Other Minerals & Metallurgy

4140,42CrMo4,42CrMo,SCM440 cold drawn bar, cold finished bar, Dia: 2-100mm

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?Application

Cold Drawn steel round bar are widely used in machinery making, autombile making, railway, mine machinery, petoleum machinry, agricultural machinery and civil archtectue such as all kinds of shafts, screws, connecting rods, hardware tools, gears, standard parts, spanners fasteners, structural parts for automobile and agricultural machinery, outer and iner sleeves, rollers and balls for bearing making.

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Chemical composition:

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Standard | Grade | ? C | ? Cr | ? Mo | ? Si | ? Mn | P | S | Ni | Cu |
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GB | 42CrMo | 0.38-0.45 | 0.90-1.20 | 0.15-0.25 | 0.17-0.37 | 0.50-0.80 | 0.035 | 0.035 | 0.30 | 0.30 |
JIS | SCM440 | 0.38-0.43 | 0.90-1.20 | 0.15-0.30 | 0.15-0.35 | 0.60-0.90 | 0.030 | 0.030 | 0.25 | 0.30 |
ASTM | 4140 | 0.38-0.43 | 0.80-1.10 | 0.15-0.25 | 0.15-0.35 | 0.75-1.00 | 0.035 | 0.040 | / | / |
ENISO | 42CrMo4/1.7225 | 0.38-0.45 | 0.90-1.20 | 0.15-0.30 | ≤0.40 | 0.60-0.90 | 0.035 | 0.035 | / | / |
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Size range:

Dia: 2-100mm

Length Random Length, Fixed Length, etc.

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The tolerance:

Black, Peeled K12, Cold Drawn, Turned & Polished H10, H11, Precision Ground H9, H8

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Certificate of Quality: issued in English, in addition the normal terms, production process, the mechanical property yield strength, tensile strength, elongation and hardness, forged ratio, UT test result, Grain size, heat treatment methods and the sample of is shown on the Certificate of Quality.

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Packing: Plastic reel shaft, and bound, iron wire frame, the paper barrel etc




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