1. ASTM A671 CB60 Class 11 steel yeeb nkab yog dab tsi?
A carbon-manganese steel hluav taws xob-fusion-welded (EFW) yeeb nkabtsim rauqis-rau- siab nruab nrab thiab qis- qhov kev pabcuam kub, ua raws liASTM A671-25 Cov khoom siv raw khoom.
CB 60: Qhia acarbon{0}}manganese steel qibnrog txhim kho toughness (Charpy cuam tshuam kuaj ntawm-20 ° F / -29 ° C).
Chav Kawm 11: Qhia aYam tsawg kawg nkaus tawm lub zog ntawm 11 ksi (76 MPa), haum rau kev siv tsis yog -tseem ceeb heev.
2. Chav kawm 11 feem ntau siv nyob qhov twg?
Tsawg-Pressure Systems: Dej thiab roj faib tes hauj lwm, HVAC pipelines.
Industrial Auxiliary Lines: Cua txias tshuab, compressed cua kab.
Cov Qauv Txheej Txheem: Tsis yog- txhawb nqa hauv kev tsim kho thiab cog kev tsim vaj tsev.
3. CB60 Chav Kawm 11 txawv li cas ntawm lwm qib ASTM A671?
Khoom siv: Cov ntsiab lus manganese siab dua (~ 1.20%) txhim kho toughness tab sis yuav tsum tau ceev faj cov txheej txheem vuam piv rau CA55.
Lub zog: Me ntsis siab dua Chav Kawm 10 (10 ksi) tab sis qis dua Chav Kawm 12+ qib, txwv kev siv siab -.
Kev sim: Tsis muaj qhov yuav tsum tau ntsuas qhov cuam tshuam tshwj tsis yog tias tau teev tseg rau qhov kev pabcuam qis - kub.
4. Kev tsim khoom tseem ceeb thiab kev xeem yuav tsum tau ua?
Fabrication: EFW txheej txheem nrog xaiv tauPWHT (Post-Kev kho cua sov)raws li kev pabcuam.
Kev sim:
Neeg kho tshuab: Tensile thiab yield zog ibASTM A 370 Cov Lus Qhia Tshwj Xeeb.
NDT: Kev soj ntsuam pom lossis pom cov duab hluav taws xob (tag nrho RT / UT tsuas yog xav tau los ntawm qhov project specs).
Daim ntawv pov thawj: Basic MTRs (Mill Test Reports) npog chemistry thiab tensile zog.
5. Cov qauv thiab kev xav txog kev yuav khoom rau xyoo 2025?
Thawj Standard: ASTM A671-25 Cov khoom siv raw khoom(kev kho tshiab kawg).
Cov Codes ntxiv: ASME B31.3rau cov txheej txheem piping (yog tias tsim nyog).
Cov lus qhia txog kev yuav khoom:
Paub meejcoj lub sijhawm(~ 8-10 lub lis piam rau cov qauv loj).
Tshawb xyuasregional sib npaug (e.g., TS EN 10217-1 P235TR2hauv EU).
