Spherical AISI 1008 Steel Powder

AISI 1008 Steel Spherical Powder, CQ, DQ, and DQSK sheet, 1.6-5.8 mm thick Product Information -:- For detailed product information, please contact sales. -: AISI 1008 Steel Spherical Powder, CQ, DQ, and DQSK sheet, 1.6-5.8 mm thick Synonyms -:- For detailed product information, please contact sales. -: -:- For detailed product information, please contact sales. -: Spherical AISI 1008 Steel Powder characteristics -:- For detailed product information, please contact sales. -: Spherical AISI 1008 Steel Powder Particle Size -:- For detailed product information, please contact sales. -: -:- -:- 0-15μm ,5-25μm, 15-45μm, 15-53μm,20-63um, 45-75μm, 45-105μm, 45-150μm ,75-150μm. (Various granularities can be customized according to customer requirements) -:- For detailed product information, please contact sales. -:

Spherical AISI 1008 Steel Powder Applicable processes -:- For detailed product information, please contact sales. -: Laser/electron beam additive manufacturing (SLM/EBM, 3D printing) Direct laser deposition (DLD) Used in thermal spray (TSA) Powder hot isostatic pressing (HIP) Metal injection molding (MIM) Powder metallurgy (PM) Laser cladding (LC), etc. -:- For detailed product information, please contact sales. -: Spherical AISI 1008 Steel Powder Chemical Composition -:- For detailed product information, please contact sales. -: -:- For detailed product information, please contact sales. -: AISI 1008 Steel, CQ, DQ, and DQSK sheet, 1.6-5.8 mm thick Product Information -:- For detailed product information, please contact sales. -: # **AISI 1008 Steel Sheet: CQ, DQ, and DQSK Qualities** ## **Product Overview** AISI 1008 steel sheet is a versatile family of low-carbon flat steel products available in three primary quality designations: Commercial Quality (CQ), Drawing Quality (DQ), and Drawing Quality Special Killed (DQSK). Supplied in thicknesses ranging from 1.6-5.8 mm, these sheets provide an optimal balance of formability, weldability, and strength for diverse manufacturing applications. With a carbon content of 0.08% maximum, AISI 1008 offers slightly higher strength than AISI 1006 while maintaining excellent forming characteristics suitable for progressively demanding operations from basic bending to complex deep drawing. Each quality level represents a distinct combination of metallurgical control, surface quality, and forming capability, allowing manufacturers to select the most cost-effective material for specific production requirements. The thickness range of 1.6-5.8 mm covers the majority of applications in automotive, appliance, construction, and general manufacturing industries. --- ## **Chemical Composition (Weight %)** ### **Base Composition (Common to All Qualities)** | Element | Minimum | Maximum | Typical | |---------|---------|---------|---------| | Carbon (C) | 0.07 | 0.10 | 0.08 | | Manganese (Mn) | 0.30 | 0.50 | 0.40 | | Phosphorus (P) | - | 0.030 | 0.015 | | Sulfur (S) | - | 0.035 | 0.020 | | Silicon (Si) | - | 0.10 | 0.06 | | Iron (Fe) | Balance | Balance | Balance | ### **Quality-Specific Metallurgical Control** * **Commercial Quality (CQ):** * Deoxidation: Typically rimmed or capped steel * Aluminum (Al): ≤0.01% (minimal intentional addition) * Nitrogen (N): 0.005-0.009% (standard control) * Inclusion Control: Standard commercial levels * **Drawing Quality (DQ):** * Deoxidation: Aluminum-killed (0.02-0.06% Al) * Aluminum Control: Tightly controlled for consistency * Nitrogen (N): ≤0.008% (improved control) * Inclusion Rating: Improved cleanliness * **Drawing Quality Special Killed (DQSK):** * Deoxidation: Fully aluminum-killed (0.03-0.07% Al) * Nitrogen (N): ≤0.006% (tightly controlled) * Optional Micro-alloying: Ti or Nb additions for grain refinement * Vacuum Degassing: Often employed for superior cleanliness ### **Residual Elements (All Qualities)** * Copper (Cu): ≤0.20% * Nickel (Ni): ≤0.20% * Chromium (Cr): ≤0.15% * Molybdenum (Mo): ≤0.05% --- ## **Physical & Mechanical Properties** ### **Physical Properties (Common to All Qualities)** | Property | Typical Value | Test Standard | |----------|---------------|---------------| | Density | 7.87 g/cm³ | ASTM A1032 | | Melting Point | 1,510-1,525°C | - | | Thermal Conductivity | 51.5 W/m·K | ASTM E1225 | | Coefficient of Thermal Expansion | 11.7 × 10⁻⁶/K | ASTM E228 | | Electrical Resistivity | 0.124 μΩ·m | ASTM B193 | | Modulus of Elasticity | 200-205 GPa | ASTM E111 | | Poisson's Ratio | 0.29-0.30 | ASTM E132 | ### **Mechanical Properties by Quality Designation** | Property | CQ | DQ | DQSK | Test Standard | |----------|----|----|------|---------------| | Yield Strength (Rp0.2) | 190-240 MPa | 180-230 MPa | 170-220 MPa | ASTM A370 | | Tensile Strength (Rm) | 310-370 MPa | 300-360 MPa | 290-350 MPa | ASTM A370 | | Elongation (50mm gauge) | 28-36% | 32-40% | 36-44% | ASTM A370 | | n-value (Strain hardening) | 0.18-0.22 | 0.20-0.24 | 0.22-0.26 | ASTM E646 | | r-value (Plastic strain ratio) | 0.9-1.1 | 1.0-1.2 | 1.1-1.3 | ASTM E517 | | Erichsen Cup Test (IE) | 8.0-9.5 mm | 9.0-10.5 mm | 10.0-11.5 mm | ISO 20482 | | Hardness (HRB) | 45-55 | 40-50 | 35-45 | ASTM E18 | ### **Thickness-Specific Mechanical Properties** | Thickness Range | Typical Yield Strength | Typical Tensile Strength | Elongation Range | |-----------------|------------------------|--------------------------|-----------------| | 1.6-2.0 mm | Higher end of range | Higher end of range | Lower end of range | | 2.0-4.0 mm | Mid-range values | Mid-range values | Mid-range values | | 4.0-5.8 mm | Lower end of range | Lower end of range | Higher end of range | ### **Formability Characteristics** * **Minimum Bend Radius (90° bend):** * CQ: 0.5 × thickness * DQ: 0.3 × thickness * DQSK: 0 × thickness (can be bent flat on itself) * **Limiting Drawing Ratio (LDR):** * CQ: 1.8-2.0 * DQ: 2.0-2.2 * DQSK: 2.2-2.4 * **Stretch Forming Capability:** Progressively improves from CQ to DQSK * **Springback Characteristics:** Reduces progressively from CQ to DQSK --- ## **Quality Designations Explained** ### **Commercial Quality (CQ)** * **Primary Purpose:** General forming, bending, and moderate stamping * **Deoxidation Method:** Rimmed or capped steel * **Surface Finish:** Standard mill finish with acceptable imperfections * **Microstructure:** Coarser grain structure acceptable * **Cost Position:** Most economical option * **Typical Applications:** Cabinets, panels, non-critical brackets, structural components ### **Drawing Quality (DQ)** * **Primary Purpose:** Moderate drawing and stretching operations * **Deoxidation Method:** Aluminum-killed for consistency * **Surface Finish:** Improved finish suitable for painting * **Microstructure:** Finer grain structure with improved uniformity * **Cost Position:** Moderate premium over CQ * **Typical Applications:** Appliance components, automotive interior panels, HVAC components ### **Drawing Quality Special Killed (DQSK)** * **Primary Purpose:** Severe drawing, complex stamping, critical forming * **Deoxidation Method:** Fully killed with aluminum, often vacuum degassed * **Surface Finish:** Premium surface quality, often extra smooth * **Microstructure:** Very fine, uniform grain structure * **Cost Position:** Highest premium for superior performance * **Typical Applications:** Automotive body panels, complex appliance parts, critical stamped components --- ## **Manufacturing & Processing Characteristics** ### **Shearing & Blanking** * **Recommended Clearance:** 5-10% of material thickness * **Tool Material:** Standard tool steel sufficient * **Burr Height:** Increases with higher quality materials * **Edge Quality:** Best with DQSK due to uniform properties * **Springback During Cutting:** Minimal with proper tooling ### **Forming Operations** * **Stamping Performance:** * CQ: Suitable for simple to moderate stamping * DQ: Good for moderate to complex stamping * DQSK: Excellent for complex and precision stamping * **Deep Drawing Capability:** * CQ: Limited depth capabilities * DQ: Good for moderate depth drawing * DQSK: Excellent for deep and complex drawing * **Stretch Forming:** * CQ: Limited stretch capability * DQ: Moderate stretch forming * DQSK: Excellent for stretch forming operations * **Roll Forming:** All qualities suitable, CQ often sufficient for simple profiles ### **Welding Characteristics** * **General Weldability:** Excellent for all qualities * **Recommended Processes:** Resistance welding (spot, seam), GMAW, GTAW * **Preheat Requirements:** Not required for thicknesses up to 6 mm * **Filler Metal Selection:** ER70S-3, ER70S-6 for matching properties * **Heat Affected Zone:** Minimal hardening, potential for grain growth * **Distortion Control:** Best with DQSK due to consistent properties ### **Machinability** * **Machinability Rating:** 70-75% (relative to AISI 1212 = 100%) * **Surface Finish:** Good to excellent with proper parameters * **Chip Formation:** Continuous chips, chip breakers recommended * **Recommended Cutting Parameters:** * Speed: 65-95 m/min for turning operations * Feed: 0.20-0.35 mm/rev * Depth of Cut: Up to 5 mm for roughing * **Tool Materials:** Coated carbide or high-speed steel recommended ### **Heat Treatment Response** * **Annealing:** 650-700°C for stress relief and softening * **Normalizing:** 870-920°C for grain refinement if needed * **Stress Relieving:** 550-600°C for dimensional stability * **Not Through-Hardenable:** Cannot be hardened by quenching * **Case Hardening:** Suitable for carburizing (0.3-0.6 mm case depth) ### **Surface Treatment Compatibility** * **Excellent for:** Painting, powder coating, electroplating * **Good for:** Hot-dip galvanizing, phosphate coating * **Surface Preparation:** Varies by quality and coating type * **Adhesion Quality:** Best with DQSK due to superior surface quality --- ## **Product Forms & Specifications** ### **Standard Dimensions** * **Thickness Range:** 1.6-5.8 mm * **Standard Widths:** 600 mm, 900 mm, 1219 mm, 1524 mm, custom available * **Length Options:** Coils or cut sheets (up to 6000 mm standard) * **Coil Weights:** Typically 5-20 metric tons * **Sheet Sizes:** Standard and custom sizes available ### **Surface Conditions Available** * **Hot-Rolled:** With mill scale (mainly CQ and some DQ) * **Cold-Rolled:** Bright, matte, or textured finishes * **Galvanized:** Zinc coated options * **Pickled & Oiled:** For improved corrosion resistance * **Temper Passed:** For improved flatness and surface ### **Dimensional Tolerances** | Thickness Range | CQ Tolerance | DQ/DQSK Tolerance | |----------------|--------------|-------------------| | 1.6-2.0 mm | ±0.15 mm | ±0.10 mm | | 2.0-4.0 mm | ±0.18 mm | ±0.13 mm | | 4.0-5.8 mm | ±0.20 mm | ±0.15 mm | ### **Flatness Requirements** * **CQ:** Commercial flatness (10-20 mm/m) * **DQ:** Improved flatness (5-15 mm/m) * **DQSK:** Premium flatness (3-10 mm/m) ### **Packaging Standards** * **Coils:** Wrapped in protective paper/plastic, steel strapped * **Sheets:** Stacked with protective interleaving * **Identification:** Clear marking with grade, size, heat number * **Protection:** VCI paper or desiccant for long-term storage --- ## **Product Applications** ### **Commercial Quality (CQ) Applications** * **General Fabrication:** Brackets, supports, frames, structural components * **Construction Industry:** Ductwork, flashing, trim, roofing components * **Industrial Equipment:** Machine guards, covers, enclosures, housings * **Storage Solutions:** Shelving, cabinets, lockers, storage containers * **Agricultural Equipment:** Equipment panels, housing components, structural parts ### **Drawing Quality (DQ) Applications** * **Appliance Manufacturing:** Washer/dryer panels, refrigerator liners, oven components * **HVAC Systems:** Ventilation ducts, housing components, air handling units * **Furniture Manufacturing:** Metal furniture frames, drawer components, structural members * **Lighting Industry:** Fixture housings, reflector panels, lighting components * **Containers & Handling:** Storage bins, material handling containers, shipping components ### **Drawing Quality Special Killed (DQSK) Applications** * **Automotive Industry:** Body panels, door skins, hoods, deck lids, fenders * **Premium