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Product Description

40cr/41cr4/wnr1.7035/1.7045/41cr4/42gr4/42c4/ 38cr4/41cr4/ 5140/scr440(h)/ scr440/(scr4)41cr4/scr4 r683 applications: used for manufacture big sized important quenched-and-tempered parts which request good toughness and high strength.such as top load shaft in heavy-duty machinery. 1.accessories with moderate-blow and moderate duty by hardening and tempering 2.accessories wearable and case-hard by high-frequency surface hardening 3.accessories with moderate-blow and over loading property by quenching and average tempering 4.accessories with low blow, wearable and over loading by quenching and lonnealing 5.transmission accessories with biggish measure and superior low-temperature flexibility by nitro cementation 6.plastic mouding meadium sized application. related specifications: germany din 41cr4 wnr1.7035/1.7045 41cr4/42gr4 france nf 42c4/ 38cr4/41cr4 great britain en 18 bs970 530a40 /530m40 41cr4 usa astm/ aisi/ sae 5140 japan jis scr440(h)/ scr440/(scr4) international iso 41cr4 scr4 r683 chemical composition (%): carbon 0.37-0.44 silicon 0.17-0.37 manganese 0.50-0.80 phosphorus 0.035 max sulphur 0.035 max chromium 0.80-1.10 process: eaf+lf+vod+forged or rolled+heat treatment(optional) size range: round: hot rolled: 8mm-500mm hot forged: 80mm-1500mm flat: hot rolled: thickness: 20-130mm width: less than 610mm hot forged: thickness:150-600mm width: up to 1600mm surface finishes: black, peeled(k12), cold drawn, turned & polished(h10, h11), precision ground(h9, h8) colour code: blue end test: ultrasonic test according to sep 1921-84 3c/c 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. marking: heat no. will be cold stamped and steel grade, diameter mm, length mm, and the manufacturer logo and weight kg is painted