品名碳钢无缝管规格6X1-73X10材质20#,16Mn,40Cr产地/厂家见表断面形状圆形类型.冷拔或冷轧精密无缝钢管壁厚6（mm）外径76（mm）公称通径小口径精密钢管常用规格10#0.07~0.130.17~0.370.35~0.65≤0.035≤0.03520#0.17~0.230.17~0.370.35~0.65≤0.035≤0.03535#0.32~0.390.17~0.370.35~0.65≤0.035≤0.03545#0.42~0.500.17~0.370.50~0.80≤0.035≤0.03540cr0.37~0.440.17~0.370.50~0.80≤0.035≤0.0350.08~1.1025Mn0.22~0.20.17~0.370.70~1.00≤0.035≤0.035≤0.2537Mn50.30~0.390.15~0.301.20~1.50≤0.015≤0.020电话13863510405)