Sichuan Liaofu Special Steel Company is one of the most experienced manufacturers and suppliers of 4140 steel bar in China. With over 20 years' experience, our factory offer high quality products made in China with competitive price. Welcome to contact us for wholesale service.
4140 steel bar
Sichuan Liaofu Special Steel Industry Co., Ltd has been in steel area for more than ten years, focus on producing 4140 42crmo4 4130 4135 scm440 25crmo4 1010 1020 1045 seamless steel tube, the branch office started in jiangshu on the business of steel pipes.

Product advantage highlights:
The standard is listed below
USA ASTM4140
JapanSCM440
Germany 42CRMO4 1.7725 steel bar
Hot rolled bar
Forged steel bar


42CrMo steel belongs to ultra high strength steel, with high strength and toughness, hardenability is also good.
Technical parameters
Specifications | |
Chemical component | C :0.38~0.45% Si:0.17~0.37% Mn:0.50~0.80% S :≤0.035% P :≤0.035% Cr:0.90~1.20% Ni:≤0.30% Cu:≤0.30% Mo:0.15~0.25%[ |
Mechanical property | Tensile strengthσb/MPa):≥1080 Yield strength(σs/MPa):≥930 Elongation (δ5/%):≥12 |
Stock 4140 steel bar

We adhere to the principle of "quality and service are the foundation", adhere to quality first, and win service. We not only provide users with satisfactory steel products, but also provide professional product consulting and after-sales service, which have been favored and praised by our customers. With the advancement of knowledge economy, we sincerely hope to cooperate with you for innovation and development.

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