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| 鋼管種類(lèi) | 外徑(D) | 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 | >3~20 | ±10% |  | 
| 標準 | 牌號 | 抗拉強度(MPa) | 屈服強度(MPa) | 伸長(cháng)率(%) | 硬度 | 
| GB3087 | 10 | 335~475 | ≥195 | ≥24 | / | 
| 20 | 410~550 | ≥245 | ≥20 | / |  | 
| GB5310 | 20G | 410~550 | ≥245 | ≥24 | / | 
| 20MnG | ≥415 | ≥240 | ≥22 | / |  | 
| 25MnG | ≥485 | ≥275 | ≥20 | / |  | 
| 15CrMoG | 440~640 | ≥235 | ≥21 | / |  | 
| 12Cr2MoG | 450~600 | ≥280 | ≥20 | / |  | 
| 12Cr1MoVG | 470~640 | ≥255 | ≥21 | / |  | 
| 12Cr2MoWVTiB | 540~735 | ≥345 | ≥18 | / |  | 
| 10Cr9Mo1VNb | ≥585 | ≥415 | ≥20 | / |  | 
| ASME SA210 | SA210A-1 | ≥415 | ≥255 | ≥30 | ≤143HB | 
| SA210C | ≥485 | ≥275 | ≥30 | ≤179HB |  | 
| ASME SA213 | SA213 T11 | ≥415 | ≥205 | ≥30 | ≤163HB | 
| SA213 T12 | ≥415 | ≥220 | ≥30 | ≤163HB |  | 
| SA213 T22 | ≥415 | ≥205 | ≥30 | ≤163HB |  | 
| SA213 T23 | ≥510 | ≥400 | ≥20 | ≤220HB |  | 
| SA213 T91 | ≥585 | ≥415 | ≥20 | ≤250HB |  | 
| SA213 T92 | ≥620 | ≥440 | ≥20 | ≤250HB |  | 
| DIN17175 | ST45.8/Ⅲ | 410~530 | ≥255 | ≥21 | / | 
| 15Mo3 | 450~600 | ≥270 | ≥22 | / |  | 
| 13CrMo44 | 440~590 | ≥290 | ≥22 | / |  | 
| 10CrMo910 | 480~630 | ≥280 | ≥20 | / |  | 
| 標準  | 牌號  | 化學(xué)成分(%)  | ||||||||||||||
| C  | Si  | Mn  | P  | S  | Cr  | Mo  | Cu  | Ni  | V  | Al  | W  | Ti  | Nb  | N  | ||
| GB3087  | 10  | 0.07~0.13  | 0.17~0.37  | 0.38~0.65  | ≤0.030  | ≤0.030  | 0.3~0.65  | /  | ≤0.25  | ≤0.30  | /  | /  |  |  |  |  | 
| 20  | 0.17~0.23  | 0.17~0.37  | 0.38~0.65  | ≤0.030  | ≤0.030  | 0.3~0.65  | /  | ≤0.25  | ≤0.30  | /  | /  |  |  |  |  |  | 
| GB5310  | 20G  | 0.17~0.24  | 0.17~0.37  | 0.35~0.65  | ≤0.030  | ≤0.030  | ≤0.25  | ≤0.15  | ≤0.20  | ≤0.25  | ≤0.08  |  |  |  |  |  | 
| 20MnG  | 0.17~0.24  | 0.17~0.37  | 0.70~1.00  | ≤0.030  | ≤0.030  | ≤0.25  | ≤0.15  | ≤0.20  | ≤0.25  | ≤0.08  |  |  |  |  |  |  | 
| 25MnG  | 0.18~0.24  | 0.17~0.37  | 0.80~1.10  | ≤0.030  | ≤0.030  | ≤0.25  | ≤0.15  | ≤0.20  | ≤0.25  | ≤0.08  |  |  |  |  |  |  | 
| 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  | ≤0.20  | ≤0.30  |  |  |  |  |  |  |  | 
| 12Cr2MoG  | 0.08~0.15  | ≤0.50  | 0.40~0.70  | ≤0.030  | ≤0.030  | 2.00~2.50  | 0.90~1.20  | ≤0.20  | ≤0.30  |  |  |  |  |  |  |  | 
