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Raian IonescuMaterial quality very good. we have cooperate more than 10 Years. They trade lots kinds of steel material. All material quality good. They duty for all material quality. We are planing continue cooperate with them in the future
Hot Rolled SAE4340 Alloy Steel Round Bar with Polished Surface for Mold Steel Application
Product Details
| Material Grade | SAE4340 | Surface Treatment | Polished |
|---|---|---|---|
| Diameter Range | 6-630mm | Length Range | 3000-6000mm |
| Hardness | 228HB Max | Carbon Content | 0.37-0.44% |
| Silicon Content | 0.17-0.37% | Manganese Content | 0.50-0.80% |
| Chromium Content | 0.60-0.90% | Nickel Content | 1.25-1.65% |
| Molybdenum Content | 0.15-0.25% | Phosphorus Content | ≤0.025% |
| Sulfur Content | ≤0.025% | Production Capacity | 500 Tons |
| Tolerance Standard | H11 | ||
| Highlight | Hot Rolled Alloy Steel Round Bar,Polished Surface 4340 Steel Bar,Mold Steel Application SAE4340 Steel Rod |
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Product Description
ASTM A29/A29m Material SAE4340 Hot Rolled Round Bar
Annealed 228HB Max Surface Peeled Tolerances H11 Length 3-4 Meter
Hot Rolled / Forged 1.6582 4340 40CrNiMoA 34CrNiMo6 Alloy Steel Rod for Tools
Similar 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 shaft components
- Rotor shafts and turbine blades
- Critical parts requiring special performance after nitriding treatment
Packaging Specifications
20ft Container: Gross Weight 27T (5.80m × 2.13m × 2.18m)
40ft Container: Gross Weight 27T (11.8m × 2.13m × 2.18m)
40ft Container: Gross Weight 27T (11.8m × 2.13m × 2.18m)
Delivery Time
Standard Products: 15-20 days (abundant stock available)
Customized Products: 30-50 days
Full equipment capability including sawing, grinding, and polishing machines for custom specifications
Customized Products: 30-50 days
Full equipment capability including sawing, grinding, and polishing machines for custom specifications
Additional Product Range
Changfeng Tool & Die Steel Main Products
| DIN | AISI | JIS | GB (China) | Flat Bar Thickness (mm) | Flat Bar Width (mm) | Flat Bar Length (mm) | Round Bar Diameter (mm) | Round Bar Length (mm) | Manufacturing Process |
|---|---|---|---|---|---|---|---|---|---|
| 1.121 | SAE1050 | S50C | 50# | 10-450 | 155-2200 | 2000-12000 | Forged, Hot Rolled | ||
| 1.2311 | P20 | PDS-3 | 3Cr2Mo | 10-460 | 155-2200 | 2000-10000 | 20-200 | 2000-6000 | Forged, Hot Rolled |
| 1.2738 | P20+Ni | - | 3Cr2NiMnMo | 21-300 | 155-2200 | 2000-8000 | 20-200 | 2000-6000 | Forged, Hot Rolled |
| 1.2379 | D2 | SKD10 | SKD10 | 10-200 | 155-810 | 2000-6000 | 14-80 | 3000-6000 | Forged, Hot Rolled |
| 1.2080 | D3 | SKD1 | 3Cr2Mo | 10-200 | 155-810 | 2000-6000 | 20-200 | 3000-6000 | Forged, Hot Rolled |
| 1.2083 | 420 | - | 4Cr13 | 10-500 | 155-1200 | 2000-6000 | 12-300 | 3000-6000 | Forged, Hot Rolled |
| 1.2344 | H13 | SKD61 | 4Cr5MoSiV1 | 10-500 | 155-1600 | 2000-6000 | 16-400 | 3000-6000 | Forged, Hot Rolled |
| 1.2510 | O1 | SKS3 | 9CrWMn | 10-200 | 155-810 | 2000-6000 | 20-200 | 3000-6000 | Forged, Hot Rolled |
| 1.7225 | SAE4140 | SCM440 | 42CrMo | 10-280 | 155-2200 | 2000-6000 | 16-450 | 3000-6000 | Forged, Hot Rolled |
Company Profile
We are a professional special steel company specializing in this industry in China since 2005. Our main products include Plastic Mould Steel, Hot Work Mould Steel, Cold Work Mould Steel, Alloy Structural Steel, Tool Steel, Stainless Steel, Carbon Steel and Forged Blocks.
To ensure high quality products for our customers, we maintain close cooperation with many Chinese first-class special 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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