Qhov txawv ntawm ASTM thiab ASME yog dab tsi?
Ua ntej peb piav qhia txog qhov kev qhia tshwj xeeb no npog nws yog ib qho tseem ceeb kom paub qhov txawv ntawm ob tus qauv tshaj tawm. ASME yog American Society for Mechanical Engineers thaum ASTM yog American Society for Testing and Materials.
Thaum cov qauv sib tham hauv cov ntawv blog no tuaj yeem los ntawm cov tshaj tawm sib txawv lawv yog qhov sib npaug ntawm ib leeg thiab npog tib qhov tshwj xeeb.
ASTM A387 Qib 11 Chav Kawm 2 thiab ASME SA387 Qib 11 Chav Kawm 2 Dab Tsi?
Cov kev qhia tshwj xeeb no suav nrog chrome moly steel alloy daim hlau uas siv tshwj xeeb rau cov hlab ntsha siab thiab cov welded boilers uas ua haujlwm hauv qhov kub siab. Lwm daim ntawv thov rau cov hlau phaj uas tuaj raws li cov kev qhia tshwj xeeb no suav nrog cov khoom siv hluav taws xob thiab cov kav dej.
Qib no muaj cov ntsiab lus nominal chromium ntawm 1.25% thiab cov ntsiab lus nominal molybdenum ntawm 0.50%, thiab qib siab ntawm chromium muab cov hlau zoo oxidation thiab corrosion kuj.
Cov chav kawm qhia txog lub zog tensile xav tau los ntawm steel phaj kom ua tau raws li qhov tshwj xeeb no.ASTM A387 Qib 11 Chav Kawm 2 thiab ASME SA387 Qib 11 Chav Kawm 2xav tau lub zog tensile ntawm 75 mus rau 100 ksi (515 mus rau 690 MPA) nrog rau qhov tsawg kawg nkaus yield zog ntawm 43 ksi (310 MPA).
Qhov siab tshaj plaws thickness ntawm cov hlau daim hlau no tsuas yog txwv los ntawm lub peev xwm ntawm cov muaj pes tsawg leeg kom tau raws li cov cuab yeej cuab tam specifications yuav tsum tau.
ASTM A387 Qib 11 Chav Kawm 2 thiab ASME SA387 Qib 11 Chav Kawm 2 los ntawm GNEE
GNEE stocks ntau yam steel phaj uas yogASTM A387 Qib 11 Chav Kawm 2thiab ASME SA387 Qib 11 Chav Kawm 2 tau lees paub.
Tag nrho cov phaj yog ua ntej- sim rau cov qauv nruj, thiab peb tuaj yeem npaj qhov kev xeem thib peb yog tias yuav tsum tau kuaj tshwj xeeb.
Peb cov hlau phaj yog qhov chaw los ntawm steel mills hauv Suav teb thiab peb tuaj yeem xa peb cov khoom thoob ntiaj teb.
Raws li cov specifications, kub- dov steel phaj tuaj yeem kho raws li qhov tuab (6mm-200mm), dav (1500mm-4800mm), thiab ntev (6000mm-12000mm) raws li cov khoom tsim khoom. Lub caij no, kev txhawb nqa kev ua haujlwm tom qab tau muab - xws li cov kev pabcuam muaj nqis ntxiv nrog rau kev kuaj tsis muaj kev puas tsuaj (NDT) raws li kev kos duab, kev kho cua sov (normalizing + tempering), thiab derusting nto. Cov no ua kom cov khoom tuaj yeem hloov kho ncaj qha rau cov txheej txheem tsim khoom ntawm cov khoom siv tseem ceeb xws li cov hlab ntsha siab thiab cov khoom siv hluav taws xob.
Tsis tas li ntawd, qhov customized A387 / SA387 kub- dov steel phaj los ntawm GNEE nruj me ntsis raws li ASTM thoob ntiaj teb cov qauv thiab ASME Boiler thiab Pressure Vessel Codes. Ua tiav Cov Khoom Siv Xeem Ntawv Pov Thawj (MTC) thiab thib peb-cov ntaub ntawv tshuaj xyuas ob tog (xws li, SGS daim ntawv pov thawj) tuaj yeem muab tau kom ua tau raws li qhov yuav tsum tau ua raws li qhov siab ntawm - kub thiab siab - siab xws li petrochemicals, thee chemical engineering, thiab lub zog hluav taws xob, yog li ua kom muaj kev nyab xeeb thiab ruaj khov ntawm cov neeg siv khoom.
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FAQ
Q: Cov khoom siv SA 387 yog dab tsi?
A: Lub siab zoo chrome molybdenum alloy steel phaj npaj tshwj xeeb rau kev siv hauv weldable carbon steel siab hlab ntsha ntawm qhov kub siab. Ntxiv molybdenum muab cov khoom siv kub tensile zog thiab chromium muab kev txhim kho corrosion.
Q: SA387 qib 11 sib npaug li cas?
A: Sa 387 Gr 11 Equivalent Materials yog ASME SA387 hauv Asmeskas kev lag luam nrog European Union muaj cov qauv hauv qib 13CrMoSi5-5. Sa 387 Gr 11 Cl 2 Equivalent Materials yog SA387-11-2 ntawm ASME thiab ASTM tus qauv.
