JIANGSU MITTEL STEEL INDUSTRIAL LIMITED
| Payment Terms | L/C, T/T, Western Union |
| Supply Ability | 20Ton per week |
| Delivery Time | 5 - 12 days based on the quantity |
| Packaging Details | standard packing for export |
| Products Name | Alloy Steel Round Bar |
| Diameter | 10 - 300mm |
| Length | 6m |
| Tech | Hot rolled |
| Service | Cutting |
| MOQ | 1 Ton |
| Loading Port | Shanghai Port |
| Standard | ASTM EN GB |
| Brand Name | DELTA |
| Model Number | 31CrMoV9（1.8509）/ 38CrMoAlA |
| Certification | ISO |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C, T/T, Western Union | Supply Ability | 20Ton per week |
| Delivery Time | 5 - 12 days based on the quantity | Packaging Details | standard packing for export |
| Products Name | Alloy Steel Round Bar | Diameter | 10 - 300mm |
| Length | 6m | Tech | Hot rolled |
| Service | Cutting | MOQ | 1 Ton |
| Loading Port | Shanghai Port | Standard | ASTM EN GB |
| Brand Name | DELTA | Model Number | 31CrMoV9（1.8509）/ 38CrMoAlA |
| Certification | ISO | Place of Origin | China |
| High Light | 38CrMoAlA Steel Round Bar ，31CrMoV9 Steel Round Bar ，Precision Machining Steel Round Bar | ||
31CrMoV9(1.8509)/ 38CrMoAlA Nitriding Alloy Steel Round Bar for Precision Machining
Products Specification
| Products Name | 38CrMoAlA Nitriding Steel Round Bar |
| Diameter | 10 - 300 mm |
| Length | 6m or custom cutting any length as request |
| Type | Hot Rolled |
| Brand | BAOSTEEL DELTA DONGBEI HUAXI SHAGANG.etc |
| MOQ | 1 Ton |
| Loading Port | Shanghai Port |
| Packing | packing by steel wire rope |
| Deliver time | 5 - 7 days for stock materials |
| Other Grade | Q195,Q235,10#,20#,35#,45#,Q215,Q345,12Cr1Mov,15CrMo,304,3 16,20Cr,40Cr,20CrMo,35CrMo,42CrMo,40CrNiMo,GCr15,65Mn,50Mn, 50Cr,3Cr2W8V,20CrMnTi,5CrMnMo ,38CrMoAl, 31CrMoV9 |
| Standard | ASTM GB EN DIN |
| Application | Structure and Industrial |
| Element | C | Cr | Mo | Al | Mn | Si | P (≤) | S (≤) |
|---|---|---|---|---|---|---|---|---|
| Content | 0.35~0.42 | 1.35~1.65 | 0.15~0.25 | 1.00~1.30 | 0.30~0.60 | 0.20~0.45 | 0.025 | 0.025 |
Tensile Strength (σ₃): ≥980 MPa
Yield Strength (σ₅): ≥835 MPa
Elongation (δ): ≥14%
Impact Toughness (AKU): ≥63 J
Surface Hardness (After Nitriding): ≥850 HV
Excellent Nitridability: High aluminum (Al) content ensures a hard, wear-resistant nitride layer (0.3–0.5mm depth).
High Core Strength: Suitable for heavy-load components requiring both surface hardness and core toughness.
Stability: Good resistance to tempering and fatigue.
Quenching: 930–950°C (Oil cooling)
Tempering: 600–650°C (Air cooling)
Nitriding: 500–530°C (Ion/Gas nitriding for optimal surface hardness)
Precision gears, shafts, and spindles
Injection molding machine screws
Aerospace and automotive high-wear components
Hydraulic/pneumatic cylinders
USA (ASTM/AMS): AMS 6470 (Nitraloy 135M)
Europe (EN/DIN): 31CrMoV9 (1.8509)
Japan (JIS): SACM645
Packaging: Bundles with steel straps, waterproof paper, or as per customer request.
Surface Protection: Oiled or phosphated to prevent rust.
Lead Time: 15–30 days (Subject to quantity).
Mill Test Certificate (MTC) per EN 10204 3.1
Compliance with GB, ISO, or customer-specified standards.
Note: Custom sizes, heat treatment, and testing (e.g., UT, hardness mapping) are available upon request.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter
Total Annual:
>1000000
Employee Number:
>100
Ecer Certification：
Verified Supplier
Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative... Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative...
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