AISI 1010 / S10c Carbon Steel Tube – Mechanical Tubing – Seamless Steel Pipe
1020 / S20C Hydraulic Cylinder Tube , High Precision Skiving Pipe – Honed Steel Tubing
27SiMn seamless cold drawn steel tube, with black annealed out surface
4145H Modified Alloy Steel Round Bar, Hot Rolled Steel Bar
QT AISI 8260 Hot Rolled Steel Round Bar Size 10 - 350mm For Automobile
Categories：Steel Bars
Model No.:SUP9
Width: 40-200mm
Thickness: 6-30mm
Length: as your request.
SUP9 Hot Rolled Spring Steel Flat Bar
Products Details
Spring steel refers to steel due to the elasticity in the quenched and tempered condition, and specifically for the manufacture of springs and elastic components. Spring steel depends on its ability to elastically deform, i.e., within the prescribed range, the ability to withstand a certain elastic deformation so that the load does not occur in the permanent deformation after the load is removed.Spring steel flat bar is especially used for laminated leaf spring,Agricultural machinery springs,Chain products.
Quality Standard
JIS G4801 2005 Spring Steels
Chemical Composition(%)
Steel Grade | C | Si | Mn | P | S | Cr |
SUP9 | 0.52-0.60 | 0.15-0.35 | 0.65-0.95 | 0.030 max | 0.030 max | 0.65-0.95 |
Mechanical Properties(Quenched and Tempered Condition)(T=20°C if not differently stated)
Steel Grade | Tensile Strength Rm (Mpa) | Yield Strength Rp0.2 (Mpa) | Elongation A5 (%) | Area Reduction Ratio C (%) |
SUP9 | 1225 min | 1080 min | 9 min | 20 min |
Heat Treatment
Steel Grade | Quenching Temperature (°C) | Media | Tempering Temperature (°C) |
SUP9 | 830-860 | oil | 460-510 |
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ASTM 1045 Hot Rolled Steel Bar , Carbon Steel Round Bar / Rod 10 - 350mm
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