Ntaub Ntawv thiab Chaw Tsim Tshuaj
ASTM A213 T22 Seamless Ferritic Alloy-Steel Boiler Tubes yog tsim los ntawm cov txheej txheem seamless thiab yuav tsum yog kub tiav lossis txias tiav, raws li tau teev tseg.
Loj Loj
Lis loj loj yuav tsum muaj nyob rau hauv lub rooj 1,
Grain loj kev txiav txim siab, yuav tsum tau ua rau ib qho kawg ntawm lub raj ntawm cov raj los ntawm txhua ntau.
Kev kho cua sov ntawm ASTM A213 T22
Rooj 1 Kev Kho Mob Cua Sov thiab Lej Loj Loj
| Teem nqi | Tsis yog Tus nab npawj |
Thaum tshav kub kub kho hom | Austenitizing / Solutioning Kub, min los yog ntau yam ºF [ºC] |
Txias Media | Subcritical Annealing lossis Tempering Kub, min los yog ntau yam ºF [ºC] |
ASTM Grain s |
| Ferritic Alloy Hlau | ||||||
| T22 | K21590 | tag nrho los yog isothermal anneal | … | … | … | … |
| normalizes thiab kub siab | … | 1250 [675] | … | |||
Nco tseg: 1.Kev kho cua sov yuav tsum tau nqa tawm nyias thiab ntxiv rau cov cua sov rau kev sib sau kub.
2.ASTM lis loj Tsis muaj. Sau, lossis coarser, tshwj tsis yog muaj lwm yam qhia.
Tshuaj lom neeg muaj pes tsawg leeg ntawm Astm A213 T22 Seamless boiler yaj
| Qib | Tshuaj lom neeg muaj pes tsawg leeg (%) | ||||||
| C | Mn | P | S | Si | Cr | Mo | |
| A213 T22 | 0.05-0.15 | 0.30-0.60 | Tsawg dua lossis sib npaug rau 0.025 | Tsawg dua lossis sib npaug rau 0.025 | Tsawg dua lossis sib npaug rau 0.50 | 1.90-2.60 | 0.87-1.13 |
Mechanical Properties ntawm ASTM A213 T22 Seamless Boiler Tubes
| Teem nqi | Tensile lub zog (mpa) | Yield zog (mpa) | Elongation (%) | Hardness (HB) |
| A213 T22 | Ntau dua los yog sib npaug rau 415 | Ntau dua los yog sib npaug rau 205 | 30 | Tsawg dua los yog sib npaug rau 163 |
Cov cuab yeej cuab tam yuav tsum tsis txhob siv rau tubing me dua 1 ⁄ 8in. [3.2 mm] nyob rau hauv txoj kab uas hla los yog nyias dua 0 015 nyob rau hauv. [0.4 mm] nyob rau hauv thickness.
Qhov ntev ntev ntawm ASTM A213 Seamless Boiler Tubes
Tolerances ntawm phab ntsa Thickness
| Phab ntsa tuab,% | ||||||||
| Sab nraum Qhov dav nyob rau hauv. [mm] |
{{0 {}}. 095 [2.4] thiab hauv qab | Tshaj {{{{0}}}. 095 mus rau 0.150 [2.4–3.8], ib |
Tshaj {{0}}.150 txog 0.0180 [3.8–4.6], ib |
Tshaj 0.180 [4.6] | ||||
| Saum | Hauv qab | Saum | Hauv qab | Saum | Hauv qab | Tshaj | Hauv qab | |
| Seamless, kub-ua tiav txoj hlab | ||||||||
| 4 [100] thiab nyob rau hauv |
40 | 0 | 35 | 0 | 33 | 0 | 28 | 0 |
| Tshaj 4 [100] | .... | .... | 35 | 0 | 33 | 0 | 28 | 0 |
| Seamless, txias-ua tiav txoj hlab | ||||||||
| Tshaj | Hauv qab | |||||||
| 1 1 ⁄ 2 [38.1] thiab hauv qab | 20 | 0 | ||||||
| Tshaj 1 1 ⁄ 2 [38.1] | 22 | 0 | ||||||
