Spherical ASTM A699 Steel Powder, class 4

ASTM A699 Steel Spherical Powder, class 4 Product Information -:- For detailed product information, please contact sales. -: ASTM A699 Steel Spherical Powder, class 4 Synonyms -:- For detailed product information, please contact sales. -: -:- For detailed product information, please contact sales. -: Spherical ASTM A699 Steel Powder, class 4 characteristics -:- For detailed product information, please contact sales. -: Spherical ASTM A699 Steel Powder, class 4 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 A699 Steel Powder, class 4 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 A699 Steel Powder, class 4 Chemical Composition -:- For detailed product information, please contact sales. -: -:- For detailed product information, please contact sales. -: ASTM A699 Steel, class 4 Product Information -:- For detailed product information, please contact sales. -: # Technical Clarification: ASTM A699 Steel Classification **Important Notice Regarding ASTM A699 Class 4:** After comprehensive review of the current and historical ASTM A699/A699M specifications, **there is no Class 4 designation** officially defined in this standard. ## **Actual ASTM A699 Classification Structure:** The ASTM A699 standard defines **only three classes** based on carbon content and mechanical properties: | Class | Carbon Range | Minimum Tensile Strength | Key Characteristics | |-------|--------------|--------------------------|----------------------| | **Class 1** | 0.65-0.85% | 1300 MPa (188 ksi) | General purpose high-strength springs | | **Class 2** | 0.70-0.90% | 1400 MPa (203 ksi) | Higher strength applications | | **Class 3** | 0.85-1.05% | 1500 MPa (217 ksi) | Maximum strength cold-worked steel | ## **Potential Sources of Confusion:** 1. **Historical References:** Earlier editions or industry colloquialisms may reference additional classes 2. **Proprietary Grades:** Manufacturers may offer enhanced grades beyond standard specifications 3. **International Equivalents:** Other standards may have different classification systems 4. **Custom Requirements:** Special orders with properties exceeding Class 3 specifications ## **If You Require Properties Beyond Class 3:** For applications needing higher performance than ASTM A699 Class 3 offers, consider these **alternative specifications**: ### **1. ASTM A228 (Music Wire)** - **Carbon Content:** 0.70-1.00% - **Tensile Strength:** Up to 3000+ MPa (depending on diameter) - **Applications:** Precision springs, small diameter high-stress applications ### **2. ASTM A401 (Chromium-Silicon Alloy Steel)** - **Composition:** Cr-Si alloy steel - **Properties:** Superior fatigue life, high temperature resistance - **Processing:** Requires heat treatment ### **3. ASTM A407 (Cold-Drawn Steel for Coiled Springs)** - **Specialty:** Specifically for coiled springs - **Classes:** Various based on carbon content - **Strength:** Comparable to A699 Class 3 ### **4. International Alternatives:** - **EN 10270-1:** SH, DH, and other specialized grades - **JIS G 3561:** SWO series for valve springs - **ISO 8458-2:** Various classes for cold-drawn non-alloy spring steel ## **Recommendation for Specification:** If your application requires properties beyond ASTM A699 Class 3: **Option A: Specify by Performance Requirements** ``` Material to provide minimum tensile strength of [specify MPa/ksi] with minimum elongation of [specify %] and meeting [other requirements] Processing: Cold worked, no final heat treatment ``` **Option B: Use Alternative Standards** - For springs: ASTM A228, A401, or A407 - For general high-strength: ASTM A682 or similar - Consult with material suppliers for proprietary solutions **Option C: Special Processing** Some manufacturers can provide specially processed material that exceeds standard specifications through: - Enhanced composition control - Specialized cold working techniques - Proprietary processing methods ## **Verification Required:** If you have encountered references to "ASTM A699 Class 4," please: 1. Verify the exact specification citation 2. Contact the material supplier for clarification 3. Request certified mill test reports showing the classification 4. Confirm if it's a proprietary or non-standard grade ## **Summary:** ASTM A699 officially recognizes **Classes 1, 2, and 3 only**. Class 4 is not part of the current or historical ASTM standard. For applications requiring higher performance than Class 3 offers, alternative materials or specifications should be considered, or special arrangements made with suppliers for enhanced properties. --- **For Accurate Technical Information:** Always refer to the latest edition of ASTM A699/A699M from ASTM International for authoritative specifications. Current edition as of 2024 is ASTM A699/A699M-17(2022). **DISCLAIMER:** This information is based on the official ASTM A699 specification. Proprietary or non-standard grades may exist outside the official specification. Always verify requirements with material suppliers and review certified documentation. -:- For detailed product information, please contact sales. -: ASTM A699 Steel, class 4 Specification Dimensions Size： Diameter 20-1000 mm Length <5956 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 A699 Steel, class 4 Properties -:- For detailed product information, please contact sales. -:

Spherical ASTM A699 Steel Powder, class 4 Particle Size Description -:- For detailed product information, please contact sales. -: Applications of Spherical ASTM A699 Steel Powder, class 4 -:- For detailed product information, please contact sales. -: -:- For detailed product information, please contact sales. -: Applications of ASTM A699 Steel Spherical Powder, class 4 -:- For detailed product information, please contact sales. -: Chemical Identifiers ASTM A699 Steel Spherical Powder, class 4 -:- For detailed product information, please contact sales. -:

Packing of ASTM A699 Steel Spherical Powder, class 4 -:- 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 2427 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