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The high quality Korea KS STS420J2 material is one of the more steel grades we supply, martensitic steel. STS420J2 is our main production grade, which has been approved by customers in many countries since its initial production, including our STS420J2 round bars, flat bar, forgings, fasteners, tubes, wires, strips, sheets & Plates, as well as a variety of profiles, professional high precision auto-lathe processing manufacturer of clinching fasteners, axes, standoffs, screws, studs, nuts, bolt, OEM parts and special shaped turning partsthe state of delivery includes quenched and tempered, annealed, machined semi-finished products, we also have strict management of the packaging, to avoid material damage from transportation. We are the best supplier of STS420J2 materials, and we are willing to develop together with customers from all over the world.

Also includes STS420J2 steel material norm, chemical composition, mechanical properties, datasheet, STS420J2 equivalent, heat treatment and temperature process of STS420J2, The peak hardness can be achieved, Contains all of the specification, welding properties, let us in STS420J2 this steel grade have a more comprehensive understanding, Download the full STS420J2 PDF version of this datasheet.

2015-08-10 15:52:56 Print this page

Chemical composition (wt.%)

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%)
0.26-0.40 Max 1.00 Max 1.00 Max 0.04 Max 0.03 12.0-14.0 Max 0.60

Mechanical Properties

Rp0.2 (MPa) Rm (MPa) Impact
KV (J)
A (%)
A Z (%) Delivery Hardness HB
348 (≥) 431 (≥) 34 31 12 Solution & Aging, Ann, Ausaging, Q+T 344

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