P275N Cadaadiska Weelka Birta ee Saxanka

EN10028 P275N saxan bir ah, sida waafaqsan heerka EN, waxaan tixgelin karnaa P275N saxan bir ah // xaashida kuleyliyaha iyo weelasha cadaadiska. EN10028 P275N saxanka birta saxan bir ah iyo xaashi kaas oo inta badan loo isticmaalo dhismaha weelasha cadaadiska iyo kuleyliyaha iyo tuubooyinka dareeraha kulul.

Sida caadiga ah EN10028_3, saxan bir P275N waa in ay hoos yimaadaan xaalad gaarsiinta Caadi ah marka processing. Kuwan fasalka steel P275NH iyo P275N inta badan loo isticmaalo weelasha cadaadiska iyo kuleyliyaha ka duwan yihiin taarikada kale ee carbon_manganese dhismeedka lahaanshaha si ay iska caabin sare cadaadis at heerkulka oo dhan marka isticmaalka.

P275N  Halabuurka Kiimikada
Darajo	Cunsurka ugu sarreeya (%)
	C	Si	Mn	P	S	Al(min)	N
P275N	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

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

Darajo	P275N   Hantida makaanikada
	Dhumucda	Wax-soo-saarka	Jilicsan	Dheeraynta	Tamarta Saamaynta (KV J) min
P275N	mm	Min Mpa	Mpa	Ugu yaraan %	-20°	0°	+20°
	≤ 16	275	390-510	24	40	47	55
	16> ilaa ≤35	275	390-510	24	40	47	55
	35> ilaa ≤50	265	390-510	24	40	47	55
	50> ilaa ≤70	255	390-510	24	40	47	55
	70> ilaa ≤100	235	370-490	23	40	47	55
	100> ilaa ≤150	235	350-470	23	40	47	55