Q: Qhov txawv ntawm SA387 Qib 11 Chav Kawm 1 thiab Chav Kawm 2 yog dab tsi?
A: Qhov txawv ntawm SA 387 Qib 11 Chav Kawm 1 thiab Chav Kawm 2 Phaj nyob hauv lawv cov khoom siv tshuab. Txawm li cas los xij, lawv ob leeg muaj tib yam tshuaj muaj pes tsawg leeg. Lub zog tensile thiab lub zog ntawm cov khoom siv hauv chav kawm 2 yog siab dua li ntawm chav kawm 1, qhov elongation rau chav kawm 1 yog siab dua piv rau chav kawm 2.
Q: Dab tsi yog qhov ntsuas kub rau SA 387 GR 11?
A: Nyob rau hauv qis kawg ntawm qhov kub ntawm SA 387 Gr 11 (1150℃F min tempering kub), thiab SA 387 Gr 22 (1250℃F min tempering kub) yog siv. Cov qib no tuaj yeem teev nyob rau hauv chav kawm 1 lossis 2 thiab tseem tuaj yeem muab rau hauv Normalized & Tempered lossis Quenched thiab Tempered.
Q: Cov khoom siv SA 387 GR 9 yog dab tsi?
A: SA 387 GR 9 yog ib qho chromium-molybdenum alloy steel dav siv nyob rau hauv siab- kev siv kub xws li cov hlab ntsha siab thiab cov cuab yeej tsim hluav taws xob thiab nws muab kev tiv thaiv zoo rau oxidation thiab nkag mus, ua rau nws zoo tagnrho rau lub sijhawm ntev - kev pabcuam ntawm qhov kub siab.
Q: Cov tshuaj muaj pes tsawg leeg ntawm SA 387 GR 22 yog dab tsi?
A: 22 CL. 2 phaj tshuaj muaj pes tsawg leeg suav nrog Chromium (Cr) 2%, Molybdenum (Mo) 1%, Manganese (Mn) 0.5%, Silicon (Si) 0.5%, Phosphorus (P) 0.03%, Sulfur (S) 0.03%, thiab Carbon (C) 0.1%.
Q: Cov khoom sib npaug ntawm SA 387 GR 12 yog dab tsi?
A: Sa 387 Gr 12 Cov khoom sib npaug tuaj yeem muab faib ua Asme SA 387 rau Asmeskas, rau European Union, qib sib npaug rau cov khoom siv no yog EN 13CrMo4-5. Hauv lub teb chaws Yelemees thiab Askiv, cov qib sib npaug yog DIN 13CRM044 thiab BS 620B, feem. Ntxiv rau qhov no, qib sib npaug rau Fabkis yog AFNOR 36206 15CD2.
Ntxiv nrog rau cov thawv ntawv xws li A387 / SA387, peb muaj ntau txoj kev xaiv ntawm steel daim hlau teev nyob rau hauv cov lus hauv qab no uas ua tau raws li qhov yuav tsum tau ua: siab- zog qis- cov phaj alloy rau cov tshuab hnyav, hnav- cov phaj resistant rau cov khoom yaig kuj, huab cua- cov phaj resistant rau cov huab cua nyuaj, thiab ua raws li cov qauv kev faib khoom nkoj. Yog tias koj muaj kev xav tau tshwj xeeb, thov hu rau peb, thiab peb yuav muab cov lus pom zoo.
| Lwm cov hlau phaj | ||||
| Lub npe | Khoom siv | Specification (hli) | Tos | Lus ceeb toom |
| Tsawg Alloy | Q345A, Q345B, Q345C, Q345D, Q345E, Q390, Q420, Q460C, ST52-3, S355J2+N, SS400, SA302GrC, S275NL, 35CrMo | 6 - 350 | 5788.56 | Normalizing, tempered, tswj dov, kub dov, Kub dov, 1st tshuaj xyuas, 2nd tshuaj ntsuam, 3rd tshuaj ntsuam |
| Pressure Vessel Plate | Q245R, Q345R, Q370R, 16MnDR, 09MnNiDR, 15CrMoR, 14Cr1MoR, 12Cr2Mo1R, SA516Gr60, SA516Gr70, SA516Gr485, SAG281G, SAG281G SA387Gr22, P265, P295, P355GH, Q245R(R-HIC), Q345R(R{30}}HIC) | 3 - 300 | 8650 | Normalizing, tempered, tswj dov, kub dov, Kub dov, 1st tshuaj xyuas, 2nd tshuaj ntsuam, 3rd tshuaj ntsuam |
| Siab -Plate muaj zog | WH785D/E,Q960D/E,Q890D/E,WH60D/E,WH70B,Q550D,Q590D,Q690D/E | 8 - 120 | 3086.352 | Quenched thiab tempered |
| Hnav-Resistant Phaj | NM360, NM400, NM450, NM500 | 6 - 150 | 3866.297 | Quenched thiab tempered |
| Choj Phaj | Q235qC, Q345qC, Q370qC, Q420qC, Q345qDNH, Q370qDNH, A709 - 50F - 2, A709 - 50T - 2 | 8 - 200 | 2853.621 | Kub dov, normalized, kub dov tswj dov, quenched thiab tempered + toughness thiab brittleness |