Cov tshuab no feem ntau siv cov ntawv sib xyaw thiab cov lej los qhia cov ntaub ntawv hais txog cov tshuaj muaj pes tsawg leeg, cov khoom siv kho tshuab, thiab kev npaj siv cov hlau.
Ib qho ntawm cov kev lees paub dav dav tshaj plaws yog American Iron and Steel Institute (AISI) thiab Society of Automotive Engineers (SAE) system, uas siv tus lej plaub tus lej ntxiv rau tsab ntawv los qhia cov hlau tseem ceeb alloying ntsiab. Piv txwv li, 4140 yog cov hlau tsis tshua muaj hlau uas muaj tantalum thiab molybdenum, thaum 304 yog austenitic stainless hlau nrog chromium thiab npib tsib xee ua cov ntsiab lus alloying.
Hauv Tebchaws Europe, European Committee for Standardization (CEN) tau tsim EN 10025 tus qauv rau kev tsim cov qib steel qauv. Cov txheej txheem no siv cov lej thiab cov tsiaj ntawv sib xyaw ua ke, nrog thawj ob tus lej qhia qhov tsawg kawg nkaus tawm lub zog hauv MPa, ua raws li tsab ntawv qhia txog qhov hnyav lossis kev cuam tshuam ntawm cov hlau.
Piv txwv li, AS1163 C350L0 CHS tus qauv yog tshwj xeeb rau Australia thiab New Zealand thiab npog cov kev cai rau cov khoom siv hlau kub-dov. Cov npe qib hauv cov txheej txheem no suav nrog cov ntaub ntawv hais txog cov hlau qhov tsawg kawg nkaus lub zog, qhov xav tau qhov kub thiab txias, thiab cov khoom siv (piv txwv li, phaj, bar, lossis ntu ntu ntu).
Lwm lub teb chaws thiab cov koom haum, xws li Nyiv, Tuam Tshoj, thiab American Society for Testing and Materials (ASTM), muaj lawv tus kheej muab qhab nia systems, uas yuav txawv nyob rau hauv nomenclature thiab cov kev cai tshwj xeeb. Cov kws tsim qauv thiab cov khoom siv tshwj xeeb yuav tsum paub txog qhov kev muab qhab nia tsim nyog thiab nkag siab lub ntsiab lus ntawm cov npe qib kom ntseeg tau tias lawv xaiv cov hlau raug rau lawv daim ntawv thov.
Welded steel yeeb nkab
