45 ogo ilow 8 3d 0.25 A860 wphy52 121090-564 FF alloy nchara ekpomoku adighi 83055
Ihe mgbochi carbon nke 4140 nchara allay nchara bụ 0.43%, ọdịnaya ndị ahụ bụ 0.15%, ihe ndị silfus ọdịnaya bụ 0.15%, na ọdịnaya molybdem bụ 0.8-1.10%. bụ 0.15-0.25% na ya mejupụtara ya. Ihe a nwere ike ịgwọ ọrịa na ị na-eme na ikuku, ma ọ bụ azụ na igwe polymen ma ọ bụ mmanụ.
Costm ASTM A193 na-ekpuchi ihe ndị mejupụtara kemịkalụ, Ngwongwo arụ ọrụ, ọgwụgwọ, a na-atụ aro mkpụrụ maka mkpụrụ osisi B7. Ọkwa B7 bụ ọkwa kachasị nke A193 Bolts ejiri rụọ ọrụ. A na-enweta ihe ọmụmụ B7 na mkpụmkpụ mkpụmkpụ, na-adị ngwa isi na n'ọma ahịa. A na-ejikarị ọkwa B7 Boll na njikọ FIP. Nkọwa a na-agụnye ngwa ngwa maka iji arịa ọrịa, valves, flanges, na ihe. A na-ejikarị ya emepụta ihe na-emepụta ihe, Fasteners, studs na studbolts na ụlọ ọrụ petrochemical na ụlọ ọrụ petrochemical. A na-ewukwa ndị na-ekiri ASTM A193 B7 na mkpa nke ọtụtụ nkọwapụta na akụrụngwa imewe.
