ASTM A213 T91, T12, T11 alloy yeeb nkab yog ferritic thiab austenitic alloy steel seamless steel yeeb nkab siv hauv boilers, superheaters thiab tshav kub exchangers.
T91 alloy boiler raj yog tsuas yog siv rau cov cua kub saum npoo ntawm cov cua kub qis thiab nruab nrab siab boilers (kev ua hauj lwm siab feem ntau tsis ntau tshaj 5.88Mpa, ua hauj lwm kub yog qis dua 450 degree); siv nyob rau hauv high-pressure boilers (kev ua hauj lwm siab yog feem ntau siab tshaj 9.8Mpa, ua hauj lwm kub yog qis dua 450 degree ~ 650 degree cua sov nto kav, economizers, superheaters, reheaters, petrochemical kev lag luam kav, thiab lwm yam.
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ASTM A213 / ASME SA213 yeeb nkab Tshuaj Chemical thiab Mechanical Properties
| Qib | Tshuaj muaj pes tsawg leeg% | ||||||||
| C | Si | Mn | P, S Max | Cr | Mo | Ni Max | V | Al Max | |
| 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 | Max 0.5 | 0.30~0.61 | 0.025 | 0.80~1.25 | 0.44~0.65 | - | - | - |
| 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 |
| Qib | Tshuaj muaj pes tsawg leeg% | Mechanical Properties | |||||||
| W | B | Nb | N | T. S | Y. P | Elongation | Hardness | ||
| T11 | - | - | - | - | Ntau dua lossis sib npaug rau 415MPa | Ntau dua lossis sib npaug li 205MPa | Ntau dua lossis sib npaug li 30% | 163 HWB (85 HRB) | |
| T12 | - | - | - | - | Ntau dua lossis sib npaug rau 415MPa | Ntau dua lossis sib npaug li 220MPa | Ntau dua lossis sib npaug li 30% | 163 HWB (85 HRB) | |
| T91 | - | - | 0.06~0.10 | 0.03~0.07 | Ntau dua lossis sib npaug li 585MPa | Ntau dua lossis sib npaug rau 415MPa | Ntau dua lossis sib npaug li 20% | 250 HBW (25 HRB) | |
ASME SA213 Alloy Steel Seamless Tube Dimensions kam rau ua
| Sab nraud txoj kab uas hla | OD Tolerance | WT kam rau ua | Ovality kam rau ua | Txiav Length Tolerance |
| OD Tsawg dua lossis sib npaug li 12,7 mm | ± 0, 13 mm | ± 15 % | - | + 3, 18 mm, - 0 mm |
| 12,7 hli < OD Tsawg dua los yog sib npaug rau 38,1 hli | ± 0, 13 mm | ± 10 % | max, 1,65 mm | + 3, 18 mm, - 0 mm |
| 38, 1 hli < OD Tsawg dua los yog sib npaug rau 88, 9 mm | ± 0, 25 hli | ± 10 % | max, 2, 41 mm | + 4, 76 mm, - 0 mm |
ASTM A213 Seamless Boiler Tube
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Cim npe nrov: astm a213 t91 t12 t11 alloy tube, Tuam Tshoj astm a213 t91 t12 t11 alloy tube manufacturers, lwm tus neeg, Hoobkas
