Seamless Alloy Steel Boiler Pipes Superheater alloy kav Thaum tshav kub kub Exchanger Tubes
| Txheem:ASTM SA 213, 213 | Alloy los yog Tsis: Alloy |
| Qib: T5, T9, T11, T22 thiab lwm yam | Daim ntawv thov: Boiler Pipe / tshav kub exchanger yeeb nkab |
| Thickness: 0.4-12.7 hli | Kev kho deg: Raws li cov neeg siv khoom xav tau |
| Sab nraud txoj kab uas hla (Round): 3.2-127 mm | Cov txheej txheem: Kub Rolled |
| Length: Tsau ntev lossis random ntev | Kev kho cua sov: Normalizing / Tempering / Annealing |
| Tshooj Shape: Round | Cov yeeb nkab tshwj xeeb: Cov yeeb nkab phab ntsa tuab |
| Qhov chaw ntawm Keeb Kwm: Suav teb | Siv: Super tshav kub, Boiler thiab Kub Exchanger |
| Ntawv pov thawj: ISO9001: 2008 | Test: ECT/UT |
Nws yog tsuas yog siv los ua cov yeeb nkab zoo hlau rau kev kub siab boiler yeeb nkab, kub exchanger yeeb nkab thiab super kub yeeb nkab.
Qib ntawm cov hlau alloy zoo: T2, T12, T11, T22, T91, T92 thiab lwm yam.
| Qib Steel | Tshuaj muaj pes tsawg leeg% | ||||||||||
| C | Si | Mn | P, S Max | Cr | Mo | Ni Max | V | Al Max | W | B | |
| T2 | 0.10-0.20 Nws | 0.10-0.30 Nws | 0.30-0.61 Nws | 0.025 ib | 0.50-0.81 Nws | 0.44 ~ 0.65 hli | - | - | - | - | - |
| T11 | 0.05-0.15 Nws | 0.50-1.00 Nws | 0.30-0.60 Nws | 0.025 ib | 1.00-1.50 Nws | 0.44 ~ 0.65 hli | - | - | - | - | - |
| T12 | 0.05-0.15 Nws | Max 0.5 | 0.30-0.61 Nws | 0.025 ib | 0.80-1.25 Nws | 0.44 ~ 0.65 hli | - | - | - | - | - |
| T22 | 0.05-0.15 Nws | Max 0.5 | 0.30-0.60 Nws | 0.025 ib | 1.90-2.60 Nws | 0.87-1.13 Nws | - | - | - | - | - |
| T91 | 0.07-0.14 Nws | 0.20-0.50 Nws | 0.30-0.60 Nws | 0.02 ib | 8.0-9.5 Nws | 0.85-1.05 Nws | 0.4 | 0.18-0.25 Nws | 0.015 ib | - | - |
| T92 | 0.07-0.13 Nws | Max 0.5 | 0.30-0.60 Nws | 0.02 ib | 8.5-9.5 Nws | 0.30-0.60 Nws | 0.4 | 0.15-0.25 Nws | 0.015 ib | 1.50-2.00 Nws | 0.001 ~ 0.006 hli |
Rau T91 uas tsis yog saum toj no kuj suav nrog Nickel 0.4, Va 0.18-0.25, Ni 0.06-0.10, Ni 0.03-0.07, Al 0.02, Ti 0.01, Zr 0.01. Maximum, tshwj tsis yog muaj ntau lossis tsawg kawg yog qhia. Qhov twg ellipses (...) tshwm sim hauv cov lus no, tsis muaj qhov yuav tsum tau ua, thiab kev tshuaj xyuas rau lub caij yuav tsum tsis txhob txiav txim siab lossis tshaj tawm. B Nws tso cai rau xaj T2 thiab T12 nrog cov ntsiab lus sulfur ntawm 0.045 max. C Tsis tas li ntawd, nyob rau hauv qhov sib piv ntawm qhov tsawg kawg nkaus, cov khoom yuav tsum muaj qhov tsawg kawg nkaus hardness ntawm 275 HV nyob rau hauv lub hardened mob, txhais raws li tom qab austenitizing thiab txias rau chav tsev kub tab sis ua ntej tempering. Kev ntsuas hardness yuav tsum tau ua nyob rau nruab nrab-thickness ntawm cov khoom. Hardness test zaus yuav tsum yog ob qho piv txwv ntawm cov khoom hauv ib qho kev kho cua sov ntau thiab cov txiaj ntsig kev sim hardness yuav tsum raug tshaj tawm ntawm cov ntaub ntawv xeem cov ntaub ntawv.
