ASTM A622 Boiler Vessel Phaj

ASTM A662 specification npog peb qib, Qib A, B, thiab C, nws yog ib yam ntawm carbon-manganese-silicon steel daim hlau npaj rau kev pab cuam nyob rau hauv welded siab hlab ntsha uas txhim kho kub tsis tshua muaj siab toughness yog ib qho tseem ceeb. Nws feem ntau yog siv los tsim cov hlab ntsha nruab nrab lossis qis qis.

ASTM A622 boiler nkoj daim hlau muab faib ua 3 theem: Qib A, Qib B, thiab Qib C. Qhov sib txawv tseem ceeb ntawm cov tshuaj muaj pes tsawg leeg ntawm 3 qib yog cov ntsiab lus manganese. Ntxiv manganese cov ntsiab lus tuaj yeem txhim kho cov txiaj ntsig thiab tensile lub zog ntawm cov hlau phaj.

Sab saum toj thickness txwv rau ASTM A622 boiler nkoj daim hlau tsuas yog txwv los ntawm lub peev xwm ntawm cov tshuaj muaj pes tsawg leeg kom tau raws li cov kev cai ntawm txhua yam khoom. ASTM A622 Boiler Vessel Phaj yuav tsum normalized thaum thickness tshaj 40mm. Thaum lub thickness tsis tshaj 40 hli, Class B thiab Class C ASTM A622 boiler nkoj daim hlau feem ntau yog muab nyob rau hauv lub dov lub xeev, thiab kuj yuav raug txiav txim raws li normalized los yog kev nyuaj siab-relieved, los yog normalized thiab kev nyuaj siab-relieved.

Hais txog ASTM A662 Steel Phaj

Thickness: 5 hli -100 hli

Ntev: 4000mm- 12000mm

Dav: 1000mm- 4000mm

Daim ntawv thov:Tsawg kub siab lub nkoj phaj, boiler steel phaj

Technology ntxiv:Kev kho cua sov: Normalized, Quenched, Tempered, HIC, Impact Test, NDT, PWHT, NACE0175, Third Party Test.

Nto:Coated los yog Txhaj Blasting thiab Painting.

Delivery xeev:Kub Rolled, Txias Rolled

Steel Qib:Qib A, Qib B, Qib C

ASTM A662 Tshuaj muaj pes tsawg leeg:

Qib Steel	ASTM A662 Chemical Composition Max (%)
Qib Steel	C	Si	Mn	P	S	Al	N
Qib A	0,17	0.13-0.45	0.84-1.46	0.035	0.035	-	-
Qib B	0,22	0.13-0.45	0.79-1.62	0.035	0.035	-	-
Qib C	0,24	0.13-0.55	0.92-1.72	0.035	0.035	-	-

ASTM A662 Cov Khoom Siv Hluav Taws Xob:

Qib Steel		ASTM A662 Mechanical Property
Qib Steel	Thickness	Yield	Tensile	Elongation
Qib A	mm	Min Mpa	Mpa	Tsawg%
	6-50	275	400-540	23%
	50-200	275	400-540	20%
Qib B	6-50	275	450-585	23%
Qib B	50-200	275	450-585	20%
Qib C	6-50	295	480-620	22%
Qib C	50-200	295	480-620	18%