Metal Materials Co., Ltd., Dongguan City, Strait shelf: Import SUP7 spring steel / spring steel imports SUP7 / import SUP7 spring steel bar, complete specifications, adequate inventory, reasonable prices Strait companies spring steel stock Product Dimensions and specifications are as follows: [spring wire] Spot Size :0.1-10 .0 mm [spring steel bar stock specifications :2.0-150mm】 【】 Specification spot spring steel Specification: Thickness from 0.1mm-2.00mm 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-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 advantages ): 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, precision high performance, stable resistance to high (low) temperature quenching easily broken and so on merit. ================================= ========== SUP7 Basic information SUP7 spring steel spring steel product chemical composition (mass fraction) /% Carbon C (%): 0.50 ~ 0.70 Sulfur SI (%): 1.50 ~ 2.00 Manganese MN (%) : 0.70 to 1.00 P P (%): ≤ 0.035 Sulfur S (%): ≤ 0.035 Chromium CR (%): ≤ 0.035 Ni-Ni: ≤ 0.35 Copper Cu: ≤ 0.25 SUP7 spring steel mechanical properties: SUP7 tensile strength spring steel Bao (MPa): ≥ 1274 (130) SUP7 liao spring steel yield strength (MPa): ≥ 1176 (120) SUP7 spring steel elongation: ≥ 5 SUP7 spring steel section shrinkage: ≥ 25 SUP7 Spring steel Hardness: hot , ≤ 321HB; Cold Drawn + heat treatment, ≤ 321HB SUP7 spring steel Heat treatment and microstructure specifications: Heat treatment specifications: quenching 870 ℃ ± 20 ℃, oil cooling; tempering 480 ℃ ± 50 ℃ (special needs, ± 30 ℃) . Delivery status: hot-rolled steel to heat treatment and non-treatment delivery, cold-drawn steel is heat treatment delivery. SUP7 spring steel Features and Scope: SUP7 spring steel is widely used silico-manganese spring steel, strength, flexibility and hardenability than slightly higher. For railway vehicles, cars, tractors and industrial production, bear a greater load on the flat springs or less than 30mm diameter coil spring. Also suitable for production of working temperature below 250 ℃ heat-resistant non-corrosive media springs or alternating load and work under high stress important roll of large springs. =========================================== Strait metal SUP7 spring steel - Product Description Main purpose: an automatic lathe processing, metal stamping parts processing; 2. electronics industry, light fiber connectors. CD-ROM drive, scanner, medical equipment; 3 household appliances, instrumentation industries. 4 office equipment (computers, copiers, cameras, fax machines, etc.); 5 watch components, glasses; 6. electronic terminal pin. timer, carburetor; 7. decorations, lights jewelry, automobiles, motorcycles, chain; 8. sweep clean cars with Toys; 9 pens, handbags accessories, belt buckle, fishing gear; 10 studs. screws, nuts, fittings, spring seat, etc. ================= ========================== philosophy: focus on professional quality, respect for the customer characteristics, focusing on long-term development, the pursuit of win-win cooperation. Development vision: a short step thousand miles, build a trickle has reached the ocean, aims to become a famous brand. Services: the services to win market, quality customer satisfaction. Team management: respect talent, professionalism, Strait of people with the company development. Centennial Strait ========= [build] ========= [casting environmentally friendly materials have been outwit not bad products]: Channel Metal Materials Co., Ltd., Dongguan City, the professional management of a clear core, vigorously providing customers with high quality, low-cost high-quality steel products, like our commitment to quality, we provide not only quality products, but also offer a wide range of advice and help long-term, efforts to reduce as much as possible your costs, improve your product quality.