40CrNiMoA High Quality Steel Round Bar 4340 Alloy Structural Steel
Quick Details Port: Shanghai, China Payment Terms: L/C,D/A,D/P,T/T,Western Union,MoneyGram,PayPal Shape: Round bars Service: Sample free and 24 hours online Dimensions: Dia:210-430mm;L:2000~5800mm Grade: 4340/1.6511/SNCM439/40CrNiMoA Standard: AISI,ASTM,BS,DIN,GB,JIS Surface treatment: Black Name: Structural Steel Sheet 4340 Alloy Steel Plate 1.6511 Die Steel Special Use: mold steel Type: Alloy Steel Bar Alloy Or Not: Is Alloy Packing: Seaworthy Packing Test: SGS/UT100%/Elements testing Technology: Hot Rolled Technique: Hot Rolled Application: Tool Steel Bar Certificate: ISO/Mill certificate Steel Grade: alloy steel 1. 4340 Steel Chemical composition C 0.38-0.43% Cr 0.70-0.90% Si 0.15-0.35% Mo 0.20-0.30% Mn 0.60-0.80% Ni 1.65-2.00% P ≤0.025% S ≤0.025% 2. 4340 Steel Equivalent Steel Grade DIN 1.6511/1.6563 ASTM A29 4340 JIS SCM439 BS 816M40 GB 40CrNiMoA EN 10263 41NiCrMo 7-3-2 NF 40NCD3 ISO 683 36CrNiMo4 GNS G43400 3. Surface Treatment Bar: Origin Black 4. Size Round bar: Diameter(mm) 210-430mm; Length(mm) Max 12000mm. 5. Charateristics 4340 steel offers toughness and high strength in the heat treated condition, with good fatigue strength. Available in round bar 4340 is available fully certified and suitable for applications requiring a high tensile alloy steel. AISI 4340 is commonly supplied quenched and tempered with a hardness of between 24 to 29HRc 6. Applications This grade of steel is suited for shock loading […]