Ọkpọkọ ígwè Alloy enweghị ntụpọ ASME SA335 GRADE P11, P12, P22, P91, P92
Nkọwapụta
| Ojiji | Nkọwapụta | Ọkwa ígwè |
| Tube ígwè na-enweghị ntụpọ maka boiler nrụgide dị elu | GB/T 5310 | 20G, 25MnG, 15MoG, 15CrMoG, 12Cr1MoVG, |
| Okpomọkụ dị elu enweghị nsogbu Carbon Steel Nominal Pipe | ASME SA-106/ | B, C |
| Okpokoro ígwè carbon nke na-enweghị ntụpọ eji eme ihe maka nrụgide dị elu | ASME SA-192/ | A192 |
| Ọkpọkọ Alloy Carbon Molybdenum nke na-enweghị ntụpọ nke e ji eme ihe maka Boiler na Superheater | ASME SA-209/ | T1, T1a, T1b |
| Tube na ọkpọkọ ígwè carbon nke na-enweghị ntụpọ nke ejiri maka boiler na superheater | ASME SA-210/ | A-1, C |
| Ọkpọkọ ígwè Ferrite na Austenite Alloy nke na-enweghị ntụpọ nke ejiri maka Boiler, Superheater na Okpomọkụ Exchanger | ASME SA-213/ | T2, T5, T11, T12, T22, T91 |
| Ferrite Alloy Enweghị nsogbu Steel Pipe etinyere maka okpomọkụ dị elu | ASME SA-335/ | P2, P5, P11, P12, P22, P36, P9, P91, P92 |
| Ọkpọkọ ígwè na-enweghị ntụpọ nke ígwè na-eguzogide okpomọkụ mere | DIN 17175 | St35.8, St45.8, 15Mo3, 13CrMo44, 10CrMo910 |
| Pipe ígwè enweghị ntụpọ maka | EN 10216 | P195GH, P235GH, P265GH, 13CrMo4-5, 10CrMo9-10, 15NiCuMoNb5-6-4, X10CrMoVNb9-1 |







