Txheej txheem cej luam ntawm alloy steel yeeb nkab
Ib qho Alloy Steel Yeeb Nkab yog siv rau hauv cov ntawv thov uas yuav tsum muaj kev tiv thaiv corrosion tsis zoo nrog kev ua haujlwm zoo thiab ntawm tus nqi pheej yig. Txhawm rau muab nws yooj yim, cov kav hlau alloy yog nyiam nyob rau hauv cov cheeb tsam uas cov kav dej carbon steel yuav ua tsis tiav. Muaj ob chav kawm ntawm alloy steels - high alloys thiab low alloy steels. Cov kav dej uas tsim cov hlau tsis tshua muaj hlau muaj cov ntsiab lus alloying uas qis dua 5%. Thaum cov ntsiab lus alloying ntawm cov hlau alloy siab yuav nyob nruab nrab ntawm 5% txog 50%. Zoo ib yam li cov alloys feem ntau, kev ua haujlwm siab muaj peev xwm ntawm Alloy Steel Seamless Pipe yog li 20% siab dua li cov yeeb nkab welded. Yog li hauv cov ntawv thov uas muaj kev ua haujlwm siab dua raws li qhov yuav tsum tau ua ua ntej, kev siv cov yeeb nkab seamless yog tsim nyog. Txawm tias muaj zog dua li cov yeeb nkab welded, tus nqi ntau dua. Tsis tas li ntawd, qhov kev pheej hmoo ntawm intergranular corrosion ntawm tshav kub cuam tshuam weld cheeb tsam yog ntau dua nyob rau hauv cov khoom welded. Qhov pom qhov sib txawv ntawm ib qho Alloy Steel Welded Yeeb Nkab thiab cov khoom siv seamless yog latitudinal seam raws qhov ntev ntawm cov yeeb nkab. Txawm li cas los xij, niaj hnub no, nrog kev nce qib hauv thev naus laus zis, cov seam tam sim no ntawm Alloy Steel ERW Yeeb Nkab tuaj yeem txo qis los ntawm kev kho saum npoo, xws li nws tseem pom tsis tau rau tib neeg lub qhov muag.
Alloy Steel Tube & Yeeb Nkab Specification (Seamless / Welded / ERW)
Specifications | ASTM A335 ASME SA 335 |
Txuj | ASTM, ASME thiab API |
Loj | 1/8" NB TO 30" NB IN |
Tubing Loj | 1/2 "OD txog 5" OD, kev lis kev cai diameters kuj muaj |
Sab nraud | 6-2500mm; WT: 1-200 hli |
Teem caij | TXC 20 SCH 30 SCH 40 STD SCH 80 SCH 60 SCH 80 SCH 120 SCH 140 SCH 160 XXS |
Qib | STM A335 Gr. P5, P9, P11, P12, P21, P22 & P91, ASTM A213 - T5, T9, T11, T12, T22, T91, ASTM A691 |
Ntev | Hauv 13500mm |
Hom | Seamless / Fabricated |
Daim ntawv | Hloov, Hydraulic thiab lwm yam |
Ntev | Ib qho Random, Ob Chav Random & Txiav Ntev. |
Xaus | Plain End, Beveled kawg, Treaded |
Hom Alloy Steel Seamless Tubes
15cr mo alloy khoom steel kav
25crmo4 alloy steel yeeb nkab
36 nti ASTM A 335 Qib P11 alloy galvanized steel yeeb nkab
42CrMo / SCM440 alloy steel seamless yeeb nkab
Alloy 20/21/33 steel yeeb nkab
40MM alloy steel yeeb nkab
ASTM A355 P22 Seamless Alloy Steel Yeeb Nkab
ASTM A423 Alloy Steel Seamless Yeeb Nkab
Galvanized qis alloy coated steel yeeb nkab
Alloy Steel ERW Pipes Cov Khoom Siv Tshuaj
Hlau alloy | |||||||
C | Cr | Mn | Mo | P | S | Si | |
0.05-0.15 Nws | 1.00-1.50 Nws | 0.30-0.60 Nws | 0.44-0.65 Nws | 0.025 max | 0.025 max | 0.50-1.00 Nws |
Mechanical Yam ntxwv Alloy Steel Chrome moly Pipes
Tensile zog, MPa | Yield zog, MPa | Elongation,% |
415 nqi | 205 feeb | 30 feeb |
Sab nraud txoj kab uas hla & kam rau ua ntawm ASME SA335 Alloy yeeb nkab
ASTM A 450 1.5 hli | Kub dov | Sab nraud txoj kab uas hla, mm | Siab ntev, mm |
OD≤101.6 | +0.4/-0.8 | ||
101.6<OD≤190.5 | +0.4/-1.2 | ||
190.5<OD≤228.6 | +0.4/-1.6 | ||
Txias Drawn | Sab nraud txoj kab uas hla, mm | Siab ntev, mm | |
OD 25.4 | ± 0.10 | ||
25.4 OD = 38.1 | ± 0.15 | ||
38.1 OD 50.8 | ± 0.20 | ||
50.8 OD = 63.5 | ± 0.25 | ||
63.5 OD< 76.2 | ± 0.30 | ||
76.2≤OD≤101.6 | ± 0.38 | ||
101.6<OD≤190.5 | +0.38/-0.64 | ||
190.5<OD≤228.6 | +0.38/-1.14 | ||
ASTM A530 thiab ASTM A335 | NPS | Sab nraud Diameter, nti | Siab ntev, mm |
1/8≤OD≤1-1/2 | ± 0.40 | ||
1-1/2<OD≤4 | ± 0.79 hli | ||
4<OD≤8 | +1.59/-0.79 | ||
8<OD≤12 | +2.38/-0.79 | ||
OD> 12 | ± 1% |
Alloy Steel Qib Pipes Thaum tshav kub kub kho
P5, P9, P11, thiab P22 | |||
Qib | Kev kho cua sov hom | Normalizing Temperature Range F [C] | Subcritical Annealing los yog Tempering Qhov kub thiab txias F [C] |
P5 (b,c) | Tag Nrho lossis Isothermal Anneal | ||
Normalize thiab Temper | ***** | 1250 [675] | |
Subcritical Anneal (P5c nkaus xwb) | ***** | 1325 - 1375 [715 - 745] ib. | |
P9 | Tag Nrho lossis Isothermal Anneal | ||
Normalize thiab Temper | ***** | 1250 [675] | |
P11 | Tag Nrho lossis Isothermal Anneal | ||
Normalize thiab Temper | ***** | 1200 [650] | |
P22 | Tag Nrho lossis Isothermal Anneal | ||
Normalize thiab Temper | ***** | 1250 [675] | |
P91 | Normalize thiab Temper | Xyoo 1900-1975 [1040 - 1080] | 1350-1470 [730 - 800] ib. |
Quench thiab Temper | Xyoo 1900-1975 [1040 - 1080] | 1350-1470 [730 - 800] ib. |
Alloy Steel Seamless Tubes Daim Ntawv Thov Kev Lag Luam
● Off-Shore Roj Drilling tuam txhab uas muag
● Lub Hwj Chim Loj
● Petrochemicals
● Kev ua pa roj
● Cov Tshuaj Tshwj Xeeb
● Pharmaceuticals
● Cov Khoom Siv Tshuaj
● Cov Khoom Siv Tshuaj
● Cov Khoom Siv Dej Hiav Txwv
● Kub Exchangers
● Condenser
● Pulp thiab Ntawv Kev Lag Luam