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化肥設備用高壓管 GB6479-1986（熱軋）
尺寸公差標準尺寸(mm)許可偏差GB6479-1986外徑≤159+1.25%，-1.0%>159+1.25%，-1.5%壁厚3-20+12.5%,-15%>20±12.5%標準縱向力學性能交貨狀況GB6479-1986鋼號抗拉強度(MPa)屈服強度(MPa)延伸率(%)衝擊(J)布氏硬度不小於不大於熱軋態
10330-49020524--20410-502452139-12CrMo410-5602052155156回火處理15CrMo440-64023521471701Cr2Mo≥(390)(175)(22)(79)(79)回火處理化學成份鋼號CMnSiCrMoNiSP100.07-0.140.35-0.650.17-0.37≤0.15-≤0.25≤0.035≤0.035200.17-0.240.35-0.650.17-0.37≤0.25-≤0.25≤0.035≤0.03512CrMo0.08-0.150.40-0.700.17-0.370.40-0.700.40-0.55≤0.30≤0.035≤0.03515CrMo0.12-0.180.40-0.700.17-0.370.80-1.100.40-0.55≤0.30≤0.035≤0.0351Cr2Mo≤0.150.30-0.600.50-1.002.15-2.850.45-0.65≤0.30≤0.035≤0.030化肥設備用高壓管(GB6479-1986)網--化肥設備用高壓管(GB6479-1986)詳情--化肥設備用高壓管(GB6479-1986)