Diameter 2-100 mm Cold Finished Bar 4140 / 42CrMo4 / SCM440 Alloy Steel

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

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

AMS 6378, AMS 6379 , AMS 6381B , AMS 6382 , AMS 6382G , AMS 6390 , AMS 6390A , AMS 6395

Germany DIN 17212 W.Nr. 1.7223 Type 41CrMo4

DIN 17200 1654 W.Nr 1.7225 Type 42CrMo4

DIN 17200 W.Nr 1.7227 Type CrMoS4

EN10083 11991 1.7225 42CrMo4

Great Britain BS970 1955 EN19A

BS970 Part 3:1991708M40 or 709M40 or 708 A 42

Sweden: SS 2244

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

ASTM A322 4140

ASTM A331 4140 cold finish

SAE 4140, SAE J404 , SAE J412 , SAE J770 , UNS G41400

ASTM A331 , ASTM A505 , ASTM A519 , ASTM A547 , ASTM A646 ,

MIL SPEC MILS1 6974 ,

Japan JIS G 4103 SNCM4

JIS G 4105 SCM4

JIS G 4105 SCM440

Chemical composition:

Size range:

Dia: 2-100mm

Length Random Length, Fixed Length, etc.

The tolerance:

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

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.