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SG610E(12MnNiVR)首鋼SG610E丨12MnNiVR技術參數

產品描述:首鋼 SG610E(12MnNiVR) 一、 首鋼 SG610E(12MnMiVR)定義 牌號SG610E是永首鋼的拼音縮寫SG 、最低抗拉強度(單位MPa)數值、表示大線能量焊接特性的英文Energy首位字母E組成。 二、 交貨狀態 鋼...
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首鋼SG610E(12MnNiVR)
一、首鋼SG610E(12MnMiVR)定義 
牌號SG610E是永首鋼的拼音縮寫“SG、最低抗拉強度(單位MPa)數值、表示大線能量焊接特性的英文Energy首位字母“E”組成。
二、交貨狀態
鋼板以離線淬火加回火的調質熱處理狀態交貨,其中回火溫度不得低于600℃,當要求鋼板作消除應力狀態熱處理(SR)時,SR鋼板最后回火溫度不低于610℃.調質以“QT”表示。
冶煉方法,鋼由氧氣轉爐冶煉,并經真空處理。
 
、SG610E(12MnMiVR)化學成分(熔煉分析%
C Si Mn P S Mo V Ni Cr Pcma
0.13 0.15~0.40 1.20~1.60
0.015

0.005
0.30 0.02~0.06 0.15~0.40 0.30 0.23
 
 
四、SG610E(12MnMiVR)力學性能和工藝性能
 
牌號 板厚(mm) 拉伸試驗(橫向) V型沖擊試驗(橫向)b
抗拉強度RmMPa 下屈服強度RelmMPa 斷后延伸率A% 溫度℃ 沖擊功J 冷彎實驗180° b=2a
SG610E(12MnMiVR) 10~<20c 610~730 ≥490 ≥17 -20 ≥100 d=3a
20~40 610~730 ≥490 ≥18 -20 ≥100 d=3a
a 屈服現象不明顯時采用Rpo2
b 厚度>25mm的鋼板,可進行1/2厚度的橫向V型沖擊試驗,-20℃沖擊功值≥80J
C 厚度<12mm的鋼板,橫向V型沖擊試樣寬度采用7.5mm,-20℃沖擊功值≥75J
 
 五、尺寸、外形、重量及允許偏差
鋼板的最小公稱厚度為10mm,鋼板的厚度允許偏差執行GB/T 709-2006中B類或C類偏差,鋼板沿寬度方向的不平度不得超過6mm/m。鋼板按理論重量交貨時,鋼板密度為7.85kg/dm3,并應執行GB/T709-2006中9.2條的規定,即理論計重所采用的厚度為允許的最大厚度和最小厚度的平均值,其余執行GB/T 709-2006的規定。
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