Appliances:** Range hoods, dishwasher fronts, oven doors, premium appliance panels * **Electronics Industry:** Chassis components, enclosure panels, electronic housing * **Medical Equipment:** Non-critical structural components, equipment housings * **Precision Components:** Complex stamped and drawn components, precision parts ### **Thickness-Specific Applications** * **1.6-2.5 mm:** Electronic enclosures, light stampings, decorative panels * **2.5-3.5 mm:** Appliance panels, automotive components, general fabrication * **3.5-5.0 mm:** Structural panels, equipment housings, truck components * **5.0-5.8 mm:** Heavy-duty applications, structural components, industrial equipment --- ## **International Standards & Equivalents** ### **North American Standards** * **AISI/SAE:** 1008 (All qualities) * **ASTM:** A366 (CQ sheet), A619 (DQ sheet), A620 (DQSK sheet) * **SAE:** J403, J1397 * **UNS:** G10080 * **CSA:** G10080 ### **European Equivalents** * **CQ Equivalent:** DC01 (1.0330) * **DQ Equivalent:** DC03 (1.0347) * **DQSK Equivalent:** DC04 (1.0338) * **DIN:** RRSt 14 (CQ), St 14 (DQ) * **EN 10130:** Cold rolled low carbon steel flat products ### **Asian Standards** * **JIS:** SPCC (CQ), SPCD (DQ), SPCE (DQSK) * **GB:** 08, 10 (China) * **KS:** SPCC, SPCD, SPCE (Korea) * **IS:** 1079 (India) ### **Quality System Standards** * **ISO 3574:** Cold-reduced carbon steel sheet of commercial and drawing qualities * **ISO 3575:** Hot-rolled carbon steel sheet of commercial and drawing qualities * **ASTM A568:** General requirements for steel sheet products * **ASTM A749:** General requirements for steel sheet, carbon, metallic-coated ### **Testing Standards** * **ASTM E8/E8M:** Tension testing of metallic materials * **ASTM E517:** Plastic strain ratio (r-value) testing * **ISO 20482:** Erichsen cupping test * **ASTM E646:** Strain hardening exponent (n-value) testing * **ASTM E112:** Grain size determination --- ## **Quality Control & Testing** ### **Standard Testing Requirements** * **Chemical Analysis:** Per heat/lot certification * **Tensile Testing:** Regular sampling per production quantity * **Bend Testing:** For formability verification * **Surface Inspection:** Visual examination for defects * **Dimensional Verification:** Thickness, width, flatness checks ### **Advanced Testing (DQ & DQSK)** * **Erichsen Test:** Regular testing for drawing quality verification * **r-value Testing:** For deep drawing capability assessment * **n-value Testing:** For strain hardening characteristics * **Grain Size Analysis:** Per ASTM E112 * **Microcleanliness:** Inclusion rating per ASTM E45 * **Surface Roughness Measurement:** For premium surface requirements ### **Certification Requirements** * **Mill Test Certificate:** * CQ: Typically 2.2 per EN 10204 * DQ/DQSK: Typically 3.1 per EN 10204 * **Heat/Lot Traceability:** Maintained throughout processing * **Surface Quality Certificate:** For critical applications * **Third-Party Certification:** Available for critical applications * **Origin Certification:** As required by customer specifications --- ## **Technical Advantages by Quality** ### **Commercial Quality (CQ) Advantages** * **Cost-Effectiveness:** Lowest cost per square meter * **Adequate Properties:** Suitable for most non-critical applications * **Wide Availability:** Readily available from multiple sources * **Processing Versatility:** Can be formed, welded, and machined effectively * **Established Performance:** Well-understood material behavior ### **Drawing Quality (DQ) Advantages** * **Improved Formability:** Better for moderate drawing operations * **Property Consistency:** More uniform mechanical properties * **Surface Quality:** Improved finish suitable for painting * **Reduced Manufacturing Issues:** Lower scrap rates in forming operations * **Predictable Performance:** More consistent forming behavior ### **Drawing Quality Special Killed (DQSK) Advantages** * **Superior Formability:** Best for complex and severe forming * **Premium Surface:** Excellent surface quality for visible parts * **Exceptional