ISO 4038 tus qauv yog rau kev tsav tsheb - Hydraulic braking tshuab impulse flare kav, khuam qhov, txiv neej fittings thiab hose kawg fittings.
International Standard IS0 4038 tau npaj los ntawm Technical Committee lSO / TC 22, Tsheb tsheb, Subcommittee SC 2, Nres tshuab thiab khoom.
Qhov no ISO 4038 International Standard qhia txog qhov tseem ceeb ntawm qhov sib txawv thiab cov yeeb yam ntawm lub cev rau cov kav hlau, cov kav hlau uas muaj qhov txuas, cov hlua khi, txiv neej fittings, thiab hose kawg fittings siv hydraulic braking systems rau kev tsheb.
Cov hlua hlau yuav tsum muaj cov khoom siv hauv qab no:
tensile lub zog: 2 290 MPa
yield point: 3 200 MPa
elongation ntawm so 3 25%
hardness: G 55 HR30T
Cov sab hauv thiab sab nraud ntawm lub raj yuav tsum yog pub dawb los ntawm oxidation. Lub sab nraud yuav tsum tiv thaiv kev txhuam thiab yuav tsum tau kuaj cov tshuaj NSS ntsev tsuag raws li IS0 9227 yam tsawg kawg yog 96 h.
