ASTM A213 Steel Pipe
| Ihe | ASTM A213 T12 Alloy ígwè ọkpọkọ / tube | |
| Ọkọlọtọ | ASTM A213, JIS G3462, JIS G3458, DIN17175, GB9948, GB 6479, wdg. | |
| Ihe onwunwe | T12, STBA22, 15CrMo. | |
| Nkọwapụta | Ọkpụrụkpụ mgbidi | 1mm ~ 120mm |
| Dayameta dị n'èzí | 6mm ~ 2500mm | |
| Ogologo | 5.8m, 6m, 11.8m, 12m, ma ọ bụ dị ka achọrọ. | |
| Elu | Agba ojii, kpuchie PE. | |
| Ngwakọta kemịkalụ | C: 0.05-0.15, Si≤0.5, Mn:0.30 ~ 0.61, P≤0.025, S≤0.025, Mo: 0.44 ~ 0.65, Kr: 0.80-1.25 | |
| Oge ọnụahịa | Ex-ọrụ, FOB, CIF, CFR, wdg. | |
| Oge ịkwụ ụgwọ | TT, LC, OA, D/P | |
| Bupụ na | Singapore, Canada, Indonesia, Korea, USA, UK, Thailand, Peru, Saudi Arabia, Viet Nam, Iran, India, Ukraine, Brazil, South Africa, wdg. | |
| Oge Mbuga ozi | Oge nnyefe: N'ime ụbọchị 30 ma dabere n'ọnụ ọgụgụ gị. | |
| ngwugwu | Mbupu ọkọlọtọ ngwugwu;igbe osisi jikọtara ọnụ, uwe maka ụdị njem ọ bụla, ma ọ bụ achọrọ ya | |
| Ngwa | 1) mmiri ọkụ, ihe na-ekpo ọkụ;2) mmanụ ala;3) Aerospace; 4) chemical; 5) ọkụ eletrik; 6) agha. | |
ASTM A213 Alloy Steel Chemical Composition (%, max)
| Ọkwa ígwè | Ngwakọta kemịkalụ% | ||||||||||||
| C | Si | Mn | P, S Max | Cr | Mo | Na Max | V | Al Max | W | B | Nb | N | |
| T2 | 0.10-0.20 | 0.10-0.30 | 0.30-0.61 | 0.025 | 0.50-0.81 | 0.44-0.65 | - | - | - | - | - | - | - |
| T11 | 0.05-0.15 | 0.50-1.00 | 0.30-0.60 | 0.025 | 1.00-1.50 | 0.44-0.65 | - | - | - | - | - | - | - |
| T12 | 0.05-0.15 | Kachasị 0.5 | 0.30-0.61 | 0.025 | 0.80-1.25 | 0.44-0.65 | - | - | - | - | - | - | - |
| T22 | 0.05-0.15 | Kachasị 0.5 | 0.30-0.60 | 0.025 | 1.90-2.60 | 0.87-1.13 | - | - | - | - | - | - | - |
| T91 | 0.07-0.14 | 0.20-0.50 | 0.30-0.60 | 0.02 | 8.0-9.5 | 0.85-1.05 | 0.4 | 0.18-0.25 | 0.015 | - | - | 0.06-0.10 | 0.03-0.07 |
| T92 | 0.07-0.13 | Kachasị 0.5 | 0.30-0.60 | 0.02 | 8.5-9.5 | 0.30-0.60 | 0.4 | 0.15-0.25 | 0.015 | 1.50-2.00 | 0.001-0.006 | 0.04-0.09 | 0.03-0.07 |
ASTM A213 Alloy Steel Mechanical Njirimara:
| Ọkwa ígwè | Ihe eji arụ ọrụ | |||
| T. S | Y.P | Ogologo oge | Isi ike | |
| T2 | ≥ 415MPa | ≥ 205MPa | ≥ 30% | 163HBW (85HRB) |
| T11 | ≥ 415MPa | ≥ 205MPa | ≥ 30% | 163HBW (85HRB) |
| T12 | ≥ 415MPa | ≥ 220MPa | ≥ 30% | 163HBW (85HRB) |
| T22 | ≥ 415MPa | ≥ 205MPa | ≥ 30% | 163HBW (85HRB) |
| T91 | ≥ 585MPa | ≥ 415MPa | ≥ 20% | 250HBW (25HRB) |
| T92 | ≥ 620MPa | ≥ 440MPa | ≥ 20% | 250HBW (25HRB) |
ASTM A213 Steel tubes n'èzí dayameta na ndidi ọkpụrụkpụ mgbidi
| Od, mm | OD ndidi |
| < 25.4 | +/- 0.10 |
| 25.4 - <= 38.1 | +/- 0.15 |
| > 38.1 - < 50.8 | +/- 0.20 |
| 50.8 - <63.5 | +/- 0.25 |
| 63.5 - <76.2 | +/- 0.30 |
| 76.2 - <= 101.6 | +/- 0.38 |
| > 101.6 - <= 190.5 | +0.38/-0.64 |
| > 190.5 - <= 228.6 | +0.38/-1.14 |
| Od, mm | Nkwenye WT |
| <= 38.1 | +20%/-0 |
| > 38.1 | +22%/-0 |
Ọkọlọtọ ọkọlọtọ ASTM A213
1.1 Nke a nkọwapụta na-ekpuchi enweghị enweghị nkebi ferritic na austenitic ígwè ji esi mmiri ọkụ, superheater, na okpomọkụ-exchanger tubes, họpụtara Grades T91, TP304, wdg A na-edepụtara ígwè ndị a na Tebụl 1 na 2.
