P275NH va P355NH po'lat plitalar orasidagi farq

Dec 02, 2025 Xabar QOLDIRISH

Asosiy farq shundaki, P275NH po'latining minimal oquvchanligi 275 N / mm², P355NH po'lati esa 355 N / mm² ga teng. Ikkalasi ham bosimli idishlar uchun EN 10028-3 standarti bo'yicha normallashtirilgan nozik taneli po'latdir, lekin P355NH kuchliroqdir.

info-850-508

P355NH Kimyoviy tarkibi
Baho	Maksimal element (%)
Baho	C	Si	Mn	P	S	Al(min)	N
P355NH	0.20	0.50	0.9-1.70	0.03	0.025		0.02
	Cr	Cu	Mo	Nb	Ni	Ti	V
	0.30	0.30	0.08	0.005	0.50	0.03	0.10

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

P275NH Kimyoviy tarkibi
Baho	Maksimal element (%)
Baho	C	Si	Mn	P	S	Al(min)	N
P275NH	0.16	0.40	0.5-1.40	0.030	0.020		0.02
	Cr	Cu	Mo	Nb	Ni	Ti	V
	0.30	0.30	0.08	0.005	0.50	0.03	0.05

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

Baho		P355NHMexanik xususiyat
Baho	Qalinligi	Yo'l bering	Tensilmie	Cho'zilish	Ta'sir energiyasi (KV J) min
P355NH	mm	Min Mpa	Mpa	Min %	-20 daraja	0 daraja	+20 daraja
	16 dan kam yoki teng	355	490-630	22	47	55	63
	16>35 dan kam yoki teng	355	490-630	22	47	55	63
	35>50 dan kam yoki unga teng	345	490-630	22	47	55	63
	50>70 dan kam yoki unga teng	325	490-630	22	47	55	63
	70>100 dan kam yoki unga teng	315	470-610	21	47	55	63
	100>150 dan kam yoki unga teng	295	450-590	21	47	55	63

Baho		P275NHMexanik xususiyat
Baho	Qalinligi	Yo'l bering	Tensilmie	Cho'zilish	Ta'sir energiyasi (KV J) min
P275NH	mm	Min Mpa	Mpa	Min %	-20 daraja	0 daraja	+20 daraja
	16 dan kam yoki teng	275	390-510	24	47	55	63
	16>35 dan kam yoki teng	275	390-510	24	47	55	63
	35>50 dan kam yoki unga teng	265	390-510	24	47	55	63
	50>70 dan kam yoki unga teng	255	390-510	24	47	55	63
	70>100 dan kam yoki unga teng	235	370-490	23	47	55	63
	100>150 dan kam yoki unga teng	235	350-470	23	47	55	63