Alloy Steel Round Bar

About Alloy Steel Round Bar

Alloy Steel Round Bar is created using high-grade raw materials in accordance with national and international quality standards. Under the supervision of experts and professionals, this round bar is created and designed utilizing the latest technology and techniques. This bar comes in a variety of forms, sizes, kinds, thicknesses, dimensions, grades, standards, and requirements, among other things. Alloy Steel Round Bar is checked under various parameters to ensure its high working and durability. We also provide this bar in a variety of sizes and thicknesses to meet the needs of our valued customers.Product detailsMinimum Order Quantity200 KilogramSurface FinishGalvanizedShapeRoundMaterialAlloy SteelSingle Piece Length3 - 18 MeterThickness/Diameter6 - 450 mmUsage/ApplicationConstructionAs rolled and Spheroidized Annealed Standard Grade C Mn P S Si Ni Cr Mo ASTM A29 4340 0.38-0.43 0.60-0.80 0.035 max 0.040 max 0.15-0.35 1.65-2.00 0.70-0.90 0.20-0.30 EN 10250 36CrNiMo4 / 1.6511 0.32-0.40 0.50-0.80 0.035 max 0.035 max 0.40 max 0.90-1.20 0.90-1.2 0.15-0.30 BS 970 EN24 / 817M40 0.36-0.44 0.45-0.70 0.035 max 0.040 max 0.10-0.40 1.30-1.70 1.00-1.40 0.20-0.35 JIS G4103 SNCM 439 / SNCM 8 0.36-0.43 0.60-0.90 0.035 max 0.030 max 0.15-0.35 1.60-2.00 0.60-1.00 0.15-0.30 Physical Properties: Thermal Conductivity at C W / (m*K) 20 40.5 350 32.5 700 25.5 Heat Treatment: Soft Annealing C 650-700 Cooling Slowly Hardness HB max. 280 Stress-relief Annealing C 630-650 Cooling Furnace 1st Pre-Heating C up to approx. 400 in an air-circulating furnace 2nd and 3rd 780 and 1000 Hardening C 1190-1230 Quenching Salt Bath, at least 520 C Oil, Air Tempering C at least twice 530-560 Hardness after Temperature HRC 64-66