Structure enweghị nkebi nchara Pipe maka mbupụ

Structure Seamless steel Pipe for exporting

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Ọdịdị Steel Pipe Pipe

GB/T 8162-2008 20,45,20Mn,Q345B,Q345C,Q345D,45Mn2,27SiMn

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Ọkọlọtọ:GB/T8162-2008
Ọkwa:20, 45, 20Mn, Q345B, Q345C, Q345D, 45Mn2, 27SiMn
Koodu nzipu:Na-ekpo ọkụ mpịakọta
Oke oke:OD 73MM-630MM , Ọkpụrụkpụ 4MM-35MM
Nkwenye:Dị ka GB/T8162-2008 si kwuo
Ogologo:Dị ka arịrịọ
MTC:GB/T19001-2008

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Ngwakọta kemịkalụ:

Ọkwa	C	Si	Mn	P	S	Nb	V	Ti	Cr	Ni	Cu
20	0.17-0.23	0.17-0.37	0.35-0.65	≤0.035	≤0.030	/	/	/	≤0.25	≤0.30	≤0.25
45	0.42-0.50	0.17-0.37	0.50-0.80	≤0.035	≤0.030	/	/	/	≤0.25	≤0.30	≤0.25
20 nde	0.17-0.23	0.07-0.37	0.70-1.00	≤0.035	≤0.030	/	/	/	≤0.25	≤0.30	≤0.25
Q345B	≤0.20	≤0.50	≤1.70	≤0.035	≤0.035	≤0.07	≤0.15	≤0.20	≤0.30	≤0.50	≤0.30
Q345C	≤0.20	≤0.50	≤1.70	≤0.035	≤0.030	≤0.07	≤0.15	≤0.20	≤0.30	≤0.50	≤0.30
Q345D	≤0.18	≤0.50	≤1.70	≤0.035	≤0.025	≤0.025	≤0.15	≤0.20	≤0.30	≤0.50	≤0.30
45Mn2	0.42-0.49	0.17-0.37	1.40-1.80	≤0.035	≤0.035	/	/	/	≤0.25	/	≤0.25
27 Simn	0.24-0.32	1.10-1.40	1.10-1.40	≤0.035	≤0.035	/	/	/	≤0.30	/	≤0.20

Ngwongwo igwe:

Ọkwa	Ngwakọta kemịkalụ				Ike Yeildmin Mpa			Ike ọdụdọ	Ogologo oge	Nnwale mmetụta
					T na mm			Mpa		Nnwale mmetụta
					≤16	16 ≤30	30			℃	Mmetụta/J
					≤16	16 ≤30	30			℃	≥
20	/	/	/	/	245	235	225	≥410	≥20	-	-
45	/	/	/	/	335	325	315	≥590	≥14	-	-
20 nde	/	/	/	/	275	265	255	≥450	≥20	-	-
Q345B	≤0.012	≤0.10	/	/	345	325	295	470-630	≥20	20	34
Q345C	≤0.012	≤0.10	/	≥0.015	345	325	295	470-630	≥21	0	34
Q345D	≤0.012	≤0.10	/	≥0.015	345	325	295	470-630	≥21	-20	34
45Mn2	/	≤0.25	/	/	885			≥735	≥10	-	-
27 Simn	/	≤0.30	/	/	980			≥835	≥12	-	-