Material Name: spring steel Standard: GB / T1222-2007 ● Features and Scope: 85 # steel strength and hardness than other high-carbon steel to high mechanical properties of 1030, but slightly elastic to provide material reports 1030, its revenue performance and 65 , 70,75,80 steel were similar, not high hardenability, the critical quenching in oil diameter of 9-23mm. No. 85 steel for the manufacture of small cross-sectional size and strength to withstand vibration spring is not too high, such as railway vehicles, cars, tractors and general machinery, flat springs and round on the coil spring and the other uses a spring steel wire and strips and the like. The highest carbon content of high-carbon structural steel 1030 wholesale, strength hardness than other high-carbon steel, but slightly lower elasticity 1030, but slightly lower elasticity, other performance 65.70.75.80 steel phase approximation. Hardenability is not high. Railway Vehicle. Flat plate springs circular spiral spring steel wire. Strips etc. Chinese name 10F tensile strength σb (MPa): ≥315 (32) Yield strength σs (MPa): ≥185 (19) Elongation δ5 (%): Features and Scope of ≥33 ● 10F: 10F for manufacturing You need a good plastic parts, such as gaskets and washers; also suitable for making the core hardness of less demanding carburizing and cyanide parts, sleeves, short axis, and other gear. 10F steel, high-quality carbon steel. This steel is less intense, and very high ductility and toughness, good punching, tensile and flexural properties, weldability, and can be made of plastic to be good parts: tubes, gaskets, unit strength less demanding bleeding heart carbon and cyanide parts; sleeve, short axis, the clutch plate. Recommended heat treatment / ℃: 930 normalizing normalizing recommend holding holding time ≤30min, air-cooled; quench recommended holding time ≤30min, 70.80 and 85 steel oil cooler, the remaining steel cooling; tempering recommend holding time ≤1h. ● 10F Mechanical Properties: The tensile strength σb (MPa): ≥315 (32) Yield strength σs (MPa): ≥185 (19) Elongation δ5 (%): ≥33.10F10F widely used: 10F Supply specifications : Diameter 1.0 ---- 200mm side: 1.0 * 1.0 --- 60 * 60 light flat iron: 1.0 --- 100mm Hexagonal: 4.0 ------- 26mm 1030 on the edge of the mechanical properties, 1030, Suzhou, By the same date with Metal Materials Co., Ltd. Suzhou. Suzhou, with Metal Materials Co. (www.szrtjs.com) strong, credible, in Suzhou of metal building materials industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Suzhou, and you work with into the brilliant, for a better future!