Spherical 10B20 Steel Powder

10B20 Steel Spherical Powder Product Information -:- For detailed product information, please contact sales. -: 10B20 Steel Spherical Powder Synonyms -:- For detailed product information, please contact sales. -: -:- For detailed product information, please contact sales. -: Spherical 10B20 Steel Powder characteristics -:- For detailed product information, please contact sales. -: Spherical 10B20 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 10B20 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 10B20 Steel Powder Chemical Composition -:- For detailed product information, please contact sales. -: -:- For detailed product information, please contact sales. -: 10B20 Steel Product Information -:- For detailed product information, please contact sales. -: # **Product Specification: AISI 1020 Steel, Normalized, Round Bar (100 mm / 4 in.)** --- ## **1. Product Overview** This specification defines a **large-section, premium-grade AISI 1020 carbon steel** round bar, processed to a controlled **Normalized** heat-treated condition. The **100 mm (4.0 inch) diameter** bar undergoes a precise thermal cycle, being uniformly heated to **925°C (1700°F)** to achieve full austenitization, followed by a controlled **air cool**. This rigorous normalization treatment is specifically engineered for large cross-sections to transform and refine the microstructure throughout the entire diameter, effectively eliminate residual manufacturing stresses, and homogenize mechanical properties from surface to core. The result is a high-integrity material offering an optimal balance of strength, toughness, and dimensional stability, making it the definitive choice for critical, heavy-duty industrial components where reliability and consistency are paramount. ## **2. Process Rationale & Metallurgical Advantages** * **Designed for Large Sections:** The specified 925°C temperature ensures complete austenitization even at the core of the 100 mm diameter, a critical requirement often challenging in large sections where thermal inertia is high. * **Through-Section Property Homogenization:** The controlled air-cooling rate is managed to achieve a predominantly fine ferrite-pearlite microstructure throughout, minimizing property gradients between the surface and center. * **Profound Stress Relief:** Effectively eliminates the significant residual thermal and mechanical stresses locked in from the initial ingot casting and hot-rolling processes of large billets, which is essential for preventing distortion during heavy machining or in service. * **Foundation for Further Processing:** Establishes a uniform, stress-free, and fine-grained foundational microstructure that is imperative for successful subsequent operations such as heavy machining, deep case hardening, or forging. ## **3. Standard Chemical Composition (Weight %)** | Element | AISI 1020 Specification | Typical Analysis | | :--------------- | :---------------------- | :--------------- | | **Carbon (C)** | 0.18 - 0.23 | 0.20 | | **Manganese (Mn)**| 0.30 - 0.60 | 0.45 | | **Phosphorus (P)**| ≤ 0.040 | 0.010 | | **Sulfur (S)** | ≤ 0.050 | 0.025 | | **Iron (Fe)** | Balance | Balance | ## **4. Typical Mechanical & Physical Properties** *Properties are representative for the core of a 100 mm diameter bar normalized at 925°C. Slight variations between surface (faster cool) and center (slower cool) are inherent but minimized by proper practice.* | Property | Metric Value (Core-Typical) | Imperial Value (Core-Typical) | | :--------------------------------- | :--------------------------- | :---------------------------- | | **Tensile Strength** | 400 - 480 MPa | 58,000 - 69,600 psi | | **Yield Strength (0.2% Offset)** | 310 - 360 MPa | 45,000 - 52,200 psi | | **Elongation in 50 mm (2 in)** | 22% - 30% | 22% - 30% | | **Reduction of Area** | 45% - 58% | 45% - 58% | | **Hardness (Brinell)** | 105 - 130 HB | 105 - 130 HB | | **Charpy Impact V-Notch (21°C)** | 35 - 55 J | 26 - 41 ft-lbf | | **Modulus of Elasticity** | 190 - 210 GPa | 27,500 - 30,500 ksi | | **Machinability (Relative)** | **Good** | Requires robust tooling and power. | | **Density** | 7.87 g/cm³ | 0.284 lb/in³ | | **Melting Point** | ~1520°C | ~2768°F | ## **5. Primary Applications** This product is specified for the most demanding large-scale mechanical and structural applications across heavy industry. * **Critical Large-Diameter Shafting:** Main propulsion shafts, heavy industrial rotor shafts, rolling mill pinions, and large turbine shafts requiring exceptional straightness and uniform strength. * **Large Gear Blanks & Forging Stock:** The essential pre-form material for massive case-hardened gears in mining equipment, marine drives, wind turbine gearboxes, and steel mill drives. * **Heavy Machinery Components:** Large rollers, mandrels, anvil blocks, press columns, and key components for extrusion and forging presses. * **Hydraulic & Pneumatic Cylinder Barrels:** For large-bore hydraulic cylinders where internal surface finish and pressure integrity are critical. * **Base Plates & Machine Tool Beds:** As a stable, stress-relieved material for precision machine foundations and large fixture bases. * **Defense & Energy Sector Components:** Used in structural and rotating parts for specialized applications requiring certified material pedigree and property uniformity. ## **6. Conforming International Standards** This product is manufactured to meet the exacting requirements of international standards for normalized carbon steel bars of special quality. * **AISI (USA):** AISI 1020 * **ASTM (USA):** **ASTM A29/A29M** (Normalized Condition). **ASTM A576** (Grade 1020, Special Quality, often specified normalized for forging/machining). May also conform to **ASTM A668** for forgings. * **SAE (USA):** SAE J403, SAE J412 * **UNS (USA):** UNS G10200 * **DIN (Germany):** 1.0402 / C22 (+N condition as per **EN 10083-2**). * **EN (Europe):** **EN 10083-2**: Steels for quenching and tempering – Part 2: Technical delivery conditions for non-alloy steels. * **ISO (International):** **ISO 683-18**: Heat-treatable steels, alloy steels and free-cutting steels. Relevant to **ISO 630** for structural steel plates/wide flats. ## **7. Fabrication & Quality Assurance Notes** * **Machining:** Requires heavy-duty machine tools with sufficient power and rigidity. Deep-hole drilling, heavy turning, and large-scale milling are common. The normalized structure ensures uniform cutting resistance. * **Welding:** **Expert procedure required.** Welding large sections introduces significant heat input, creating a large HAZ and reintroducing stresses. Pre-heating, strict control of interpass temperature, use of low-hydrogen electrodes, and a mandatory post-weld stress relief or re-normalization cycle are critical. * **Non-Destructive Testing (NDT):** **Highly recommended.** Ultrasonic Testing (UT) is standard to verify internal soundness (freedom from significant shrinkage, porosity, or non-metallic inclusions) throughout the large cross-section. * **Subsequent Heat Treatment:** This is the **necessary precursor** for successful case hardening of large parts. It prevents unpredictable distortion and ensures core properties are stable during long carburizing cycles. ## **8. Availability & Certification** * **Form:** Straight length, round bar. Available as black (scaled) or rough-turned. * **Diameter:** **100 mm (4.000 inches)** nominal. * **Condition:** **Normalized (N)**. * **Certification:** Supplied with a comprehensive **Material Test Report (MTR/EN 10204 3.1/3.2)** documenting heat chemistry, tensile results from a representative test coupon, and often impact test data. Supplementary NDT reports (UT) can be specified. --- **Disclaimer:** The information provided is for technical reference and constitutes typical values. Properties in large sections can exhibit inherent gradients. The successful use of this material in critical applications depends on appropriate design, validated manufacturing processes (machining, welding, heat treatment), and rigorous quality control. The supplier's liability is limited to the specifications guaranteed on the certified MTR. The purchaser is solely responsible for final engineering validation, process qualification, and ensuring fitness for purpose in the intended application. -:- For detailed product information, please contact sales. -: 10B20 Steel Specification Dimensions Size： Diameter 20-1000 mm Length <5454 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. -: 10B20 Steel Properties -:- For detailed product information, please contact sales. -:

Spherical 10B20 Steel Powder Particle Size Description -:- For detailed product information, please contact sales. -: Applications of Spherical 10B20 Steel Powder -:- For detailed product information, please contact sales. -: -:- For detailed product information, please contact sales. -: Applications of 10B20 Steel Spherical Powder -:- For detailed product information, please contact sales. -: Chemical Identifiers 10B20 Steel Spherical Powder -:- For detailed product information, please contact sales. -:

Packing of 10B20 Steel Spherical Powder -:- 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 1925 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