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Comparison of 35# steel and 45# steel

Comparison of 35# steel and 45# steel

Posted:2020-12-02 11:12:24
The 35# steel plate has outstanding plasticity and proper strength, good process performance, and acceptable welding performance. It is mostly used under normalizing and quenching and tempering conditions.

Comparison of 35# steel and 45# steel
45# steel is high-quality carbon structural steel, its strength is 61, HRC is 48-55, and it is used more mechanically; 35# is also high-quality carbon structural steel, but its strength is only 54, and HRC is 38- 45. The difference between them can be distinguished from the sparks. Sparks with low carbon content have drooping tails, slightly darker colors, and sometimes spear-point flowers, not many flowers, and thicker awn lines.

Mechanical properties of 35# steel
Tensile strength σb (MPa): ≥530(54)
Yield strength σs (MPa): ≥315(32)
Elongation δ5 (%): ≥20
Reduction of area ψ (%): ≥45
Impact energy Akv (J): ≥55
Impact toughness value αkv (J/cm²): ≥69(7)
Hardness: not heat-treated ≤197HB
35# steel plate use: widely used in the production of various forgings and hot pressed parts, cold drawn and upsetting steel, seamless steel pipes, parts in mechanical production, such as crankshafts, shafts, shaft pins, levers, connecting rods, beams, sleeves Tubes, rims, washers, screws, nuts, etc.
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