Ihe nkedo ọla na ihe nkedo ọla abụọ bụ ihe nkedo alloy sitere na ọla kọpa nke enwere ike ịwụ yankedo ájána usoro nkedo itinye ego. Brass bụ alloy mejupụtara ọla kọpa na zinc. A na-akpọ Brass nke ọla kọpa na zinc mejupụtara bụ ọla nkịtị. Ọ bụrụ na ọ bụ ụdị alloys dị iche iche mejupụtara ihe karịrị ihe abụọ, a na-akpọ ya ọla pụrụ iche. Brass bụ ọla kọpa nwere zinc dị ka isi ihe. Ka ọdịnaya zinc na-abawanye, ike na plasticity nke alloy na-abawanye nke ukwuu, mana akụrụngwa akụrụngwa ga-ebelata nke ukwuu mgbe ọ gafere 47%, yabụ ọdịnaya zinc nke ọla bụ ihe na-erughị 47%. Na mgbakwunye na zinc, ọla nkedo na-enwekarị ihe ndị na-ekekọta ihe dịka silicon, manganese, aluminum, na lead.
Ihe Brass na Bronze Anyị na-atụba
• Ọkọlọtọ China: H96, H85, H65, HPb63-3, HPb59-1, QSn6.5-0.1, QSn7-0.2
• USA Standard: C21000, C23000, C27000, C34500, C37710, C86500, C87600, C87400, C87800, C52100, C51100
• Ụkpụrụ Europe: CuZn5, CuZn15, CuZn35, CuZn36Pb3, CuZn40Pb2, CuSn10P1, CuSn5ZnPb, CuSn5Zn5Pb5
| Alloy | Ngwakọta kemịkalụ (%) | Ngwa | |||
| Ọla kọpa | Tin | Zinc | Ndị ọzọ | ||
| Egbe igwe | 88 | 10 | 2 | / | Bearings, Bushes |
| Ọla | 89 | 11 | / | / | Nri |
| Phosphor ọla | 89.5 | 10 | / | P=0.5 | Agba agba, Springs |
| Mgbịrịgba ọla | 75-80 | 20-25 | / | / | Mgbịrịgba |
| Admiralty ọla | 70 | 1 | 29 | / | Ndị na-agbanwe ọkụ |
| Ịgba ígwè | 85 | / | 15 | / | Mkpụrụ ego |
| Bras ụgbọ mmiri | 60 | 1 | 39 | / | Ngwa mmiri |
| Katrij ọla | 70 | / | 30 | / | Ihe osise miri emi |
| Igwe igwe elekere | 58-60 | / | 38-40 | Pb=1.5-2.5 | Akụkụ elekere na ihe osise |
| Aluminom ọla | 76 | / | 22 | Al=2 | Ngwa mmiri |
Ọla nkedo nwere ihe arụrụ arụ dị elu karịa ọla, mana ọnụ ahịa ya dị ala karịa ọla kọpa. A na-ejikarị ọla kọpa eme ihe maka ebumnuche izugbe na-ebu bushes, bushes, gia na akụkụ ndị ọzọ na-eyi akwa na valvụ na akụkụ ndị ọzọ na-eguzogide corrosion. Brass nwere mgbochi iyi siri ike. A na-ejikarị brass eme valvụ, ọkpọkọ mmiri, njikọ ọkpọkọ maka ikuku ikuku n'ime na nke mpụga, na radiators.
Àmụmà nke ihe nkedo ọla na ihe nkedo ọla:
• Mmiri dị mma, nnukwu mbelata, obere okpomọkụ kristal
• Na-enwekarị mbelata nke uche
• Ihe nkedo ọla na ọla kọpa nwere ezigbo nguzogide eyi na nguzogide corrosion
• Njirimara nhazi nke ọla na nkedo ọla yiri nkedo ígwè
