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								| 低合金高強(qiáng)度結(jié)構(gòu)鋼 GB/T 1591-94 | 
							   
							  
								|   雙擊自動(dòng)滾屏 | 
								發(fā)布者:qywl 發(fā)布時(shí)間:2010/3/30 閱讀:3675次 【字體:大 中 小】 | 
							   
							  
								
									  
低合金高強(qiáng)度結(jié)構(gòu)鋼 GB/T 1591-94
| 
 牌號等級  | 
 化學(xué)成份(%)  |  
| 
 Mn  | 
 Si≤  | 
 P ≤  | 
 S ≤  | 
 V  | 
 Nb  | 
 Ti  | 
 C ≤  | 
 Al≥  | 
 Cr≤  | 
 Ni≤  |  
| 
 Q295  | 
 A  | 
 0.80-1.50  | 
 0.55  | 
 0.045  | 
 0.045  | 
 0.02-0.15  | 
 0.015-0.06  | 
 0.02-0.20  | 
 0.16  | 
    | 
    | 
    |  
| 
 Q295  | 
 B  | 
 0.80-1.50  | 
 0.55  | 
 0.040  | 
 0.040  | 
 0.02-0.15  | 
 0.015-0.06  | 
 0.02-0.20  | 
 0.16  | 
    | 
    | 
    |  
| 
 Q345  | 
 A  | 
 1.00-1.60  | 
 0.55  | 
 0.045  | 
 0.045  | 
 0.02-0.15  | 
 0.015-0.06  | 
 0.02-0.20  | 
 0.02-0.20  | 
    | 
    | 
    |  
| 
 Q345  | 
 B  | 
 1.00-1.60  | 
 0.55  | 
 0.040  | 
 0.040  | 
 0.02-0.15  | 
 0.015-0.06  | 
 0.02-0.20  | 
 0.02-0.20  | 
    | 
    | 
    |  
| 
 Q345  | 
 C  | 
 1.00-1.60  | 
 0.55  | 
 0.035  | 
 0.035  | 
 0.02-0.15  | 
 0.015-0.06  | 
 0.02-0.20  | 
 0.02-0.20  | 
 0.015  | 
    | 
    |  
| 
 Q345  | 
 D  | 
 1.00-1.60  | 
 0.55  | 
 0.030  | 
 0.030  | 
 0.02-0.15  | 
 0.015-0.06  | 
 0.02-0.20  | 
 0.18  | 
 0.015  | 
    | 
    |  
| 
 Q345  | 
 E  | 
 1.00-1.60  | 
 0.55  | 
 0.025  | 
 0.025  | 
 0.02-0.15  | 
 0.015-0.06  | 
 0.02-0.20  | 
 0.18  | 
 0.015  | 
    | 
    |  
| 
 Q390  | 
 A  | 
 1.00-1.60  | 
 0.55  | 
 0.045  | 
 0.045  | 
 0.02-0.20  | 
 0.015-0.06  | 
 0.02-0.20  | 
 0.02-0.20  | 
    | 
 0.30  | 
 0.7  |  
| 
 Q390  | 
 B  | 
 1.00-1.60  | 
 0.55  | 
 0.040  | 
 0.040  | 
 0.02-0.20  | 
 0.015-0.06  | 
 0.02-0.20  | 
 0.02-0.20  | 
    | 
 0.30  | 
 0.7  |  
| 
 Q390  | 
 C  | 
 1.00-1.60  | 
 0.55  | 
 0.035  | 
 0.035  | 
 0.02-0.20  | 
 0.015-0.06  | 
 0.02-0.20  | 
 0.02-0.20  | 
 0.015  | 
 0.30  | 
 0.7  |  
| 
 Q390  | 
 D  | 
 1.00-1.60  | 
 0.55  | 
 0.030  | 
 0.030  | 
 0.02-0.20  | 
 0.015-0.06  | 
 0.02-0.20  | 
 0.02-0.20  | 
 0.015  | 
 0.30  | 
 0.7  |  
| 
 Q390  | 
 E  | 
 1.00-1.60  | 
 0.55  | 
 0.025  | 
 0.025  | 
 0.02-0.20  | 
 0.015-0.06  | 
 0.02-0.20  | 
 0.02-0.20  | 
 0.015  | 
 0.30  | 
 0.7  |  
| 
 Q420  | 
 A  | 
 1.00-1.70  | 
 0.55  | 
 0.045  | 
 0.045  | 
 0.02-0.20  | 
 0.015-0.06  | 
 0.02-0.20  | 
 .02-0.20  | 
    | 
 0.4  | 
 0.7  |  
| 
 Q420  | 
 B  | 
 1.00-1.70  | 
 0.55  | 
 0.040  | 
 0.040  | 
 0.02-0.20  | 
 0.015-0.06  | 
 0.02-0.20  | 
 0.02-0.20  | 
    | 
 0.4  | 
 0.7  |  
| 
 Q420  | 
 C  | 
 1.00-1.70  | 
 0.55  | 
 0.035  | 
 0.035  | 
 0.02-0.20  | 
 0.015-0.06  | 
 0.02-0.20  | 
 0.02-0.20  | 
 0.015  | 
 0.4  | 
 0.7  |  
| 
 Q420  | 
 D  | 
 1.00-1.70  | 
 0.55  | 
 0.030  | 
 0.030  | 
 0.02-0.20  | 
 0.015-0.06  | 
 0.02-0.20  | 
 0.02-0.20  | 
 0.015  | 
 0.4  | 
 0.7  |  
| 
 Q420  | 
 E  | 
 1.00-1.70  | 
 0.55  | 
 0.025  | 
 0.025  | 
 0.02-0.20  | 
 0.015-0.06  | 
 0.02-0.20  | 
 0.02-0.20  | 
 0.015  | 
 0.4  | 
 0.7  |  
| 
 Q460  | 
 C  | 
 1.00-1.70  | 
 0.55  | 
 0.035  | 
 0.035  | 
 0.02-0.20  | 
 0.015-0.06  | 
 0.02-0.20  | 
 0.02-0.20  | 
 0.015  | 
 0.7  | 
 0.7  |  
| 
 Q460  | 
 D  | 
 1.00-1.70  | 
 0.55  | 
 0.030  | 
 0.030  | 
 0.02-0.20  | 
 0.015-0.06  | 
 0.02-0.20  | 
 0.02-0.20  | 
 0.015  | 
 0.7  | 
 0.7  |  
| 
 Q460  | 
 E  | 
 1.00-1.70  | 
 0.55  | 
 0.025  | 
 0.025  | 
 0.02-0.20  | 
 0.015-0.06  | 
 0.02-0.20  | 
 0.02-0.20  | 
 0.015  | 
 0.7  | 
 0.7  |   
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