Tev ntawm sab nraud lub taub
| Pecified sab nraud ntawm lub cheeb, hauv. [hli] | Tso cai Variations, in. [mm] | |
| Tshaj | Hauv qab | |
| Kub-tiav Ua Seamless Tubes | ||
| 4 [100] los yog under | 1 ⁄ 64 [0.4] | 1 ⁄ 32 [0.8] |
| Tshaj 4 rau 7 1 ⁄ 2 [100 txog 200], incl | 1 ⁄ 64 [0.4] | 3 ⁄ 64 [1.2] |
| Tshaj 7 1 ⁄ 2 txog 9 [200 txog 225], suav nrog | 1 ⁄ 64 [0.4] | 1 ⁄ 16 [1.6] |
| Txias-tiav lawm Seamless leeg | ||
| Hauv qab 1 [25] | 0.004 [0.1] | 0.004 [0.11] |
| 1 to 1 1 ⁄ 2 [25 to 40], incl | 0.006 [0.15] | 0.006 [0.15] |
| Tshaj 1 1 ⁄ 2 rau 2 [40 txog 50], excl | 0.008 [0.2] | 0.008 [0.2] |
| 2 to 2 1 ⁄ 2 [50 to 65], excl | 0.010 [0.25] | 0.010 [0.25] |
| {{0 {0}} / 2 mus rau 3 [65 rau 75], Tshaj Tawm | 0.012 [0.3] | 0.012 [0.3] |
| 3 txog 4 [75 txog 100], incl | 0.015 [0.38] | 0.015 [0.38] |
| Tshaj 4 rau 7 1 ⁄ 2 [100 txog 200], incl | 0.015 [0.38] | 0.025 [0.64] |
| Tshaj 7 1 ⁄ 2 txog 9 [200 txog 225], suav nrog | 0.015 [0.38] | 0.045 [1.14] |
Tolerances ntawm Length
| Txoj kev ntawm Tsim |
Qhia tawm sab nraud Txoj kab uas hla, hauv. [Mm] |
Txiav ntev, nyob rau hauv. [Mm] | |
| Tshaj | Hauv qab | ||
| Seamless, kub-ua tiav | Txhua qhov ntau thiab tsawg | 3 ⁄ 16 [5] | 0 [0] |
| Seamless, txias-tiav | Hauv qab 2 [50.8] | 1 ⁄ 8 [3] | 0 [0] |
| 2 [50.8] los yog ntau dua | 3 ⁄ 16 [5] | 0 [0] | |
| 2 [50.8] los yog ntau dua | 3 ⁄ 16 [5] | 0 [0] | |
Hydrostatic lossis tsis muaj hluav taws xob hluav taws xob
Txhua lub raj yuav raug rau cov kev ntsuas hluav taws xob tsis zoo lossis kuaj cov hydOSTATIC.
Kev kuaj
(1) Kev ntsuas nruj-- Ib qho kev ntsuas nruj yuav tsum tau ua rau ntawm cov qauv ntawm ib lub raj rau ntau yam tsis ntau tshaj 50 lub raj. Kev ntsuas nruj yuav tsum tau ua ntawm cov qauv ntawm ob lub raj rau ntau tshaj 50 lub raj.
(2) Hardness Requirements -- Brinell, Vickers, lossis Rockwell hardness tests yuav tsum tau ua ntawm cov qauv ntawm ob lub raj los ntawm txhua qhov ntau.
(3) Flattening Test--Ib qho kev sim flattening yuav tsum tau ua ntawm cov qauv ntawm txhua qhov kawg ntawm ib lub raj tiav.
(4) Flaring sim -- ib qho kev xeem flaring yuav tsum tau ua rau cov hnoos qeev los ntawm txhua qhov kawg ntawm lub raj.
Qhov xwm txheej nto
Ferritic alloy txias-tiav steel tubes tsis muaj nplai thiab tsim nyog rau kev tshuaj xyuas.
Ferritic alloy kub-tiav cov hlau tub sab yog pub dawb ntawm cov nplai teev thiab tsim nyog rau kev kuaj xyuas.
Cim npe nrov: Kev qhia tshwj xeeb ntawm ASTM A213 T22 Boiler HLiab, Tuam Tshoj Specification ntawm Astm A213 T22 Boiler Tub Cov Chaw Tsim Tshuaj, Chaw Tsim Tshuaj, Hoobkas
