Xov xwm

Cov qib ntawm cov hlau phaj

Kev lag luam ntawm steel phaj

ASTM A387 steel specification yog hais txog rau qib ntawm alloy steel daim hlau rau high-temperature daim ntaub ntawv.

ASTM A302 yog cov hlau tsis tshua muaj hlau nrog cov lus qhia tshwj xeeb npog 4 qib sib txawv (A, B, C, D).

ASTM A299 specification npog manganese silicon carbon steel phaj rau welded boilers thiab lwm cov hlab ntsha.

ASTM A285 tus qauv siv rau cov pa roj carbon steel, qis rau nruab nrab tensile zog steel daim hlau rau fusion-welded siab hlab ntsha.

Alloy quenched thiab tempered steel

Carburized hlau alloy

Nws yog cov khoom siv hlau tiaj tiaj uas yog nchuav nrog cov hlau molten thiab nias tom qab txias.

Hlau daim hlau yog tiaj, duab plaub, thiab tuaj yeem ncaj qha dov los yog txiav los ntawm dav hlau strips.

Hlau phaj yog cov khoom siv hlau tiaj tiaj uas yog nchuav nrog cov hlau molten thiab nias tom qab txias.

A204 qib A yog molybdenum alloy steel phaj siv rau vuam boilers thiab lwm cov hlab ntsha.