ASTM A514 Gr B steel phaj yog lub zog siab, siab tensile steel phaj. Nws belongs rau qeb ntawm quenched thiab tempered alloy steels thiab feem ntau yog siv nyob rau hauv cov ntaub ntawv uas yuav tsum tau muaj zog thiab durability.
ASTM A514 Gr B muaj qhov tsawg kawg nkaus lub zog ntawm 100, 000 psi (690 MPa) thiab cov cuab yeej zoo heev. Nws muaj qhov toughness zoo heev, cuam tshuam tsis kam thiab weldability, ua rau nws tsim nyog siv rau hauv kev xav tau ib puag ncig xws li kev tsim kho, mining thiab cov tshuab hnyav.
Lub phaj steel yog kub kho thiab quenched kom nws hardness thiab lub zog. Nws muaj lub zog tensile siab ntawm 110-130 ksi (760-900 MPa), tso cai rau nws tiv taus kev ntxhov siab thiab kev thauj khoom hnyav.
ASTM A514 Gr B steel phaj ua tau raws li qhov yuav tsum tau ua ntawm ASTM A514 tus qauv thiab muaj nyob rau hauv thicknesses xws li 1/4 "mus rau 8".
