Txheej txheem cej luam
ASTM A203 Low Temperature Pressure Vessel Steel yog npib tsib xee- alloy steel phaj tsim rau welded siab hlab ntsha thiab boilers ua haujlwm ntawm qhov kub thiab txias. Ua raws li ASTM A203 / A203M, nws muaj kev ntseeg siab tsawg -kub toughness, ruaj khov khoom, thiab weldability zoo rau kev thov kev lag luam.
Cov qib muaj xws li Qib A, Qib B, Qib D, Qib E, thiab Qib F. Cov phaj yog muab rau hauv cov kev kho cua sov uas yuav tsum tau ua nrog cov ntaub ntawv ua tiav thiab cov ntaub ntawv tshuaj xyuas.
Technical Specifications
Qib Ntsiab & Cov Ntsiab Lus Nickel
|
Qib |
Nominal Nickel Cov ntsiab lus (%) |
Cov yam ntxwv tseem ceeb muaj zog |
Hom Daim Ntawv Thov Scenarios |
|
A203 Qib A |
2.25 |
Yield Strength Ntau dua los yog sib npaug rau 255MPa, Tensile Strength 450-585MPa |
General low -kub siab cov hlab ntsha, cov khoom siv cryogenic me me |
|
A203 Qib B |
2.25 |
Yield zog ntau dua los yog sib npaug rau 275MPa, Tensile Strength 485-620MPa |
Roj & roj pipelines, qis -kub cia tanks |
|
A203 Qib D |
3.50 |
Yield Strength Ntau dua los yog sib npaug rau 255MPa, Tensile Strength 450-585MPa |
Cryogenic khoom, CO2 ntes units, ethylene distillation |
|
A203 Qib E |
3.50 |
Yield zog ntau dua los yog sib npaug rau 275MPa, Tensile Strength 485-620MPa |
Sib sib zog nqus- cov khoom siv roj & roj, LNG cia tanks |
|
A203 Qib F |
2.25-3.50 |
Tensile Strength 550-690MPa, Yield zog ntau dua los yog sib npaug rau 380MPa |
High-siab qis-kub cov hlab ntsha, cov khoom siv boiler |
Chemical Composition ntawm ASTM A203 Hlau
|
Element |
Qib A/B |
Qib D/E/F |
Max Limit |
|
Cov pa roj carbon (C) |
Tsawg dua lossis sib npaug rau 0.17 (t Tsawg dua lossis sib npaug rau 50mm) |
≤0.20 (t>50 hli) |
0.20 |
|
Manganese (Mn) |
0.70-0.88 |
0.70-0.80 |
0.88 |
|
Silicon (Si) |
0.13-0.45 |
0.15-0.40 |
0.45 |
|
Phosphorus (P) |
Tsawg dua lossis sib npaug li 0.035 |
Tsawg dua lossis sib npaug li 0.025 |
0.035 |
|
Sulfur (S) |
Tsawg dua lossis sib npaug li 0.035 |
Tsawg dua lossis sib npaug li 0.025 |
0.035 |
|
Nickel (Ni) |
2.00-2.50 |
3.25-3.75 |
3.75 |
Mechanical Properties Ntawm ASTM A203 Hlau
|
Qib |
Yield zog (MPa), Min |
Tensile zog (MPa) |
Elongation (%), Min |
Yam tsawg kawg nkaus tsim kub (degree) |
|
A203 Qib A |
255 |
450-585 |
23 |
-75 (t Tsawg dua lossis sib npaug li 51 hli) |
|
A203 Qib B |
275 |
485-620 |
21 |
-75 (t Tsawg dua lossis sib npaug li 51 hli) |
|
A203 Qib D |
255 |
450-585 |
23 |
-101 (t Tsawg dua lossis sib npaug li 51 hli) |
|
A203 Qib E |
275 |
485-620 |
21 |
-101 (t Tsawg dua lossis sib npaug li 51 hli) |
|
A203 Qib F |
380 |
550-690 |
20 |
