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Special Alloy

UNS S41040

The high quality USA UNS S41040 material is one of the more steel grades we supply, Martensitic special steel. S41040 is our main production grade, which has been approved by customers in many countries since its initial production, including our S41040 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 S41040 materials, and we are willing to develop together with customers from all over the world.

Also includes S41040 steel material norm, chemical composition, mechanical properties, datasheet, S41040 equivalent, heat treatment and temperature process of S41040, The peak hardness can be achieved, Contains all of the specification, welding properties, let us in S41040 this steel grade have a more comprehensive understanding, Download the full S41040 PDF version of this datasheet.

2015-08-10 15:50:53 Print this page

Chemical composition (wt.%)

C(%) Si(%) Mn(%) P(%) S(%) Cr(%)
0.15 1 1 Max 0.04 Max 0.03 11.5-13.5

Mechanical Properties

Rp0.2 (MPa) Rm (MPa) Impact
KV (J)
A (%)
A Z (%) Delivery Hardness HB
615 (≥) 283 (≥) 44 43 42 Solution & Aging, Ann, Ausaging, Q+T 234

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