① Tensile xeem: ntsuas kev ntxhov siab thiab deformation, txiav txim siab lub zog (YS, TS) thiab plasticity Performance index (A, Z) ntawm cov khoom
Longitudinal thiab transverse specimen yeeb nkab seem, arc, ncig cov qauv (￠10,￠12.5)
Me me-inch nyias-walled steel kav, loj-inch tuab-walled steel kav, thiab ruaj gauge nrug.
Lus Cim: Qhov elongation ntawm tus qauv tom qab tawg yog cuam tshuam nrog qhov loj ntawm tus qauv GB / T 1760
②Impact test: CVN, notch C hom, V hom, hwj chim J nqi J/cm2
Qauv qauv 10 × 10 × 55 (mm) Tsis yog qauv qauv 5 × 10 × 55 (mm)
③Hardness test: Brinell hardness HB, Rockwell hardness HRC, Vickers hardness HV, thiab lwm yam.
④Hydraulic xeem: ntsuas siab, lub sij hawm siab stabilization, p = 2Sδ / D