Ngwakọta kemịkalụ maka TB/T 1979 Q450NQR1 STEEL Plate (Heat Analysis Max%)
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Ihe mejupụtara kemịkalụ isi nke Q450NQR1
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C
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Si
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Mn
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P
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S
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Ku
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Cr
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Ni
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0.12
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0.75
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1.50
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0.025
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0.008
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0.20-0.55
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0.30-1.25
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0.12-0.65
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Isi uru nke ngwakọta kemịkalụ nke Q450NQR1 ígwè bụ na a na-eji ígwè carbon nkịtị mee ya ma nwee obere ọla kọpa, nickel, na ihe ndị ọzọ na-eguzogide corrosion. Ọ nwere njirimara nke ike ígwè, ductility, akpụ, ịgbado ọkụ, eyi iguzogide, elu okpomọkụ, ike ọgwụgwụ na na; Mgbochi ihu igwe bụ 2 ~ 8 ugboro nke carbon ígwè nkịtị, na mkpuchi mkpuchi bụ 1.5 ~ 10 ugboro nke ígwè carbon nkịtị, nke a pụrụ iji mee ihe dị nro, nke na-enweghị isi ma ọ bụ dị mfe. Nchara ahụ nwere njirimara nke mgbochi nchara, nguzogide corrosion, ogologo ndụ ogologo ndụ, mbelata na mbelata oriri, nchekwa ọrụ na nchekwa ike, nke bara uru nye ndị na-emepụta ihe na ndị ọrụ.
Isi njirimara nke ihe Q450NQR1 na-ezo aka na obere ihe nhazi alloy nwere mkpuchi mgbochi nchara na mgbochi corrosion ikuku, nke enwere ike iji rụọ ọrụ nchara dịka ụgbọ ala, àkwà mmiri, ụlọ elu, na arịa. E jiri ya tụnyere carbon ígwè, igwe ihu igwe nwere nguzogide corrosion ka mma na ikuku. E jiri ya tụnyere igwe anaghị agba nchara, igwe ihu igwe nwere naanị obere ihe ndị na-eme ka alloying, dị ka phosphorus, ọla kọpa, chromium, nickel, molybdenum, niobium, vanadium, titanium, wdg. Ngụkọta ego nke alloying ọcha bụ naanị pasent ole na ole, n'adịghị ka igwe anaghị agba nchara. ígwè, nke ruru 100%. Pasent iri, ya mere ọnụahịa ahụ dị ntakịrị.
