Spring steel is used to manufacture spring or other elastic components of steel. Divided into high-quality carbon spring steel, alloy spring steel II. Specific grades are: 65,70,85,65 Mn, 55Si2Mn, 55Si2MnB, 55SiMnVB, 60Si2Mn, 60Si2MnA, 60Su2CrA, 60Si2CrVA, 55CrMnA, 60CrMnA, 60CrMnMoA, 50CrVA, 60CrMnBA, ... SK4SK5SK7 SKS51 S55C S65C C75 C9565MnSUP9SUP10 T8T8AT10T10A
Specification: thickness from 0.025mm-2.50mm, width 3mm-365mm,
Hard steel material thickness 0.05mm-2.50mm, width 3mm-330mm. Hard steel material surface can be polished, blue, yellow handle.
Spring strip steel products of high precision, good wear resistance, toughness, quality and stability.
Steel products for shock absorber valves, diaphragm spring clutch, air compressor valves, knitting machine parts, sinker, Ha negative, knitting needles, Sinker, a variety of printing scraper, circular knives, etc., hardware stamping shrapnel, spring, spring, drawing, anti-spring quality requirements of products. Size according to customer requirements can be sub-section, providing material evidence SGS report
Spring steel Si-Mn alloy system 55Si2Mn high strength, good elasticity, good resistance to tempering stability; but easy to decarburization and graphitization. With B significantly improved hardenability steel main spring steel class, very versatile and can produce a variety of medium cross-section <25mm important springs, such as cars, tractors spring, spiral spring 60Si2Mn 55Si2MnB 55SiMnVB Cr system 50CrVA good hardenability , tempering high stability, low tendency to decarburization and graphitization; good mechanical properties, there is some corrosion resistance, including V, Mo, W and other elements of the spring has a temperature resistance; as are high quality steel Therefore, to further improve the fatigue properties of a large heavy load for the manufacture of large size (50 ~ 60mm) of the important spring, such as engine valve springs, conventional weapons and bombs to take the hook spring, spring breakers; thermal springs, such as boiler safety valve spring , nozzle springs, cylinder expansion ring, etc.
60CrMnA 60CrMnBA 60CrMnMoA 60Si2CrA 60Si2CrVA1) carbon spring steel (ie, non-alloy spring steel) its cheap but poor hardenability, smaller cross-section for non-critical spring, which
SK5 SK7 65,65 Mn most commonly used. 2) Alloy spring steel according to the different types of main alloying elements increase can be divided into two categories: Si-Mn spring steel and Cr Department of Department of spring steel. The former high hardenability than steel, the price is not very expensive, so the most widely used cross-sectional dimension greater than 25mm of various types of springs, 60Si2Mn is the typical representative; hardenability which is better, overall mechanical high-performance, easy spring surface decarburization, but the price is relatively high, generally used for important cross-section of a larger size spring, 50CrVA is the typical representative.
More detailed information on spring steel
4. Heat-treated spring steel heat treatment depends on the characteristics of the spring forming method of processing, can be divided into hot and cold formed springs springs forming two categories: 1) hot forming spring section size> 10mm variety of large and complex shape of the hot springs are used shape (such as hot-rolled, hot rolled), such as automobiles, tractors, trains the spring and coil spring. The simple process route: flat or round the next bend or winding material → heating → → quenching tempering temperature shot peening surface treatment, using state of the organization's care for the tempered body. Shot peening can strengthen and improve the surface quality of the spring surface, significantly improved fatigue performance.
2) cold forming spring section size <10mm in a variety of small springs can be used cold forming (such as cold roll, cold-rolled), such as the instrument of the coil spring, spring, and spring and so on. Spring before the forming of such cold pull (cold), quenching or tempering in lead bath temperature after quenching, cold drawing temperature (rolling) to strengthen; then the cold forming process, this process will further strengthen the metal, but also produced a larger internal stress and brittleness, it should be low to the subsequent stress annealing (usually 200 ~ 400 ℃).
Specification: thickness from 0.025mm-2.50mm, width 3mm-365mm,
Hard steel material thickness 0.05mm-2.50mm, width 3mm-330mm. Hard steel material surface can be polished, blue, yellow handle.
Spring strip steel products of high precision, good wear resistance, toughness, quality and stability.
Steel products for shock absorber valves, diaphragm spring clutch, air compressor valves, knitting machine parts, sinker, Ha negative, knitting needles, Sinker, a variety of printing scraper, circular knives, etc., hardware stamping shrapnel, spring, spring, drawing, anti-spring quality requirements of products. Size according to customer requirements can be sub-section, providing material evidence SGS report

Spring steel Si-Mn alloy system 55Si2Mn high strength, good elasticity, good resistance to tempering stability; but easy to decarburization and graphitization. With B significantly improved hardenability steel main spring steel class, very versatile and can produce a variety of medium cross-section <25mm important springs, such as cars, tractors spring, spiral spring 60Si2Mn 55Si2MnB 55SiMnVB Cr system 50CrVA good hardenability , tempering high stability, low tendency to decarburization and graphitization; good mechanical properties, there is some corrosion resistance, including V, Mo, W and other elements of the spring has a temperature resistance; as are high quality steel Therefore, to further improve the fatigue properties of a large heavy load for the manufacture of large size (50 ~ 60mm) of the important spring, such as engine valve springs, conventional weapons and bombs to take the hook spring, spring breakers; thermal springs, such as boiler safety valve spring , nozzle springs, cylinder expansion ring, etc.
60CrMnA 60CrMnBA 60CrMnMoA 60Si2CrA 60Si2CrVA1) carbon spring steel (ie, non-alloy spring steel) its cheap but poor hardenability, smaller cross-section for non-critical spring, which SK5 SK7 65,65 Mn most commonly used. 2) Alloy spring steel according to the different types of main alloying elements increase can be divided into two categories: Si-Mn spring steel and Cr Department of Department of spring steel. The former high hardenability than steel, the price is not very expensive, so the most widely used cross-sectional dimension greater than 25mm of various types of springs, 60Si2Mn is the typical representative; hardenability which is better, overall mechanical high-performance, easy spring surface decarburization, but the price is relatively high, generally used for important cross-section of a larger size spring, 50CrVA is the typical representative.
More detailed information on spring steel
4. Heat-treated spring steel heat treatment depends on the characteristics of the spring forming method of processing, can be divided into hot and cold formed springs springs forming two categories: 1) hot forming spring section size> 10mm variety of large and complex shape of the hot springs are used shape (such as hot-rolled, hot rolled), such as automobiles, tractors, trains the spring and coil spring. The simple process route: flat or round the next bend or winding material → heating → → quenching tempering temperature shot peening surface treatment, using state of the organization's care for the tempered body. Shot peening can strengthen and improve the surface quality of the spring surface, significantly improved fatigue performance. 2) cold forming spring section size <10mm in a variety of small springs can be used cold forming (such as cold roll, cold-rolled), such as the instrument of the coil spring, spring, and spring and so on. Spring before the forming of such cold pull (cold), quenching or tempering in lead bath temperature after quenching, cold drawing temperature (rolling) to strengthen; then the cold forming process, this process will further strengthen the metal, but also produced a larger internal stress and brittleness, it should be low to the subsequent stress annealing (usually 200 ~ 400 ℃).