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?????????-20#???????е???-GB/T8162???????е????

??????????????

???????	??(D)		?????(S)
??ι?	?????(mm)	???????(mm)	?????(mm)	???????(mm)
	??30-50	??0.3	??30	??10%
	??50-219	??0.8%
??????	??219	??1.0%	??20	??10%

???	???	???????(MPa)	???????(MPa)	????(%)
GB/T8162	10	??335	??205	??24
	20	??390	??245	??20
	35	??510	??305	??17
	45	??590	??335	??14
	Q345	??490	??325	??21
	15CrMo	??440	??295	??22
	12Cr1MoV	??490	??245	??22
ASTM A53 ASME SA53	A	??330	??205	??ASTM A53??? ??ASME SA53???
	B	??415	??240

???	???	??????(%)
		C	Si	Mn	P	S	Cu	Ni	Mo	Cr	V
GB/T8162	10	0.07-0.14	0.17-0.37	0.35-0.65	??0.035	??0.035	??0.25	??0.25	/	??0.15	/
	20	0.17-0.24	0.17-0.37	0.35-0.65	??0.035	??0.035	??0.25	??0.25	/	??0.25	/
	35	0.32-0.40	0.17-0.37	0.50-0.80	??0.035	??0.035	??0.25	??0.25	/	??0.25	/
	45	0.42-0.50	0.17-0.37	0.50-0.80	??0.035	??0.035	??0.25	??0.25	/	??0.25	/
	Q345	0.12-0.20	0.20-0.55	1.20-1.60	??0.035	??0.035	??0.25	??0.25	/	??0.25	/
	15CrMo	0.12-0.18	0.17-0.37	0.40-0.70	??0.035	??0.035	??0.25	??0.30	0.40-0.55	0.80-1.10	/
	12Cr1MoV	0.08-0.15	0.17-0.37	0.40-0.70	??0.035	??0.035	??0.25	??0.30	0.25-0.35	0.90-1.20	0.15-0.30
ASTMA53 ASMESA53	A	??0.25	/	??0.95	??0.05	??0.06	??0.40	??0.40	??0.15	??0.40	??0.08
	B	??0.30	/	??1.20	??0.05	??0.06	??0.40	??0.40	??0.15	??0.40	??0.08

????С???20#???????--????0510-88268136

20#????(GB/T8162-2008)
???	????	???	????	???	????	???	????
28*8	????	34*5	????	38*4.7	????	43*2	????
29*2.5	????	34*5.5	????	38*5	????	43*3	????
29*4	????	34*6	????	38*5	????	43*3.5	????
29*4.5	????	34*6.5	????	38*5.5	????	43*5	????
30*1.5	????	34*7	????	38*6	????	43*6	????
30*2	????	34*7.5	????	38*7	????	43*7	????
30*2.3	????	34*8	????	38*8	????	43*7.5	????
30*2.5	????	34*9	????	38*9	????	43*8	????
30*3	????	35*1.5	????	38*10	????	43*9	????
30*3.5	????	35*2	????	39*4	????	43*10	????
30*4	????	35*2.5	????	39*5	????	45*1.5	????
30*4.5	????	35*3	????	39*7	????	45*1.8	????
30*5	????	35*3.5	????	40*1.5	????	45*2	????