P275N Siab Vessel Steel Phaj

EN10028 P275N steel phaj / / ntawv, raws li tus qauv EN, peb tuaj yeem suav nrog P275N steel phaj/ ntawv rau boilers thiab Pressure Vessels steels.EN10028 P275N steel phaj / ntawv yog rau boilers thiab Pressure Vessels steels, nws yog ib tug normalized steel phaj thiab daim ntawv uas yog tsuas yog siv rau lub tsev siab hlab ntsha thiab boilers thiab kav dej kub.

Raws li tus qauv EN10028_3, steel phaj P275N yuav tsum nyob rau hauv qhov xwm txheej tus me nyuam thaum ua tiav.Cov hlau qib P275NH thiab P275N feem ntau yog siv rau hauv cov hlab ntsha siab thiab cov boilers txawv ntawm lwm cov carbon_manganese structural steel daim hlau uas muaj nws qhov siab tiv thaiv siab ntawm txhua qhov kub thaum siv.

P275N Cov tshuaj muaj pes tsawg leeg
Qib	Cov ntsiab lus Max (%)
	C	Si	Mn	P	S	Al (min)	N
P275 N	0.18	0.40	0.5-1.40	0.030	0.025		0.02
	Cr	Cu	Mo	Nb	Ni	Ti	V
	0.30	0.30	0.08	0.005	0.50	0.03	0.05

Carbon Equivalent: Ceq = 【C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15】%

Qib	P275 N Mechanical Property
	Thickness	Yield	Tensile	Elongation	Impact Zog (KV J) min
P275 N	mm	Min Mpa	Mpa	Min %	-20 °	0 °	+ 20 °
	≤ 16	275	390-510	24	40	47	55
	16> rau ≤35	275	390-510	24	40	47	55
	35> rau ≤50	265	390-510	24	40	47	55
	50> rau ≤70	255	390-510	24	40	47	55
	70> rau ≤100	235	370-490	23	40	47	55
	100> rau ≤150	235	350-470	23	40	47	55