Through years of hard work, we now have a strong economic strength, a superb technical team and good after-sales service. We have not only achieved a good reputation in the AMS 6514 Maraging 300 steel Round Bars, 316 Stainless Steel Tube, 253MA Stainless Steel Bar market, but also won a large number of partners. It truly is our responsibility to fulfill your requirements and successfully provide you. We can guarantee all our products. Our firm promises all consumers with the first-class products as well as most satisfying post-sale services. In the era of speed and change, our company is born for high-quality, and scientific development.
Powerful Solutions For Business Growth
5140r steel is one of the most widely used steels in mechanical manufacturing industry. After tempering treatment, it has good comprehensive mechanical properties, good low temperature impact toughness and low notch sensitivity. Good steel hardenability, when water quench hardening to Ф 28 ~ 60 mm, when oil quenching hardening to Ф 15 ~ 40 mm. This kind of steel is suitable for cyanidation and high frequency quenching in addition to tempering treatment. The cutting performance is good, when the hardness is 174 ~ 229HB, the relative machinability is 60%
ASTM 5140/JIS SCR440
DIN 41CR4
Technical parameters
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Specifications |
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Chemical component |
C:0.37~0.44 |
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Mechanical property |
Tensile strengthσb/MPa)：≥810 Yield strength(σs/MPa)：≥785 Elongation (δ5/%)：≥9 |
APPLICATION:
AISI 5140 steel tube described is utilized for manufacturing mechanical parts that endure medium load and speed, such as steering knuckles, automobile rear shafts, gears, spindles, oil pump rotors, etc., after tempering and quenching at different temperatures to meet specific performance requirements.
Stock tube
Product Quality Assurance
We strictly carry out the quality system iso9001:2000 standard during production process, adopts advanced modern production management and quality management, to obtain high quality steel pipe. After acid pickling, cold rolling, cold drawn, and then adopt advanced technology for high temperature heat treatment (NBK status) to produce steel pipes with surface: bright, smooth, high precision, high polish, both inside and outside wall without oxidation layer, internal and external wall of high precision, mechanical performance fits well in any Angle bending, and can bear high pressure, cold bending deformation, flaring, flattening, tensile and other require ments, our steel tube doesnot burst when cold bending, no cracks, no oxide layer an.
About us：
We are a professional manufacturer of various steel products. Steel products include carbon steel, alloy steel, high-speed steel, etc. At the same time, we have thousands of different specifications and shapes of steel products. Such as steel blocks, steel bars, steel pipes, steel plates, hollow steel and so on. Our company has excellent quality and affordable prices, which are sold at home and abroad. Welcome global buyers to our factory
Our Service
With this motto in mind, we've got develop into amongst one of the most technologically innovative, cost-efficient, and price-competitive manufacturers for Seamless Steel Tube SCR435 SCR440 5140 5135 Steel Tube. Our company has mastered a number of world-class core technology and product technology, and has a high reputation and established a good reputation in the industry. Our factory direct sales have significant advantages over other manufacturers in terms of price, quality, delivery time, and after-sales service.