Dab tsi txawv ntawm P265GH thiab P355GH steel phaj?

Jan 22, 2026 Tso lus

P265GH thiab P355GH yog European tus qauv (EN 10028-2) weldable steel qib siv rau cov hlab ntsha siab, boilers, thiab cua kub exchangers, muab zoo siab - kub lub zog, plasticity, thiab weldability; Qhov sib txawv tseem ceeb yog lub zog, nrog P355GH muaj qhov siab tshaj qhov ua tau zoo tshaj plaws (nyob ib puag ncig 355 MPa) dua li P265GH (nyob ib ncig ntawm 265 MPa), ua rau P355GH zoo dua rau kev xav tau ntau dua -siab, siab kub daim ntawv thov xws li cov khoom siv petrochemical, thaum P265GH ua haujlwm zoo sib xws, tab sis ob qho tib si kev nyab xeeb kev lag luam zoo heev.

P265GH steel phaj Chemical Composition

Qib	C max	Si max	Mn. max	P max	S max	N max	AL min	Cr max	Cu max	Mas max	Nim max	Nb max	Tau max	V max
P265GH	0.20	0.40	0.5-1.40	0.03	0.025	0.012	0.020	0.300	0.3	0.08	0.30	0.01	0.03	0.02

P355GH steel phaj Chemical Composition

C	Si	Mn	P	S	Cr	Cu	Mo	Ni
0.25 max	0.10-0.35 Nws	0.60-1.40 Nws	0.030 max	0.030 max	0.25 max	0.30 max	0.10 max	0.30 max

P265GH Cov Khoom Muag Khoom

Qib	Thickness (hli)	Yield zog MPa (min)	Tensile zog MPa	Elongation % (min)	Impact Zog (KV J) (min)
Qib	Thickness (hli)	Yield zog MPa (min)	Tensile zog MPa	Elongation % (min)	-20 degree	0 degree	20 degree
P265GH	≤ 16	265	410-530 Nws	23	27	34	40
	16＜t ≤ 40	255	410-530 Nws	23	27	34	40
	40 t ≤ 60	245	410-530 Nws	23	27	34	40
	6 t ≤ 100	215	410-530 Nws	23	27	34	40
	100＜t ≤150	200	400-530 Nws	23	27	34	40
	150＜t ≤250	185	390-530 Nws	23	27	34	40

P355GH Cov Khoom Muag Khoom

Qib		P355GH Mechanical Property
Qib	Thickness	Yield	Tensilmie	Elongation	Impact Zog (KV J) min
P355GH	mm	Min Mpa	Mpa	Tsawg%	-20 °	0 °	+20°
	≤ 16	355	510-650	20	27	34	40
	16>rau ≤40	345	510-650	20	27	34	40
	40>rau ≤60	335	510-650	20	27	34	40
	60>rau ≤100	315	490-630	20	27	34	40
	100>rau ≤150	295	480-630	20	27	34	40
	150>rau ≤250	280	470-630	20	27	34	40

P265GH

Lub ntsiab lus: P (Pressure Vessel), 265 (MPa yam tsawg kawg nkaus yield zog), GH (High Temperature).

Khoom: Zoo plasticity, toughness, txias dabtsi yog khoov, thiab vuam zog, tsis yog - alloy steel nrog tshwj xeeb siab - kub ua haujlwm.

Daim ntaub ntawv: boilers, siab hlab ntsha, tshav kub exchangers, feem ntau haum rau siab ua hauj lwm kub.

P355GH

Lub ntsiab lus: P (Pressure Vessel), 355 (MPa yam tsawg kawg nkaus yield zog), GH (High Temperature).

Cov Khoom: Lub zog siab dua thiab tawv dua li P265GH, zoo heev thaum tshav kub kub / corrosion kuj, zoo tsim, haum rau siab -temp/pressure/corrosive ib puag ncig.

Daim ntaub ntawv: Reactors, cia tso tsheb hlau luam, boilers, chav turbines nyob rau hauv roj, roj, tshuaj, thiab fais fab kev lag luam.