| Qib Steel | Mechanical Properties | |||
| T. S | Y.P | Elongation | Hardness | |
| T2 | ≥415MPa | ≥205MPa | ≥ 30% | 163 HWB (85 HRB) |
| T11 | ≥415MPa | ≥205MPa | ≥ 30% | 163 HWB (85 HRB) |
| T12 | ≥415MPa | ≥220MPa | ≥ 30% | 163 HWB (85 HRB) |
| T22 | ≥415MPa | ≥205MPa | ≥ 30% | 163 HWB (85 HRB) |
| T91 | ≥585MPa | ≥415MPa | ≥ 20% | 250 HBW (25 HRB) |
| T92 | ≥620MPa | ≥440MPa | ≥ 20% | 250 HBW (25 HRB) |
Tso cai Variations nyob rau hauv phab ntsa thickness
| Wallthickess % | |||||
| sab nraum txoj kab uas hla hauv. mm | 0.095 ib 2.4 thiab hauv qab | ua 0,095 rau 0.15 2.4-3.8 Nws incl. | tshaj 0.15 rau 0.18 3.8-4.6 incl | tshaj 0.18 rau 4.6 | |
| pab sub rau kv thiab os | |||||
| seamless, kub tiav | |||||
| 4 nti thiab qis dua 40 0 35 0 33 0 28 0 | |||||
| 4 nti . . . 35 0 33 0 28 0 | |||||
| seamless, txias tiav | |||||
| nyob hauv qab | |||||
| 11/2 thiab qis dua | 200 | ||||
| tshaj 11/2 | 22 0 | ||||
Qhov kev tso cai hloov pauv hauv phab ntsa tuab tsuas yog siv rau lub raj, tshwj tsis yog cov hlab ntsha hauv siab, raws li dov lossis txias tiav
thiab ua ntej swaging, nthuav, dabtsi yog khoov, polishing, los yog lwm yam fabricating hauj lwm
Tso cai Variations nyob rau sab nraud
| sab nraud txoj kab uas hla (mm) | Pemitted Variation (mm) | |
| kub tiav seamless raj | dhau | hauv qab |
| 4 "(100mm) thiab qis dua | 0.4 | 0.8 ua |
| 4-71 / 2 "(100-200mm) | 0.4 | 1.2 |
| 71/2-9 "(200-225) | 0.4 | 1.6 |
| Welded raj thiab txias tiav seamless raj | ||
| hauv qab 1 "(25mm) | 0.1 | 0.11 |
| 1-11/2 "(25-40mm) | 0.15 | 0.15 |
| 11/2-2 "(40-50mm) | 0.2 | 0.2 |
| 2-21/2 "(50-65mm) | 0.25 | 0.25 |
| 21/2-3 "(65-75mm) | 0.3 | 0.3 |
| 3-4 "(75-100mm) | 0.38 ib | 0.38 ib |
| 4-71 / 2 "(100-200mm) | 0.38 ib | 0.64 ib |
| 71/2-9 "(200-225) | 0.38 ib | 1.14 |
Hydraustatic Test:
Cov yeeb nkab steel yuav tsum tau sim Hydraulic ib leeg. Qhov ntsuas siab tshaj plaws yog 20 MPa. Nyob rau hauv qhov kev sim siab, lub sij hawm ruaj khov yuav tsum tsis pub tsawg tshaj 10 S, thiab cov yeeb nkab hlau yuav tsum tsis txhob tawm. Los yog Kev Ntsuas Hydraulic tuaj yeem hloov tau los ntawm Eddy Tam sim no Kev Ntsuas lossis Kev Ntsuas Flux Magnetic.
Nondestructive Test:
Cov kav dej uas xav tau kev tshuaj xyuas ntau dua yuav tsum tau kuaj xyuas Ultrasonically ib qho los ntawm ib qho. Tom qab Kev Sib Tham Yuav Tsum Tau Txais Kev Pom Zoo Los ntawm Pawg Neeg thiab tau teev tseg hauv daim ntawv cog lus, lwm yam kev sim tsis muaj kev puas tsuaj tuaj yeem raug ntxiv.
Flattening Test:
Tubes nrog ib txoj kab uas hla sab nraud loj dua 22 hli yuav tsum raug rau qhov kev ntsuam xyuas flattening. Tsis pom kev delamination, pob dawb, lossis impurities yuav tsum tshwm sim thaum tag nrho kev sim.
Hardness Test:
Rau Cov Yeeb Nkab Qib P91, P92, P122, Thiab P911, Brinell, Vickers, lossis Rockwell Hardness Tests yuav tsum tau ua los ntawm ib qho qauv ntawm txhua qhov ntau.