Consistency:** Highly predictable forming behavior * **Minimal Springback:** Reduces post-forming corrections * **Reduced Rejects:** Lowest scrap rates in demanding applications --- ## **Selection Guidelines** ### **When to Select CQ** * Non-critical bending and forming operations * Cost-sensitive applications with tight budgets * Simple weldments and fabrications * Applications where surface quality is not critical * General-purpose sheet metal work * Structural components without complex forming ### **When to Select DQ** * Moderate drawing and forming operations * Applications requiring consistent forming results * Parts requiring good paint adhesion and appearance * Automotive interior components and trim * Appliance panels and housings with moderate complexity * Components with multiple forming operations ### **When to Select DQSK** * Severe drawing and complex stamping operations * Automotive exterior body panels and visible components * Critical appearance parts requiring premium finish * Complex formed components with tight tolerances * Applications requiring minimal springback and distortion * High-volume production of precision parts ### **Thickness Selection Criteria** * **1.6-2.5 mm:** Light panels, enclosures, covers, decorative applications * **2.5-3.5 mm:** Structural panels, appliance components, automotive parts * **3.5-5.0 mm:** Equipment housings, truck components, structural applications * **5.0-5.8 mm:** Heavy-duty structural applications, industrial equipment --- ## **Storage & Handling** ### **Best Practices** * **Storage Environment:** Indoor storage preferred for all qualities * **Moisture Control:** Maintain <60% relative humidity * **Stacking Methods:** Flat, with proper support to prevent bending * **Material Separation:** Different qualities and thicknesses stored separately * **Inventory Management:** First-in, first-out rotation to prevent aging ### **Surface Protection** * **Protective Coatings:** Light rust preventive oil for long-term storage * **VCI Protection:** Volatile corrosion inhibitors for sensitive applications * **Proper Wrapping:** Maintain original packaging until use * **Regular Inspection:** Periodic checks for corrosion or damage * **Cleaning Procedures:** Proper cleaning before processing ### **Handling Equipment** * **Coil Handling:** Use proper C-hooks and spreader bars * **Sheet Handling:** Vacuum lifters or sheet lifters recommended * **Transport Methods:** Secure properly to prevent damage * **Cutting Equipment:** Use appropriate shearing or cutting tools * **Safety Considerations:** Follow standard material handling safety protocols --- ## **Economic Considerations** ### **Cost Factors** * **Material Cost:** Progressive increase from CQ to DQSK * **Processing Cost:** Higher quality materials may reduce secondary operations * **Scrap Rates:** Typically lower for higher quality materials * **Tooling Costs:** May be reduced with higher quality materials * **Total Manufacturing Cost:** Consider all aspects, not just material cost ### **Return on Investment Analysis** * **CQ:** Maximum value for simple applications with tight budgets * **DQ:** Optimal for moderate forming with quality requirements * **DQSK:** Justified for complex forming and premium applications * **Lifecycle Costs:** Consider durability, maintenance, and performance requirements ### **Supply Chain Factors** * **Availability:** CQ most readily available * **Lead Times:** DQSK may have longer lead times * **Minimum Orders:** Vary by quality, supplier, and thickness * **Custom Options:** Available for large volume orders * **Global Sourcing:** Multiple international sources available --- ## **Environmental & Sustainability** ### **Recyclability** * **All Qualities:** 100% recyclable without quality loss * **Recycled Content:** Typically 25-35% minimum * **End-of-Life Value:** High scrap value * **Environmental Impact:** Lower than many alternative materials ### **Manufacturing Impact** * **Energy Consumption:** Progressive increase from CQ to DQSK * **Water Usage:** Similar for all qualities in production * **Emissions:** Controlled in modern steel production facilities * **Waste Generation:** Minimal in sheet production processes ### **Regulatory Compliance** * **REACH:** Compliant for all qualities * **RoHS:** Compliant (no restricted substances) * **California Prop 65:** Compliant with proper handling * **International Standards:** Meets global environmental requirements * **Industry Certifications:** Available for specific applications --- ## **Why Choose AISI 1008 Sheet?