ASTM 4140 JIS SM440 DIN 42CrMo4 Carbon Alloy Solid Round Bar Round Steel. We are specialized in the production and processing of metal raw material, such as carbon steel, galvanized, stainless steel, hot rolled/cold drawn steel products, Aluminum/Zincalume, copper products. We can supply different bars, round/square/rectangular tubes, steel strips/coils/sheets/plates, GI, PPGI, PPGL, wear-resistant steel, tin-plates, steel shapes, wires etc. We provide customized service. We can support clients to do quality inspection if needed. We can provide competitive price, good quality control, purchasing advice. Welcome consulting and ordering!
8mm-650mm or as customers' request
hot rolled/cold rolled/cold drawn/forged
1-12m/customized
ASTM (1005, 1006, 1008, 1010, 1015, 1020, 1025, 1030, 1035, 1040, 1045, 1050, 1055, 1060, 1065, 1070, 1080, 1084, 1016, 1022), DIN (Ck10, Ck15, Ck22, Ck25, Ck30, Ck35, Ck40, Ck45, Ck50, 30Mn4, 40Mn4), BS (040A04, 095M15, 045M10, 080A40, 045M10, 080M50), GB (Q195, Q235, Q345)
| d/a (mm) | 5.5-7 | 7-20 | 20-30 | 30-50 | 50-80 | 80-110 | 110-150 | 150-190 | 190-250 |
|---|---|---|---|---|---|---|---|---|---|
| (mm) | +0.30 -0.30 | +0.35 -0.35 | +0.40 -0.40 | +0.50 -0.50 | +0.70 -0.70 | +1.0 -1.0 | +1.3 -1.3 | +2.0 -2.0 | +2.5 -2.5 |
| Shape | Hot-rolled | Cold-drawn | Forged |
|---|---|---|---|
| Round | 20mm-300mm | 16mm-70mm | 250mm-800mm |
| Square | 20*20mm-130*130mm | 10*10mm-80*80mm | Your requirements |


From basic to complex: Steel Coil, Steel Round Bars, Steel Flat Bars, Steel Angles to Square Rectangular Tube, we offer a full range of steel solutions.
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Main Product:
Steel Angles,
Steel Flat Bars,
Steel H-Beams,
Square Rectangular Tube,
Steel Coil,
Steel Channels