Product Name: | Carbon steel 1045/K1045/45# Round bar. |
Product characteristics: | 1045 refers to the medium carbon quenched and tempered structure Steel. The cold plasticity of this steel is average, and annealing and normalizing are slightly better than quenching and tempering. It has high strength and good machinability. After appropriate heat treatment, it can obtain a certain degree of toughness, plasticity, and wear resistance |
Standard: | AS1442-2007 |
Chemical component: | C:0.43~0.45;Si:0.10~0.35;Mn:0.60~0.90(45#:0.50~0.80);P≤0.04;S≤0.04, |
Chinese equivalent brand: | 45#; 45Mn |
Mechanical properties:
Tensile strength σb (MPa)：≥600
Yield strength σs (MPa)：≥355
Elongation δ5 (%)：≥16
Reduction of areaψ (%)：≥40
Hardness：Unheat treated≤229HB;Annealed steel≤197HB
Heat treatment process: The recommended heat treatment temperature for 45 steel according to GB/T699-1999 standard is 850 ℃ normalizing, 840 ℃ quenching, and 600 ℃ tempering, achieving a yield strength ≥ 355MPa.
The reference corresponding steel grades are as follows:
Chinese GB standard steel grade 45;
Japanese JIS standard steel grade S45C/S48C;
German DIN standard material steel grade 1.0503;
German DIN standard steel grade C45;
British BS standard steel grade IC45/080A47;
French AFNOR standard steel grade CC45;
French NF standard steel grade C45;
Italian UNI standard steel grade C45;
Belgian NBN standard steel grade C45-1;
Swedish SS standard steel grade 1650;
Spanish standard steel grade F.114;
AISI/SAE standard steel grade 1045 in the United States;
International Organization for Standardization ISO standard steel grade C45E4
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