** ### **For Design Engineers** * **Material Options:** Three quality levels for different design requirements * **Predictable Performance:** Well-documented material behavior * **Design Flexibility:** Enables various manufacturing approaches * **Technical Support:** Extensive industry knowledge available * **Proven Applications:** Established track record in multiple industries ### **For Manufacturing Operations** * **Processing Ease:** Good formability and weldability across all qualities * **Quality Consistency:** Reliable material properties * **Manufacturing Efficiency:** Good yield in production processes * **Tooling Compatibility:** Works with standard manufacturing tooling * **Process Optimization:** Enables efficient manufacturing approaches ### **For Quality Assurance** * **Consistent Quality:** Reduced lot-to-lot variation * **Testing Standards:** Well-established testing protocols * **Traceability:** Good material traceability systems * **Certification:** Comprehensive material certifications available * **Quality Systems:** Produced under established quality management systems ### **For Purchasing & Supply Chain** * **Competitive Pricing:** Multiple suppliers ensure competitive pricing * **Supply Reliability:** Established global supply chains * **Quality Assurance:** Established quality systems and certifications * **Supply Chain Security:** Multiple sources reduce supply risk * **Inventory Management:** Can optimize inventory based on quality needs --- *Selecting the appropriate quality level requires careful consideration of forming requirements, appearance needs, production volumes, and total manufacturing cost. For critical applications or new manufacturing processes, prototype testing with production tooling is recommended when transitioning between quality levels. Consultation with material suppliers or metallurgical engineers can provide valuable guidance for specific application requirements.* -:- For detailed product information, please contact sales. -: AISI 1008 Steel, CQ, DQ, and DQSK sheet, 1.6-5.8 mm thick Specification Dimensions Size： Diameter 20-1000 mm Length <5399 mm Size:We can customized as required Standard： Per your request or drawing We can customized as required Properties（Theoretical） Chemical Composition -:- For detailed product information, please contact sales. -: AISI 1008 Steel, CQ, DQ, and DQSK sheet, 1.6-5.8 mm thick Properties -:- For detailed product information, please contact sales. -:

Spherical AISI 1008 Steel Powder Particle Size Description -:- For detailed product information, please contact sales. -: Applications of Spherical AISI 1008 Steel Powder -:- For detailed product information, please contact sales. -: -:- For detailed product information, please contact sales. -: Applications of AISI 1008 Steel Spherical Powder, CQ, DQ, and DQSK sheet, 1.6-5.8 mm thick -:- For detailed product information, please contact sales. -: Chemical Identifiers AISI 1008 Steel Spherical Powder, CQ, DQ, and DQSK sheet, 1.6-5.8 mm thick -:- For detailed product information, please contact sales. -:

Packing of AISI 1008 Steel Spherical Powder, CQ, DQ, and DQSK sheet, 1.6-5.8 mm thick -:- For detailed product information, please contact sales. -: Standard Packing: -:- For detailed product information, please contact sales. -: Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and Steel Spherical Powder drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 1870 gallon liquid totes Special package is available on request. E FORUs’ is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition