Spherical ASTM A611 Steel Powder, grade B

ASTM A611 Steel Spherical Powder, grade B Product Information -:- For detailed product information, please contact sales. -: ASTM A611 Steel Spherical Powder, grade B Synonyms -:- For detailed product information, please contact sales. -: -:- For detailed product information, please contact sales. -: Spherical ASTM A611 Steel Powder, grade B characteristics -:- For detailed product information, please contact sales. -: Spherical ASTM A611 Steel Powder, grade B 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 ASTM A611 Steel Powder, grade B 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 ASTM A611 Steel Powder, grade B Chemical Composition -:- For detailed product information, please contact sales. -: -:- For detailed product information, please contact sales. -: ASTM A611 Steel, grade B Product Information -:- For detailed product information, please contact sales. -: **Product Introduction: ASTM A611 - Steel, Grade B (Cold-Rolled Structural Quality)** --- ### **1. Overview & International Standard** ASTM A611, titled *"Standard Specification for Structural Steel (Cold-Formed), Carbon, Cold-Rolled"*, is an international standard published by **ASTM International**. It specifically governs **cold-rolled carbon steel sheets** supplied in the **as-rolled (unannealed) condition**, where the strength is achieved through the work-hardening effect of the cold reduction process. This standard is primarily intended for structural applications where a combination of **good strength, formability, surface finish, and dimensional precision** is required. **Grade B** is one of the designated strength levels within this specification. --- ### **2. Key Characteristics** * **Cold-Rolled Condition:** Supplied directly from the final cold-rolling pass without subsequent annealing. This provides higher strength and hardness compared to hot-rolled or annealed steel. * **Structural Focus:** Unlike general-purpose commercial quality steels, ASTM A611 mandates specific minimum mechanical properties, making it suitable for calculated structural components. * **Excellent Surface & Tolerances:** The cold-rolling process yields a smooth, uniform surface ideal for painting or exposed applications and maintains tight dimensional tolerances. * **Work Hardening:** The specified mechanical properties are a direct result of the cold-work during manufacturing. Further forming operations can alter these properties. --- ### **3. Chemical Composition** ASTM A611 does not prescribe rigid chemical composition limits for Grade B. The chemical makeup is at the producer's discretion, designed to consistently achieve the required mechanical properties and formability after cold rolling. It is typically a **low-carbon, aluminum-killed steel** to ensure good ductility and non-aging characteristics. A representative composition is: | Element | Typical Range / Maximum (%) | | :--- | :--- | | **Carbon (C)** | 0.10 - 0.15 | | **Manganese (Mn)** | 0.30 - 0.60 | | **Phosphorus (P)** | 0.035 max | | **Sulfur (S)** | 0.035 max | | **Silicon (Si)** | 0.05 max (or as needed for deoxidation) | | **Aluminum (Al)** | 0.01 - 0.07 (for killed steel) | --- ### **4. Mechanical & Physical Properties** All mechanical tests are performed on specimens taken **transverse to the rolling direction**. #### **Mechanical Properties (Mandatory Minimums):** * **Yield Strength (0.2% Offset):** **40 ksi min (275 MPa min)** * **Tensile Strength:** **52 ksi min (360 MPa min)** * **Elongation in 2 inches (50 mm) Gauge Length:** * For thickness < 0.056 in. (1.42 mm): **20% min** * For thickness ≥ 0.056 in. (1.42 mm): **22% min** #### **Typical Physical Properties:** * **Density:** 0.284 lb/in³ (7.85 g/cm³) * **Modulus of Elasticity:** 29,000 ksi (200 GPa) * **Poisson's Ratio:** 0.29 * **Coefficient of Thermal Expansion:** 6.5 x 10⁻⁶ /°F (11.7 x 10⁻⁶ /°C) --- ### **5. Common Product Applications** ASTM A611 Grade B is selected for structural components that benefit from its higher strength (compared to Grade A) and superior surface quality. * **Building & Construction:** Light structural framing members (studs, joists), roof purlins, wall girts, metal building systems, and load-bearing panels. * **Storage & Material Handling:** Structural components for pallet racking systems, storage shelves, warehouse unit frames, and industrial bins. * **Transportation:** Interior structural members, floor supports, and body reinforcements for trailers, truck bodies, buses, and railcars. * **Industrial Equipment:** Machine guards, housing frames, support bases, and agricultural equipment parts requiring a good painted finish. * **Commercial Products:** Lockers, office furniture frames, and retail display structures where strength and appearance are both important. --- ### **6. Comparison & Availability** * **Availability:** Supplied primarily in **coils** and **cut-to-length sheets**. * **Comparison within ASTM A611:** * **Grade A:** Lower strength (33 ksi min yield), higher elongation. Used for less demanding structural parts. * **Grade B:** **Higher strength (40 ksi min yield)** with slightly lower elongation. A balanced choice for many structural applications. * **Grades C, D, & E:** Progressively higher strength levels (50, 80, and 80+ ksi min yield) for more demanding, lighter-weight designs. * **Comparison with Other Standards:** * **vs. ASTM A36 (Hot-Rolled):** A611-B offers better surface finish/tolerances and is cold-rolled, but is generally available in thinner gauges. * **vs. ASTM A1011 (Commercial Quality):** A611 is a *structural* specification with guaranteed minimum mechanical properties, whereas A1011 (e.g., CS Type B) properties are typically reported but not mandated as minima. * **vs. ASTM A653 (Galvanized):** A611 is uncoated. For corrosion resistance, A653 (e.g., SS Grade 40) with a zinc coating would be specified, often using a similar base chemistry. --- ### **Conclusion** ASTM A611 Grade B represents a **medium-strength, cold-rolled structural steel sheet** that is a versatile workhorse for engineered fabrications. Its guaranteed 40 ksi minimum yield strength, combined with the inherent benefits of the cold-rolled process—excellent surface quality, dimensional accuracy, and good formability—makes it a preferred and cost-effective material for a wide range of light-to-medium structural applications across the construction, transportation, and manufacturing industries. Designers select it when the functional and aesthetic requirements of a component align with its specific performance profile. -:- For detailed product information, please contact sales. -: ASTM A611 Steel, grade B Specification Dimensions Size： Diameter 20-1000 mm Length <5944 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. -: ASTM A611 Steel, grade B Properties -:- For detailed product information, please contact sales. -:

Spherical ASTM A611 Steel Powder, grade B Particle Size Description -:- For detailed product information, please contact sales. -: Applications of Spherical ASTM A611 Steel Powder, grade B -:- For detailed product information, please contact sales. -: -:- For detailed product information, please contact sales. -: Applications of ASTM A611 Steel Spherical Powder, grade B -:- For detailed product information, please contact sales. -: Chemical Identifiers ASTM A611 Steel Spherical Powder, grade B -:- For detailed product information, please contact sales. -:

Packing of ASTM A611 Steel Spherical Powder, grade B -:- 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 2415 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