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 Alloy Round Bar ，1.8509 Alloy Round Bar ，Heat Treated Alloy Round Bar | ||
38CrMoAlA/1.8509 Alloy Round Bar Heat Treated for Enhanced Performance
Products Specification
| Products Name | 38CrMoAlA/1.8509 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 |
Standard Size of our Steel Round Bar In Stock
| 10mm | 12mm | 15mm | 16mm | 18mm | 20mm |
| 25mm | 30mm | 35mm | 38mm | 40mm | 42mm |
| 45mm | 48mm | 50mm | 55mm | 60mm | 65mm |
| 70mm | 75mm | 80mm | 85mm | 90mm | 95mm |
| 105mm | 110mm | 115mm | 120mm | 130mm | 140mm |
| 150mm | 160mm | 170mm | 180mm | 190mm | 200mm |
| 210mm | 220mm | 230mm | 240mm | 250mm | 260mm |
| 270mm | 280mm | 290mm | 300mm | 310mm | 320mm |
Material Standard: DIN 1.8509 / GB/T 3077 (Equivalent to Chinese Standard)
38CrMoAlA (DIN 1.8509) is a high-quality chromium-molybdenum-aluminum alloy steel specifically designed for nitriding treatment. It exhibits exceptional surface hardness, wear resistance, and fatigue strength after nitriding, making it ideal for high-stress components requiring superior durability and dimensional stability.
| Element | C | Cr | Mo | Al | Mn | Si | P (max) | S (max) |
|---|---|---|---|---|---|---|---|---|
| % | 0.35-0.42 | 1.35-1.65 | 0.15-0.25 | 0.70-1.10 | 0.30-0.60 | 0.20-0.45 | 0.025 | 0.025 |
Tensile Strength: 980-1180 MPa
Yield Strength: ≥ 835 MPa
Elongation: ≥ 14%
Reduction of Area: ≥ 50%
Impact Energy (Charpy): ≥ 63 J
Surface Hardness (Post-Nitriding): 900-1000 HV
Normalizing: 870-900°C, air-cooled
Quenching: 930-950°C, oil-cooled
Tempering: 600-650°C, air-cooled (adjustable based on required hardness)
Nitriding: Recommended for achieving ultra-high surface hardness (e.g., gas nitriding at 500-530°C).
Precision gears, shafts, and spindles
High-wear components (e.g., cylinder liners, piston rods)
Injection molds and tooling requiring nitrided surfaces
Aerospace and automotive high-strength fasteners
Hydraulic/pneumatic system components
Diameter Range: 10 mm – 300 mm (custom sizes available)
Length: 3,000 mm – 6,000 mm (cut-to-length service provided)
Surface Condition: Black, polished, or precision machined (as per request)
Tolerances: DIN h9/h11 or customized
Standard Packaging: Anti-rust oil coating + waterproof paper + wooden crates
Certification: Mill test certificates (EN 10204 3.1/3.2) provided
MOQ: 1 ton (smaller trial orders negotiable)
Full traceability with heat number identification.
Compliance with ISO 683-3, ASTM A29, and DIN EN 10083-3 standards.
Ultrasonic testing (UT) and magnetic particle inspection (MPI) available.
Notes:
Custom heat treatment and machining services (e.g., turning, grinding) are available.
Technical support for nitriding process optimization provided.
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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