All 65Mn Harded Spring Steel Coil, GR1 GR2 GR5 Titanium Plate, Gr5 Titanium Alloy material of our company adopt the industry standard. Our products are exported to overseas and enjoy a good reputation in many overseas markets. You can buy with confidence. We always adhere to the principle of 'high quality and low price, customer first', and work together with colleagues from all walks of life with advanced ideas and good technology to cooperate in good faith and develop together. What we can achieve is because no one takes the cause of intelligent technology more seriously and seriously than us! As a rapidly developing production enterprise, our production capacity is increasing year by year.
4140 is a steel with a carbon content of only 0.38% and 0.43%. 4140 has good hardening properties. 4140 steel has round bars, square bars, slabs and hollow tubes. You can order products of any size, shape or quantity from numerous suppliers. 4140 steel is widely used in the manufacture of gears, bearings, machine shafts, rollers and bolts
The standard is listed below
USA ASTM4140
JapanSCM440
Germany 42CRMO4 1.7725 Hollow bar
42CrMo steel belongs to ultra high strength steel, with high strength and toughness, hardenability is also good.
Technical parameters
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Specifications |
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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%[ |
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Mechanical property |
Tensile strengthσb/MPa)：≥1080 Yield strength(σs/MPa)：≥930 Elongation (δ5/%)：≥12 |
Usage
4140 is widely used in petroleum, chemical, power station, boiler and other industries, used in the production of reactors, heat exchangers, separators, spherical tanks, oil and gas tanks, liquefied gas tanks, nuclear reactor pressure shells, boiler drums, liquefied petroleum gas cylinders , High-pressure water pipes of hydropower stations, turbine turbines and other equipment and components.
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About us
Our company has become a model for the success of peer companies based on the principles of "integrity, professionalism, pragmatism and efficiency" and the business philosophy of "high quality and low price". The company's customers are involved in various industries and have won their praise and trust, forming long-term cooperative relationships. We sincerely welcome friends from all over the world to visit our company.
Product shipping packaging
① Before leaving the factory: check whether the product meets the specifications and the quantity is correct.
② Packaging method: Large wooden squares are used to fix the product position, and each product is wrapped with foamed paper. Prevent the product from being damaged by collision and unnecessary loss during transportation.
③ Mode of transportation: sea transportation, land transportation, railway transportation
Our Service
We has become a leader in the industry of Qt Condition AISI 4140 Hollow Steel Bar. Based on the business philosophy of innovation and pragmatism, we rely on technological progress to continuously upgrade our products to meet customer requirements. We have abundant production process inspection, and professional and responsible ethics of production technicians, and our company has established a good reputation among many customer systems. We will be in line with the pragmatic cooperation attitude and flexible business strategy, welcome the new and old customers to visit us.