国精产品一区一区三区,97久久精品无码一区二区,欧美老妇大P毛茸茸,两根黑人粗大噗嗤噗嗤视频

?????????-???????????426*40mm-GB9948????????377*40

?????????????426*40??????GB9948

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

???	???	???????(MPa)	???????(MPa)	????(%)	?????(J)	???????(HB)	??????
GB9948	10	330-490	??205	??24	/	/	????
	20	410-550	??245	??21	??39	/	????
	15CrMo	440-640	??235	??21	??47	??170	???????
	1Cr2Mo	??390	??175	??22	??92	??179	???????
	1Cr5Mo	??390	??195	??22	??92	??187	???

???	???	??????
		C	Si	Mn	P	S	Cr	Mo	Ni
GB9948	10	0.07-0.14	0.17-0.37	0.35-0.65	??0.035	??0.035	??0.15	/	??0.25
	20	0.17-0.24	0.17-0.37	0.35-0.65	??0.035	??0.035	??0.25	/	??0.25
	15CrMo	0.12-0.18	0.17-0.37	0.40-0.70	??0.035	??0.035	0.80-1.10	0.40-0.55	??0.30
	1Cr2Mo	??0.15	0.50-1.00	0.30-0.60	??0.035	??0.030	2.15-2.85	0.45-0.65	/
	1Cr5Mo	??0.15	??0.50	??0.60	??0.035	??0.030	4.00-6.00	0.45-0.60	??

??		???
?????(mm)	???????	?????(mm)	???????
?? 30	?? 0.20mm	?? 3	+12 % ,-10 %
> 30??50	?? 0.30mm	> 3	??12 %
> 50	?? 0.8%

???	???????(MPa)	???????(MPa)	????(%)	?????(J)	???????(HB)	??????
10	330-490	?? 205	?? 24	/	/	????
20	410-550	?? 245	?? 21	?? 39	/	????
12CrMo	410-560	?? 205	?? 21	?? 55	?? 156	???????
15CrMo	440-640	?? 235	?? 21	?? 47	?? 170	???????
1Cr2Mo	?? 390	?? 175	?? 22	?? 92	?? 179	???????
1Cr19Ni9	?? 520	?? 205	?? 35	/	/	????
1Cr19Ni11Nb	?? 520	?? 205	?? 35	/	/	????

???	??????
	C	Si	Mn	P	S	Cr	Mo	Ni	Nb+Ti
10	0.17-0.14	0.17-0.37	0.35-0.65	??0.035	??0.035	??0.15	/	??0.25	/
20	0.17-0.24	0.17-0.37	0.35-0.65	??0.035	??0.035	??0.25	/	??0.25	/
12CrMo	0.08-0.15	0.17-0.37	0.40-0.70	??0.035	??0.035	0.40-0.70	0.40-0.55	??0.30	/
15CrMo	0.12-0.18	0.17-0.37	0.40-0.70	??0.035	??0.035	0.80-1.10	0.40-0.55	??0.30	/
1Cr2Mo	?? 0.15	0.50-1.00	0.30-0.60	??0.035	??0.030	2.15-2.85	0.45-0.65	/	/
1Cr19Ni9	0.04-0.10	?? 1.00	?? 2.00	??0.035	??0.030	18.00-20.00	/	8.00-11.00	/
1Cr19Ni11Nb	0.04-0.10	?? 1.00	?? 2.00	??0.035	??0.030	17.00-20.00	/	9.00-13.00	??8C-1.00