-101 (t Tsawg dua lossis sib npaug li 51 hli) |
Cov qib sib npaug thoob ntiaj teb ntawm ASTM A203 Tsawg Kub Siab Siab Vessel Steel
|
Txuj |
Qib sib npaug |
Kev piav qhia |
|
EN (Tebchaws Europe) |
12Ni14/13 Nc14 |
Nickel alloy siab lub nkoj steel rau kev pabcuam kub tsis tshua muaj |
|
DIN (Lub teb chaws Yelemees) |
1.5622 / 1.5637 |
Tsawg kub Ni- alloy steel phaj |
|
JIS (Nyiv) |
Qauv: SL3N255 / SL3N275 |
Tsawg kub siab lub nkoj steel nrog Ni cov ntsiab lus |
|
GB (Tuam Tshoj) |
09 MnNiDR |
Dav siv tsis tshua muaj kub siab lub nkoj steel |
|
ISO |
ISO Ni{0}} alloy PV Steel |
Kev faib tawm dav dav rau nickel alloy nkoj steel |
Core Technical Performance
Formulated nrog txog li 3.5% npib tsib xee, ASTM A203 / SA203 daim hlau muab cov kev cuam tshuam zoo zog mus rau -101℃los tiv thaiv kev tawg tawg hauv kev pabcuam cryogenic.
Ua kom zoo dua los ntawm LF/VD cov txheej txheem kom ua tiav ultra-cov hlau huv huv nrog kev xaiv qis S / P txwv (S Tsawg dua lossis sib npaug rau 0.005%, P Tsawg dua lossis sib npaug rau 0.010%) rau NACE MR0175 kev pabcuam qaub.
Optimized carbon sib npaug (feem ntau CEV Tsawg dua los yog sib npaug rau 0.43%) ua kom zoo weldability thiab txo cov kev xav tau ntawm preheating thaum lub sij hawm fabrication.
Supply Range & Tus nqi -Kev Pabcuam Ntxiv
Phaj Thickness:8mm-150 hli
Phaj Dav:1500mm-4000mm
Kev kho cua sov xaiv:Normalized (N), Quenched & Tempered (Q&T rau Qib F), Kev Ruaj Ntseg / Tshaj Tawm -Kev Kho Hniav Kub (PWHT simulation simulation muaj nyob rau ntawm daim coupon).
Processing peev xwm:CNC nplaim taws/plasma txiav, Beveling (V/X zoo li tus weld seam prep), Surface txhaj Blasting (Sa 2.5) + Khw Primer.
Manufacturing & Quality Control
Kev kuaj ultrasonic (NDT):100% UT kev tshuaj xyuas tau ua raws li ASTM A435 / ASTM A578 Qib A / B / C txhawm rau txheeb xyuas cov voids sab hauv, laminations, thiab suav nrog.
Thib peb-Kev Tshuaj Xyuas Tus Kheej (TPI):Factory lees txais kev xeem (FAT) ib txwm pom thiab pom zoo los ntawm SGS, Bureau Veritas (BV), TÜV Rheinland, thiab Intertek.
Tag nrho Traceability:Txhua lub phaj yog tawv- stamped thiab stenciled nrog rau kub tooj, Plate Number, Qib, thiab Standard cov ntsiab lus ncaj qha mus rau EN 10204 MTC.
Ntim & Export Logistics
Kev tiv thaiv nto:Rust-inhibitive txheej, oiling, lossis txhaj tshuaj blasting (Sa 2.5) muaj.
Transit Security:Ntug tiv thaiv, ntim cov yas tsis muaj dej, thiab hnyav -cov dej num steel hlua rau kev thauj khoom hiav txwv (FCL/Breakbulk).
FAQ
Cim npe nrov: Tuam Tshoj astm a203 tsis tshua muaj siab siab lub nkoj steel, Tuam Tshoj astm a203 tsis tshua muaj siab siab nkoj steel manufacturers, lwm tus neeg, Hoobkas
