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Brand Name : DELTA
Model Number : 31CrMoV9(1.8509)/ 38CrMoAlA
Certification : ISO
Place of Origin : China
MOQ : 1 Ton
Price : 600-850 USD/Ton
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
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.
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38CrMoAlA/1.8509 Alloy Round Bar Heat Treated For Enhanced Performance Images |