您好!歡迎您訪問山東聊城凱泰管業有限公司的官方網站!
		
  | 
 鋼管種類  | 
 外徑(D)  | 
 鋼管壁厚(S)  | ||
| 
 冷拔管  | 
 鋼管外徑(mm)  | 
 允許偏差(mm)  | 
 鋼管壁厚(mm)  | 
 允許偏差(mm)  | 
| 
 >30-50  | 
 ±0.3  | 
 ≤30  | 
 ±10%  | |
| 
 >50-219  | 
 ±0.8%  | |||
| 
 熱軋管  | 
 >219  | 
 ±1.0%  | 
 >20  | 
 ±10%  | 
| 
 標準  | 
 牌號  | 
 抗拉強度(MPa)  | 
 屈服強度(MPa)  | 
 伸長率(%)  | 
 沖擊功(J)  | 
 低溫沖擊Akv  | 
| 
 GB6479  | 
 10  | 
 335-490  | 
 ≥205  | 
 ≥24  | 
 /  | 
 -20℃≥18  | 
| 
 20  | 
 410-550  | 
 ≥245  | 
 ≥24  | 
 ≥39  | 
 -20℃≥18  | |
| 
 16Mn  | 
 490-670  | 
 ≥320  | 
 ≥21  | 
 ≥47  | 
 -40℃≥21  | |
| 
 10MoWVNb  | 
 470-670  | 
 ≥295  | 
 ≥19  | 
 ≥62  | 
 | |
| 
 15CrMo  | 
 440-640  | 
 ≥235  | 
 ≥21  | 
 ≥47  | 
 | |
| 
 1Cr5Mo  | 
 390-590  | 
 ≥195  | 
 ≥22  | 
 ≥94  | 
 | |
| 
 12 Cr2Mo  | 
 450-600  | 
 ≥280  | 
 ≥20  | 
 ≥38  | 
 | 
| 
 標準  | 
 牌號  | 
 化學成分(%)  | |||||||
| 
 C  | 
 Si  | 
 Mn  | 
 P  | 
 S  | 
 Cr  | 
 Mo  | 
 Ni  | ||
| 
 GB6479  | 
 10  | 
 0.07-0.14  | 
 0.17-0.37  | 
 0.35-0.65  | 
 ≤0.030  | 
 ≤0.030  | 
 /  | 
 /  | 
 /  | 
| 
 20  | 
 0.17-0.24  | 
 0.17-0.37  | 
 0.35-0.65  | 
 ≤0.030  | 
 ≤0.030  | 
 /  | 
 /  | 
 /  | |
| 
 16Mn  | 
 0.12-0.20  | 
 0.20-0.60  | 
 1.20-1.60  | 
 ≤0.030  | 
 ≤0.030  | 
 | 
 | 
 | |
| 
 10MoWVNb  | 
 0.07-0.13  | 
 0.50-0.80  | 
 0.50-0.80  | 
 ≤0.030  | 
 ≤0.030  | 
 /  | 
 0.60-0.90  | 
 /  | |
| 
 15CrMo  | 
 0.12-0.18  | 
 0.17-0.37  | 
 0.40-0.70  | 
 ≤0.030  | 
 ≤0.030  | 
 0.80-1.10  | 
 0.40-0.55  | 
 /  | |
| 
 1Cr5Mo  | 
 ≤0.15  | 
 ≤0.50  | 
 ≤0.60  | 
 ≤0.030  | 
 ≤0.030  | 
 4.00-6.00  | 
 0.45-0.60  | 
 ≤0.60  | |
| 
 12Cr2Mo  | 
 0.80-0.15  | 
 ≤0.50  | 
 0.40-0.70  | 
 ≤0.030  | 
 ≤0.030  | 
 2.0-2.50  | 
 0.90-1.20  | 
 | |
						
  | ||