Metal Materials Co., Ltd., Dongguan City, Strait shelf: 65Si7 spring steel wire / 65Si7 spring steel rod / 65Si7 spring steel bar, complete specifications, adequate inventory, reasonable prices Strait companies spring steel stock Product Dimensions and specifications are as follows: [] Spot spring wire Specifications :0.1-10 .0 mm [spring steel bar stock specifications :2.0-150mm] [] specifications Spot spring steel Specification: Thickness from 0.1mm-2.00mm Width 5mm-1000mm 【spring steel / roll] Spot Specification: Thickness 1.0-60.0 mm Width: 1260mm Length: 8000mm [steel] Spot hard materials Specification: Thickness 0.15mm-2.00mm Width 5mm-600mm spot size tablet according to user needs, slitting, cutting, heat treatment and other processing services, special specifications, hardness, positive and negative 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 Certificate and SGS / MSDS / ROHS environmental report Strait direct wholesale of imported spring steel (product advantage) : It has good elasticity \ resilience \ flexibility \ fatigue resistance \, after bending without cracking, high purity and uniformity, no trachoma after plating surface decarburization and excellent results, positive and negative tolerances uniform, high accuracy , stable performance and resistance to high (low) temperature quenching easily broken and so on merit. ================================== ============== 65Si7 Basic information 65Si7 spring steel spring steel product chemical composition (mass fraction) /% Carbon C (%): 0.52 ~ 0.70 | sulfur SI (%): 1.60 ~ 2.00 | Manganese MN (%): 0.60 ~ 0.95 | chrome CR (%): ≤ 0.35 | P P (%): ≤ 0.0030 | 65Si7 spring steel mechanical properties of the sample size product: yield strength liao (Mpa): ≥ 1568 (160 ) | Conditions yield strength 0.2 (Mpa): ≥ 1372 (140) | Reduction (%): ≥ 5 | Impact energy: ≥ 20 | 65Si7 spring steel products Delivery status: hot, ≤ 321HB; Cold Drawn + heat treatment , ≤ 321HB 65Si7 spring steel Heat treatment and microstructure specifications Product Heat Treatment Specification: hot-rolled steel to heat treatment or heat treatment delivery, cold drawn steel to heat treatment delivery. Microstructure: quenching 870 ℃ ± 20 ℃, oil cooling tempering 440 ℃ ± 50 ℃ (special needs, ± 30 ℃). 65Si7 spring steel Product Features: 65Si7 spring steel scope for railway vehicles, cars, tractors and motorcycles on the damping spring and coil springs, cylinder valve spring, electric locomotive l bow hook springs, valve springs, but also can be used as heat for use below 250 ℃ springs. ================================================== == alloy spring steel Description: alloy spring steel is used to manufacture spring or other elastic parts of steel. The spring is generally in the work under alternating stress, a common form of fatigue damage, therefore, spring steel alloy must have a high yield point and the yield ratio (σs / σb), the elastic limit, fatigue resistance, to ensure that there is a spring sufficiently elastic deformation capacity and can withstand a greater load. Meanwhile, alloy spring steel also requires a certain degree of plasticity and toughness, hardenability certainly not easy decarbonization and easy to overheat. Spring also requires a special heat resistance, corrosion resistance, or in a long time stable elasticity. Carbon steel and high carbon steel springs are available for use, but because of its low hardenability and strength can only be used to make small cross-section, a smaller force of a spring. Alloy spring steel can manufacture large cross-section, the higher the yield limit of the important spring. ================================================== == Strait Metal Materials Co., Ltd. of Dongguan City in order to better serve different sectors of users, faster and more convenient to provide customers with the products, special steel mills at home and abroad over the years has close partnership to achieve stable supply channel, smooth, ripe, in addition to providing common specifications material stock, the company has a professional machining center, according to the user's specific needs set rolling, slitting, machining, heat treatment, logistics, technical support, import and export services. Unified national sales hotline :400 -669-1516 ensure that all customers can be ordered by any of the products in the shortest possible time to obtain accurate responses and stable and secure transport and logistics, committed to making the country's production and processing enterprises of the "procurement" easier. Strait company of "quality above all else, the credibility to win customers" is our eternal guiding ideology, "the heart of quality, heart service" is we believe in business philosophy of "high starting point, high-quality, high-quality" is our principle of service, the company is willing Straits Metals with friends at home and abroad sincere cooperation and common development! ================================================== == Strait corporate mission: to locate "high, fine, sharp", and constantly introduce new products to meet customer needs. Channel Development Goals: to rely on science and technology, aimed at domestic and foreign markets. Strait company's business philosophy: full-service customers. Love: Love is our country, the company, the team's basic attitude and love so that we are not alone. Innovation: Innovation is our products, technologies, services relentless pursuit, we find that the market is a fundamental innovation market. http://www.sk5sk7.com (Product Information security check) ======= [casting environmentally friendly materials to build Centennial Strait] =========