1.2 akara ule nwere akwụkwọ ozi, H, na aha ha, nwere chọrọ dị iche iche na ndị nke yiri akara ule na-enweghị akwụkwọ ozi, H. Ndị a dị iche iche chọrọ na-enye elu creep-rupture ike karịa na-emekarị achievable na yiri akara ule na-enweghị ndị a dị iche iche chọrọ.
1.3 Nha tubing na ọkpụrụkpụ a na-enyekarị nkọwapụta a bụ 1/8 inch [3.2 mm] n'ime dayameta ruo 5 inch [127 mm] na dayameta mpụga na 0.015 ruo 0.500 in. [0.4 ruo 12.7 mm], gụnyere, na opekempe ọkpụrụkpụ mgbidi ma ọ bụ, ọ bụrụ na akọwapụtara ya n'usoro, nkezi ọkpụrụkpụ mgbidi.Enwere ike ịkwado tubing nwere dayameta ndị ọzọ, ma ọ bụrụhaala na ụdị tubes ahụ kwekọrọ na ihe ndị ọzọ niile a chọrọ maka nkọwapụta a.
1.4 A ga-ewere ụkpụrụ ndị ekwuru na nkeji SI ma ọ bụ nkeji-paụnd iche iche dị ka ọkọlọtọ.N'ime ederede, a na-egosi nkeji SI na braket.Ụkpụrụ ndị ekwuru na usoro ọ bụla nwere ike ọ gaghị abụ ihe ha nhata;ya mere, a ga-eji usoro ọ bụla mee ihe n'adabereghị na nke ọzọ.Ijikọta ụkpụrụ sitere na sistemụ abụọ ahụ nwere ike ibute enweghị nkwenye na ọkọlọtọ.Nkeji-paụnd inch ga-etinye ma ọ bụrụ na akọwapụtaghị aha “M” nke nkọwapụta a n'usoro.
TABLE 1 Oke ihe mejupụtara kemịkalụ, %A, maka Alloy Alloy SteelA kacha, belụsọ ma egosiputara oke ma ọ bụ opekempe.Ebe ellipses (...) pụtara na tebụl a, ọ dịghị ihe a chọrọ, na nyocha maka mmewere ekwesịghị ikpebi ma ọ bụ kọọ akụkọ.
B O kwere omume ịtụ T2 na T12 nwere sọlfọ ọdịnaya nke 0.045 max..
C N'aka nke ọzọ, n'ọnọdụ nke kacha nta nke a, ihe a ga-enwe opekempe hardness nke 275 HV na obi ike ọnọdụ, kọwara dị ka mgbe austenitizing na jụrụ na ụlọ okpomọkụ ma tupu tempering.A ga-eme nnwale ike n'etiti oke ngwaahịa.Ugboro ule siri ike ga-abụ ihe nlele abụọ nke ngwaahịa n'otu ebe ọgwụgwọ okpomọkụ yana nsonaazụ ule ike ka a ga-akọ na akụkọ nyocha ihe.
Agba ojii dị elu, mkpuchi PE
