Dia 2-500 Mm Grinding bar, Cold Finished Bar 4140 / 42CrMo4 /
42CrMo / SCM440
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.
Related specification:
Australia AS 1444-2007 4140
Germany DIN 17212 W.Nr. 1.7223 Type 41CrMo4
DIN 17200 1654 W.Nr 1.7225 Type 42CrMo4
EN10083 11991 1.7225 42CrMo4
Great Britain BS970 1955 EN19A
BS970 Part 3:1991708M40 or 709M40 or 708 A 42
France AFNOR 40 CD 4 , AFNOR 42 CD 4
Italy: UNI 38 CrMo 4 KB , UNI 40 CrMo 4 , UNI G 40 CrMo 4
USA ASTM A29A29M91 4140
Japan JIS G 4103 SNCM4
JIS G 4105 SCM440
Chemical composition:
| Standard | Grade |
C |
Cr |
Mo |
Si |
Mn | P | S | Ni | Cu |
| ≤ |
| 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 | / | / |
Size range:
Dia: 2-500mm
Length Random Length, Fixed Length, etc.
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.
Packing: Plastic reel shaft, and bound, iron wire frame, the paper barrel
etc
Please feel free to contact us again if you have any further
questions. We look forward to receiving an order from you.
