Dongguan Strait direct wholesale import: 60Simn5 spring steel / 60Simn5 spring steel bar / 60Simn5 spring steel rod / 60Simn5 spring steel bar, material assurance, timely delivery, eco-friendly materials, are welcome. Strait of spring steel stock company size and specifications are as follows: [] Spot spring steel specifications :0.1-10 .0 mm] [spring steel bar stock specifications :2.0-150mm Specification】 【spring steel stock specifications: Thickness from 0.1mm-3.0mm width 5mm-1000mm 【spring steel / roll] Spot Specification: Thickness 1.0-60.0mm Width: 1260mm Length: 8000mm [steel] Spot hard materials Specification: Thickness 0.15mm-3.0mm Width 5mm-600mm spot tablet specifications according to user needs, slitting, cutting, heat treatment and other processing services, special specifications, hardness, plus or minus tolerances, surface requirements can be customized production. and provide users with home delivery, and 17% of the votes logistics agency, with the goods with the original material and SGS certificate / MSDS / ROHS environmental report Strait direct wholesale of imported spring steel (Advantages): Has good elasticity \ resilience \ flexibility \ fatigue resistance \, after bending without cracking, high purity and uniformity, no trachoma decarbonization and after plating surface with excellent results, positive and negative tolerances uniform, high accuracy, stable performance and resistance to high (low) temperature quenching easily broken and so on merit. ================== =========================== Strait Metal Materials Co., Ltd. of Dongguan City in southern China is China's most professional supplier of metal materials, the company equipped a large-scale cutting, milling, vacuum heat treatment of aluminum shear slitting and other equipment, and has a large reserve center, call center, transport team, you can always provide customers with excellent products and the supply and service quick and easy. Domestic and foreign companies to the highest quality special steel, alloy steel and aluminum into the eastern, southern, central and other dozens of cities nationwide, in order to better serve the users in different industries, the use of advanced online stock transmission systems, effective and efficient logistics methods to ensure that any products ordered by customers in the shortest period of time can get accurate responses and stable and secure logistics and transport. Heart in the quality of the heart in the service philosophy is we believe, Channel Company to "high starting point, high-quality, high-quality" is our principle of service. Strait of people solemnly promise: not bad products, quality, and is willing to cooperate sincerely with friends at home and abroad for common development! Strait companies look forward with you hand in hand, a unified national hotline :400 -669-1516. ============================================= 60Simn5 spring steel chemical composition : Carbon C :0.55-0 .65 Si :1.00-1 .30 silicon manganese Mn :0.90-1 .10 Sulfur S: ≤ 0.050 Phosphorus P: ≤ 0.050 Chromium Cr: ≤ 0.25 Ni-Ni: ≤ 0.007 60Simn5 spring steel mechanical properties: Tensile strength σb ( MPa): ≥ 1127 (115) Yield strength σs (MPa): ≥ 980 (100) Elongation δ10 (%): ≥ 6 section shrinkage ψ (%): ≥ 30 Hardness: hot ≤ 302HB; Cold Drawn + Heat treatment ≤ 321HB; annealed steel ≤ 255 sample blank size / mm: specimen 60Simn5 spring steel heat treatment Heat treatment and microstructure specifications: Heat treatment specifications: quenching 820 ℃ ± 20 ℃, oil cooling; tempering 480 ℃ ± 50 ℃ ( special needs, ± 30 ℃). Delivery status: hot-rolled steel to heat treatment or heat treatment delivery, cold drawn steel to heat treatment delivery. 60Simn5 spring steel Features and Scope: 60Simn5 spring steel strength and hardness than other carbon structural steel to be high, but the flexibility is slightly lower, its revenue performance were similar with 65,70,75,80 steel, hardenability is not high, 7-20mm diameter coil springs and spring washers, spring ring. 60Simn5 spring steel for the manufacture of small cross-sectional size and strength to withstand the vibration of the spring is not too high, such as the spring chuck, precision machine screw, cutter, spiral roller bearing rings, railway vehicles, cars, tractors and general machinery on the flat springs and circular spiral springs and other uses such as spring steel wire and strip. ============================================= Spring quenching common defects and prevention measures: one, decarbonization (reduced service life) Zhu made using salt bath furnace atmosphere furnace or heating and rapid heating process. Second, insufficient hardness after quenching, non-martensite in larger quantities, the center appears ferrite (generation and residual deformation, reduced life), the choice of good hardenability of the material. Quenching agent to improve the cooling capacity of the spring into the coolant temperature should be above Ar3, appropriately increasing the quenching temperature. Three, overheating (fragility) to strictly control the forming and quenching temperature state, strengthen quenching of metallographic examination. Four, cracking (fragility, severely reducing life) controlled quenching temperature, quenching cooling to 250-300C, remove the air cooling, tempering time. ============================================= Strait Business philosophy: integrity ---- integrity of others, honest work, integrity and pragmatic ---- hardworking, practical, ambitious and mutually beneficial and win-win ----, ---- innovation model innovation and create business opportunities, innovative thinking faith is fundamental, pragmatism is premise, win-win is the goal, innovation is the driving force. http://www.metal01.com/ (Product Information security check) ======= [casting environmentally friendly materials to build Centennial Strait] =========