AISI 4340 Alloy Steel Round Bar
AISI 4340 Alloy Steel Round Bar
4340 steel is an ultra-high strength steel classified a medium-carbon, low-alloy steel. 4340 steel has high strength, ductility, toughness, creep resistance,and fatigue resistance relative to most other steels. High degrees of hardenability are achievable in the alloy, with HRC hardnesses ranging from 24 to 53 depending on the heat treatment.
♣ CHEMICAL COMPOSITION
| Steel Grade | C | Si | Mn | Cr | Mo | Ni | V | W | P | S | Cu |
| 4340 | 0.38-0.43 | 0.15-0.30 | 0.60-0.80 | 0.70-0.90 | 0.20-0.30 | 1.65-2.00 | – | – | ≤0.035 | ≤0.04 | ≤0.30 |
♣ DETAIL INFORMATION
| Product Name | AISI 4340 Alloy Steel Round Bar | ||||
| Steel Grade | 4340 | ||||
| Standard | ASTM/DIN/JIS | ||||
| Technique | Hot Rolled/Forged | ||||
| Size | Hot Rolled φ 20-330 mm Hot Forged φ110-1200 mm (φ110-250 mm Hot rolled /forged ) |
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♣ PRODUCT CATALOG ( Download )
Product Catalog-Steel bars (PDF)
Product Catalog-Steel tube （PDF）
Typical Size Range for Hot Rolled Seamless Steel Tube (PDF)
