A537 CLASS 2 Thaum tshav kub kub kho Boiler steel phaj

ASTM A537 Class 2 steel yog cov khoom siv siab dua thiab tensile lub zog siv hauv kev tsim cov hlab ntsha thiab cov boilers steel. Cov hlau muaj xws li alloying ntawm carbon, manganese thiab silicon thiab kho cua sov siv txoj kev quenched thiab tempered uas muab cov khoom nws residual zog.

ASTM Cov Qauv:

A20/A20M: Specification rau General Requirements for Pressure Vessel Plates
A435 / A435: Rau Ncaj-Beam Ultrasonic Examination ntawm Hlau Phaj
A577 / A577M: Rau Ultrasonic Angle-Beam Examination ntawm Steel Phaj
A578 / A578M: ​​Rau Ncaj-Beam Ultrasonic Examination ntawm Rolled Steel Phaj rau Kev Siv Tshwj Xeeb

Manufacturing Notes:

Hlau Phaj raws li ASTM A537 Chav Kawm 1, 2 thiab 3 yuav tsum raug tua cov hlau thiab ua raws li qhov zoo ntawm austenitic grain loj yuav tsum tau ntawm Specification A20 / A20M.

Txoj kev kho cua sov:

Txhua daim hlau raws li ASTM A537 yuav tsum tau kho cua sov raws li hauv qab no:
ASTM A537 Class 1 daim hlau yuav tsum normalized.
Chav Kawm 2 thiab Chav Kawm 3 yuav tsum tau quenched thiab tempered. Tempering kub rau Class 2 daim hlau yuav tsum tsis pub tsawg tshaj 1100 ° F [595 ° C] thiab tsis tsawg tshaj 1150 ° F [620 ° C] rau Class 3 daim hlau.