| 12Cr1MoV  | 0.08~0.15  | 0.17~0.37  | 0.40~0.70  | ≤0.030  | ≤0.030  | 0.90~1.20  | 0.25~0.35  | ≤0.20  | ≤0.30  | 0.15~0.30  |  |  |  |  |  |  | 
| 12Cr2MoWVTiB  | 0.08~0.15  | 0.45~0.75  | 0.45~0.65  | ≤0.030  | ≤0.030  | 1.60~2.10  | 0.50~0.65  | ≤0.20  | ≤0.30  | 0.28~0.42  |  | 0.30~0.55  | 0.08~0.15  | B 0.002~0.008  |  |  | 
| 10Cr9Mo1VNb  | 0.08~0.12  | 0.20~0.50  | 0.30~0.60  | ≤0.020  | ≤0.010  | 8.00~9.50  | 0.85~1.05  | ≤0.20  | ≤0.40  | 0.18~0.25  | ≤0.015  |  |  | 0.06~0.10  | 0.03~0.07  |  | 
| ASME SA210  | SA210A-1  | 0.13~0.19  | ≥0.1  | 0.45~0.65  | ≤0.030  | ≤0.030  |  |  |  |  |  |  |  |  |  |  | 
| SA210C  | 0.18~0.24  | ≥0.1  | 0.80~1.10  | ≤0.030  | ≤0.030  |  |  |  |  |  |  |  |  |  |  |  | 
| ASME SA213  | SA213 T11  | 0.05~0.15  | 0.50~1.0  | 0.30~0.60  | ≤0.030  | ≤0.030  | 1.00~1.50  | 0.50~1.00  |  |  |  |  |  |  |  |  | 
| SA213 T12  | 0.05~0.15  | ≤0.50  | 0.30~0.61  | ≤0.030  | ≤0.030  | 0.80~1.25  | 0.44~0.65  |  |  |  |  |  |  |  |  |  | 
| SA213 T22  | 0.05~0.15  | ≤0.50  | 0.30~0.60  | ≤0.030  | ≤0.010  | 1.90~2.60  | 0.87~1.13  |  |  |  |  |  |  |  |  |  | 
| SA213 T23  | 0.04~0.10  | ≤0.50  | 0.10~0.60  | ≤0.030  | ≤0.030  | 1.90~2.60  | 0.05~0.30  |  |  |  | ≤0.030  | 1.45~1.75  | B 0.0005~0.006  | 0.02~0.08  | ≤0.040  |  | 
| SA213 T91  | 0.08~0.12  | 0.20~0.50  | 0.30~0.60  | ≤0.020  | ≤0.010  | 8.00~9.50  | 0.85~1.05  |  | ≤0.40  | 0.18~0.25  | ≤0.015  |  |  | 0.06~0.10  | 0.03~0.07  |  | 
| SA213 T92  | 0.07~0.13  | ≤0.50  | 0.30~0.60  | ≤0.020  | ≤0.010  | 8.50~9.50  | 0.30~0.60  |  | ≤0.40  | 0.15~0.25  | ≤0.015  | 1.50~2.00  | B 0.001~0.006  | 0.04~0.09  | 0.03~0.07  |  | 
| DIN 17175  | ST45.8/Ⅲ  | ≤0.21  | 0.10~0.35  | 0.40~1.20  | ≤0.040  | ≤0.040  |  |  |  |  |  |  |  |  |  |  | 
| 15Mo3  | 0.12~0.20  | 0.10~0.35  | 0.40~0.80  | ≤0.035  | ≤0.035  |  | 0.25~0.35  |  |  |  |  |  |  |  |  |  | 
| 13CrMo44  | 0.10~0.18  | 0.10~0.35  | 0.40~0.70  | ≤0.035  | ≤0.035  | 0.70~1.10  | 0.45~0.65  |  |  |  |  |  |  |  |  |  | 
| 10CrMo910  | 0.08~0.15  | ≤0.50  | 0.30~0.70  | ≤0.025  | ≤0.020  | 2.00~2.50  | 0.90~1.10  | ≤0.30  | ≤0.30  |  | ≤0.015  |  |  |  |  |  | 
公司鋼管主營(yíng)業(yè)務(wù):無(wú)錫厚壁鋼管,江蘇合金管,江蘇鋼管廠(chǎng),無(wú)錫無(wú)縫管,無(wú)錫高壓鍋爐管
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