GB/T 1222 60Si2Mn round bars

GB/T 1222 60Si2Mn alloy structural steel, is a spring steel.GB/T 1222 60Si2Mn can be produced into hot rolled round bars and square bars, cold-drawing bars,forged bars. We henan KUNFENG can supply GB/T 1222 60Si2Mn all of shapes.

From the type of steel, we know, GB/T 1222 60Si2Mn material is mainly used to manufacturing spring. Thus in the general use, cold-drawing bars which owns smaller diameter is widely used.

is mainly used for railway vehicles,cars, tractors or heavy machinery.

According to the market needs, henan KUNFENG supply the oversea markets for GB/T 1222 60Si2Mn hot rolled round bars OD 6mm -80 mm and 60Si2Mn forged round bars OD 80 mm - 1200 mm, also GB/T 1222 60Si2Mn forged square bars OD 100- 1200 mm. The OD tolerance is about 0-3 mm and length tolerance is about 0-20 mm.

are usually produced under the followed procedures: EAF arc furnace + LF purify affinage + VDF + ingot steel(bottom gating /argon) + forged + annealing + black polishing (turnery) + GB/T6402-92 ΙΙ UT test + smooth edges with sawing .

chemical composition by %,maximum

mechanical properties

If you need , or other spring steel grades,pls be free to contact us.