Tsim cov txheej txheem kub dov rolling \ / kub ua hauj lwm, dov
Chav Kawm Ntawv 660 muaj ob peb qib sib txawv, categorized cov niam ntawv, A thiab B. cov khoom muaj xws li 660B studs. Txawm hais tias kev siv tshuaj zoo ib yam, txhua chav kawm muaj kev daws teeb meem sib txawv thiab cov kev kho mob kom tawv, ua rau muaj cov khoom sib txawv. ASTM A453 Qib 660 Trolt Bolt yog ib tus neeg nag lossis daus ua rau tawv tawv tawv. Austenitic alloy Astm A453 Qib 660 tus txiv ntoo yog paub rau lawv cov khoom muaj nqis tensile lub zog, txawm tias thaum raug rau qhov kub.
Ib qho tab sis weld yeeb nkab haum yog tsim los tau siv rau ntawm qhov kawg (s) kom txuas cov yeeb nkab sib sau ua ke thiab tso cai rau kev hloov pauv lossis tawv nqaij lossis xaus. Qhov kev haum no ces ua ib feem ntawm cov kab ke rau kev thauj cov dej (roj, roj, kua, yam ntxwv zoo, dhau los ntawm kev ncua ntev lossis ntev dua.