Polished Surface AISI 4340 Alloy Steel Round Bar with High Tensile Strength for Mold Steel Applications
Price:
US $740-1,350 / Ton
MOQ:
1 Ton
Delivery Time:
Negotiable
Product Description
AISI 4340 Forged Alloy Steel Round Bar
Hot rolled and forged 1.6582 4340 40CrNiMoA 34CrNiMo6 alloy steel rod for industrial tools and applications.
International Grade Equivalents
| GB | AISI | DIN | JIS | EN | TOCT | ISO |
|---|---|---|---|---|---|---|
| 40CrNiMoA | 4340 | 1.6582 | SNCM439 | 41NiCrMo 7-3-2 | 40XH2MA (40XHMA) | 36CrNiMo4 |
Product Specifications
| Product Type | Diameter/Thickness (mm) | Width (mm) | Length (mm) |
|---|---|---|---|
| Round Bar | 16-600 | / | 3000-6000 |
| Plate | 16-200 | 200-800 | 3000-6000 |
Custom specifications available upon request.
Chemical Composition
| Grade | C | Si | Mn | P | S | Cr | Ni | Mo |
|---|---|---|---|---|---|---|---|---|
| 40CrNiMo | 0.37-0.44% | 0.17-0.37% | 0.50-0.80% | ≤0.025% | ≤0.025% | 0.60-0.90% | 1.25-1.65% | 0.15-0.25% |
| 4340 | 0.38-0.43% | 0.15-0.35% | 0.60-0.80% | ≤0.035% | ≤0.040% | 0.70-0.90% | 1.65-2.00% | 0.20-0.30% |
Key Features
- Chromium molybdenum alloy steel construction
- High strength and exceptional toughness
- Excellent hardenability stability and anti-overheating properties
- Superior high tensile strength with outstanding shock resistance
Typical Applications
- Heavy machinery and high-load shafts
- Rotor shafts and turbine blades
- Critical components requiring nitriding treatment
Packaging Details
20ft Container: Gross Weight 27T (5.80m × 2.13m × 2.18m)
40ft Container: Gross Weight 27T (11.8m × 2.13m × 2.18m)
Delivery Timeline
Standard products: 15-20 days
Customized products: 30-50 days
Full equipment capability including sawing, grinding, and polishing machines for custom specifications.
Additional Steel Products Available
Changfeng Tool & Die Steel offers comprehensive range including Plastic Mould Steel, Hot Work Mould Steel, Cold Work Mould Steel, Alloy Structural Steel, Tool Steel, Stainless Steel, Carbon Steel and Forged Blocks.
Quality Assurance
Partnerships with leading Chinese steel enterprises including Baosteel Group, Dongbei Special Steel, Changcheng Special Steel, Hongsheng Heavy Industry, Xingcheng Special Steel and Daye Special Steel.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
JIANGSU MITTEL STEEL INDUSTRIAL LIMITED
Location
No.283-1, Youyi Middle Road, Xishan District, Wuxi City, Jiangsu Province
Contact Person
Gao Ben