The company [Qi Leeson] /// Main products are carbon tool steel: T7 T8 T8Mn T9 T10 T11 T12 T13 alloy tool steel: 9SiCr 8MnSi Cr06 Cr2 9Cr2 4CrW2Si 5CrW2Si 6CrW2Si 6CrMnSi2MolV 5Cr3MnlSiMolV cold work die steel: Cr12 Cr12Mo1V1 Cr12MoV Cr12MoV Cr5Mo1V 9Mn2V CrWMn 9CrWMn Cr4W2MoV 7CrSiMnMoV 6Cr4W3Mo2VNb 6W6Mo5Cr4V 65Nb 6Cr4W3Mo2VNb 6W6 6W6Mo5Cr4V 8Cr2S 8Cr2MnWMoVS CH-1 7CrSiMnMoV DS 6CrWMoV ER5 Cr8MoWV GD 6CrNiSiMnMoV GM 9Cr6W3Mo2V2 ICS LD (LD-1) 7Cr7Mo2V2Si LD-2 7Cr7Mo3V2Si hot die steel: 5CrMnMo 5CrNiMo 3Cr2W8V 5Cr4Mo3SiMnVA1 3Cr3Mo3W2V 5Cr4W5Mo2V 8Cr3 4CrMnSiMoV 4Cr3MnSiMoV 4Cr3Mo4SiV 4Cr5MoSiV 4Cr5MoSiV1 4Cr5W2Vsi 7Mn15Cr2Al3V2Wmo 012Al 5Cr4Mo3SiMnVAl 5Cr2 5Cr2NiMoVSi 50Nb CG-2 6Cr4Mo3Ni2WV CH95 3Cr3Mo2MnV ER8 4Cr3Mo2MnVB GR 4Cr3Mo2W4VtiNb HD 4Cr3Mo2NiVNb HD2 HM-1 3Cr3Mo3W2V HM-3 2Cr3Mo3VNb JCD RM2 5Cr3W5Mo2V TM 4Cr3Mo2WVMn Y4 4Cr5Mo2MnVNbB Y10 4Cr5Mo2MnVSi ZDM2 3Cr3Mo2WV plastic mold steel: 3Cr2Mo 3Cr2NiMo SM45 SM50 SM55 SM1CrNi3 SM3Cr2Mo SM2CrNi3MoAl1S SM4Cr5MoSiV SM4Cr5MoSiV1 SMCr12MolV1 SM2Cr13 SM3Cr17Mo SM4Cr13 SM45 SM48 SM50 SM53 SM55 SM3C2Ni1Mo 5NiSCa 5CrNiMnMoVSCa 8CrMn 8CrMnWMoVS B25 B30 LJ PCR 0Cr16Ni4Cu3Nb PMS 1Ni3Mn2MoAlCu S-136 spring steel features and applications 1. 65,70,85: to obtain a high strength hardness, yield ratio, but hardenability small, good heat resistance, low ability to withstand dynamic loads and fatigue loads is widely used, but more for the working temperature is not high, a small spring or less important large spring . As spring 65Mn ingredient cars, tractors, railway vehicles and general machinery is simple, hardenability and mechanical properties, process performance than steel decarburization good, but more sensitive to overheating, temper brittleness, quenching prone Crack low prices, a great amount. Manufacture of various small section flat spring, round spring, spring, etc., can make the valve spring, spring ring, shock absorbers and clutch springs, brake springs and the like. 2. 55Si2Mn, 60Si2Mn, 60Si2MnA silicon content (Wsi) high (upper limit of 2.00%), high intensity, good elasticity. Good temper resistance. Decarburization and graphitization. Hardenability is not high. The main spring steel type, very versatile. Manufacture all kinds of springs, such as cars, motorcycles, tractors leaf springs, coil springs, cylinder valve springs and spring some important work under high stress, severe wear spring. 55Si2MnB because boron, which significantly improved hardenability light, midsize car front suspension springs, Deputy spring. 55Si2MnB our self-developed steel, hardenability, mechanical properties, fatigue performance better than that of steel 60Si2Mn major manufacturers, the good small car leaf spring effect, can also be made of other medium-sectional dimensions of the leaf springs, coil springs . 3. 60Si2CrA 60Si2CrVA high strength spring steel. Hardenability, good heat treatment process performance. Because of the high intensity, should be promptly after spring roll treatment to relieve internal stress load big important manufacturing large springs. 60Si2CrA be prepared Turbine Seal spring, adjusting spring, condenser bearing springs, disc springs and other high pressure pumps. 60Si2CrVA also make a very important steel springs, such as conventional weapons extractors hook spring, spring breakers. 4. 55CrMnA 60CrMnA advantage is good hardenability, additional thermal processing performance, mechanical properties, resistance to decarbonization performance is also a big cross-section of various important springs, such as cars, locomotives large leaf springs, coil springs and the like. 5. 60CrMnMoA hardenability up in various existing spring steel. Mechanical properties, resistance to tempering stability is also good large-scale civil engineering, heavy vehicles, machinery and other large springs used. Plate thickness up to 35mm or more, round diameter of more than 60mm 6. 50CrVA small amount of vanadium to improve flexibility, strength, yield ratio and reduce resistance shells, refined grains, reducing the tendency to decarburization. The carbon content is small, ductility, toughness is good compared to other spring steel. High hardenability, fatigue performance of various important Hao coil springs, particularly suitable for high work stress amplitude fatigue performance demanding springs, such as valve springs, nozzle springs, cylinder expansion ring, valve springs, etc. 7. 60CrMnBA hardenability higher than 60CrMnA various other properties similar to larger leaf springs, coil springs, torsion springs. 8. 30W4Cr2VA high-strength heat-resistant spring steel. Good hardenability. High temperature anti-relaxation and thermal processing performance is also very good temperature resistant spring 500 ~ C or less, such as turbine main steam valve springs, steam seal spring, boiler safety valve spring, 400t boiler disc valve spring.