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50Mn High Elastic Carbon Structural Steel Plate
Strong Strength, High-Quality Products

50Mn High Elastic Carbon Structural Steel Plate

50Mn has high strength, elasticity, and hardness, and is mostly used after quenching and tempering, resulting in poor welding performance. 50Mn round steel is used for manufacturing heat-treated parts with high wear resistance requirements under high loads, such as gears, gear shafts, and mandrels with a cross-section below 80mm. The performance is similar to that of No. 50 steel, but its hardenability is relatively high. After heat treatment, the strength, hardness, and elasticity are slightly higher than those of No. 50 steel. Poor weldability, overheating sensitivity and temper brittleness tendency. Used as stress bearing parts, high wear parts, and high stress parts, such as mandrels with a diameter less than 80 millimeters. After high-frequency quenching, it can also be used to manufacture train shafts, worms, connecting rods, and automotive crankshafts, such as gears, gear shafts, friction discs, mandrels, flat springs, etc.
Executive standard: GB/T 699-1999.

Chemical composition of 50Mn High Elastic Carbon Structural Steel Plate

Grade C Si Mn Cr P S Cu Ni
50Mn 0.48~0.56 0.17~0.37 0.70~1.00 ≤0.25 ≤0.035 ≤0.035 ≤0.25 ≤0.30

Mechanical property of 50Mn High Elastic Carbon Structural Steel Plate

Grade Yield Strength (MPa) Ultimate Tensile Strength (MPa) Elongation at Break (%)
50Mn ≥390 ≥645 ≥13

Product Introduction of 50Mn High Elastic Carbon Structural Steel Plate

Product nameAlloy high strength steel 50Mn DIN 60Si2Mn 55Si2Mn spring steel plate
TechniqueHot rolled,cold rolled
Surface TreatmentClean, blasting and painting according to customer requirement
Thickness tolerance±0.1mm
Application65Mn steel can make a general section size of 8~15mm or so small spring such as a variety of small size flat round spring, bottom spring spring spring, also suitable for the production of spring ring valve spring clutch reed brake spring, etc 65Mnj is one of the materials for making all kinds of board springs and silk springs.

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