- 產品概述
60-90kg級低焊接裂紋敏感性高強度鋼板
60-90 kg/cm2 Low Welding Crack Susceptibility High Strength Steel Plates
本產品系屈服強度460、500、550、620、690、800MPa的低焊接裂紋敏感性鋼，具有省略焊前預熱、焊后無需熱處理的優良的焊接性能，可用于各種煤礦機械、工程機械、港口機械、建筑機械及其它要求良好焊接性的結構部件等。
These serie products are the low welding crack susceptibility high strength steel plates with the yield strength more than 460、500、550、620、690、800MPa. The products have good weldability to meet the welding requirements,without taking preheating and post heating.They are suitable to be used in coal mining machinery ,engineering mechanical equipment,port machinery,construction machinery equipment and other conditions of good weldability.
Q460CFC/D/E Q500CFC/D/E Q550CFC/D/E Q620CFC/D/E | 標準：YB/T4137-2005《《低焊接裂紋敏感性高強度鋼板》 standard:YB/T4137-2005《Low Welding Crack Susceptibility High Strength Steel Plates》 |
Q690CFC/D/E | |
Q800CFC/D/E | |
JG670CF JG785CF | 協議：JGX698-2011《JG670CF、JG785CF低焊接裂紋敏感性高強度鋼板技術協議》 protocol: JGX698-2011 《Technical Protocol for JG670CF、JG785CF Low Welding Crack Susceptibility High Strength Steel Plates》 |
3.1 產品規格/ Product Specification
8～80×2200～3800×6000～12000mm
3.2 化學成分/ Chemical Composition
熔煉成分/Heat Composition, %
牌號 Steel Grade | C | Si | Mn | P | S | 其它微合金等 Other Microalloy etc. | CEV | Pcm | |
Q460CFC/D/E | ≤0.12 | ≤0.50 | ≤1.80 | ≤0.020 | ≤0.010 | 適量 adding | / | ≤0.20 | |
Q500CFC/D/E | |||||||||
Q550CFC/D/E | ≤0.25 | ||||||||
Q620CFC/D/E | |||||||||
Q690CFC/D/E | |||||||||
Q800 CFC/D/E | ≤0.28 | ||||||||
JG670CF | ≤30 | ≤0.12 | ≤0.55 | ≤1.80 | ≤0.020 | ≤0.015 | ≤0.43 | ≤0.22 | |
＞30 | ≤0.45 | ≤0.25 | |||||||
JG785CF | ≤30 | ≤0.45 | ≤0.23 | ||||||
＞30 | ≤0.48 | ≤0.25 | |||||||
3.3 力學性能/ Mechanical Property
力學性能/ Mechanical Property
牌號 Steel Grade | 規格/ Size mm | 屈服強度/ Yield Strength Rp0.2，MPa | 抗拉強度/ Tensile Strength Rm，MPa | 延伸率 Elongation A，% | 180°彎曲試驗/ Bending Test ，B=2a | 夏比沖擊試驗，縱向 Impact Test Longitudinal | |
試驗溫度/ Test Temperature ℃ | KV2 ，J | ||||||
Q460CFC/D/E | ≤50 | ≥460 | 550～710 | ≥17 | d=3a | （C ）0 （D ）-20 （E ）-40 | ≥47
|
＞50～80 | ≥440 | ||||||
Q500CFC/D/E | ≤50 | ≥500 | 610～770 | ≥17 | |||
＞50～80 | ≥480 | ||||||
Q550CFC/D/E | ≤50 | ≥550 | 670～830 | ≥16 | |||
＞50～80 | ≥530 | ||||||
Q620CFC/D/E | ≤50 | ≥620 | 710～880 | ≥15 | |||
＞50～80 | ≥600 | ||||||
Q690CFC/D/E | ≤50 | ≥690 | 770～930 | ≥14 | |||
＞50～80 | ≥670 | ||||||
Q800CFC/D/E | ≤50 | ≥800 | 880～1050 | ≥12 | |||
JG670CF | ≤16 | ≥550 | 670～830 | ≥14 | 0 | ≥47 | |
＞16～80 | ≥530 | ||||||
JG785CF | ≤50 | ≥690 | 770～930 | A50≥14 | |||
＞50～80 | ≥670 | ||||||
該類產品在重慶大江、濟寧等煤機廠、廈門工程機械企業進行了成功的實際應用。
These productions have been applied in Chongqing Dajiang Company, Xiamen Engineering Machinery Co.LTD.
相關新聞
- 中國寶武與山鋼集團確定重組 鋼鐵并購潮或有助于提高鐵礦石采購話語權 2021-07-24
- Q345B鋼板斷裂后的伸長率和塑性變形能力 2021-08-02
- 鋼的壓力加工方法 2021-02-01
- 熱處理Q345B鋼板的彎曲回彈 2021-07-29
- 優化了不同厚度Q235B鋼板的終軋溫度 2021-07-28
- 山東：省國資委與中國寶武籌劃對山鋼集團戰略重組 2021-07-24
- Q235B鋼板嚴重裂紋的原因 2021-08-03
- 鋼材長度尺寸 2021-02-01
- 鑒別假冒偽劣鋼材的幾種方法 2021-02-01
- 冷軋鋼板氧化鐵氧化皮壓制 2021-07-27
