A283 Ọkwa B, A283GrB, A283Gr.B, A283 Ọkwa B ígwè, A283 Gr B ígwè efere
Nabata ọkọlọtọ: ASTM A283/A283M
Gnee ígwè ọkwa: A283 Ọkwa A, A283 Ọkwa B, A283 Ọkwa C, A283 Ọkwa D
,A283GrA, A283GrB, A283GrC, A283GrD, ọkwa ígwè.
A283 ọkwa B ígwè efere
A283 Ọkwa B ígwè efere emere ga-adaba n'ihe chọrọ nke ugbu a nkọwapụta a6/ a6m. N'ime usoro a, A283 Ọkwa B ga-abụ otu ma ọ bụ karịa n'ime usoro ndị a: oghere oghere, ikuku oxygen ma ọ bụ ọkụ eletrik.
A283 ígwè ọkwa na-ekpuchi akara anọ na A283 Ọkwa A, A283 Ọkwa B, A283 Ọkwa C, na A283 Ọkwa D nke carbon ígwè efere nke structural ngwa n'ozuzu.
Gnee steel ọkọnọ A283 ọkwa B dị ala na nke etiti tensile ike carbon steel mbupụ ahịa esenidụt, uru anyị bụ ịnye ndị ahịa anyị nnukwu efere nchara nke kacha mma yana anyị nwekwara ike ikwe ka ndị ọzọ nyochaa ngwa ahịa anyị na igwe igwe anyị. , ọmụmaatụ, GL, DNV, TUV, CE, LR, BV na na.
| Carbon, max | % | Manganese, max | % | Silikoni, max | % | |
| Ọkpụrụkpụ niile | 0.17 | Nyocha ngwaahịa | 0.90 | Nyocha ngwaahịa | 0.15-0.40 | |
| Phosphorus kacha elu | % | Sulfur max | % | ọla kọpa min% | ||
| Ọkpụrụkpụ niile | 0.035 | Ọkpụrụkpụ niile | 0.04 | 0.20 | ||
| Ngwongwo igwe | A283 Ọkwa B |
| Ike tensile, kis [MPa] Mpụta ike, min, kis [MPa] Mgbatị n'ime 8 inch [200 mm], nkeji, % Mgbatị n'ime 2 in. [50 mm], nkeji, % |
50-56[345-450] 27[185] 25 28 |