MTS軸管檢測分析結果-201306

1、MTS 軸管對比 1、化學成分（Tenaris offered） CMnSiCrMoCuPS標準與要求H Max0.290.900.401.200.300.250.0350.035Min0.220.600.900.15P Max0.311.000.451.250.330.290.0400.040Min0.200.550.850.12質(zhì)保書7203360.27-0.280.74-0.750.24-0.261.02-1.070.210.120.009-0.0130.001-0.0027221130.26-0.270.74-0.750.26-0.271.02-1.030.20-0.210.190.0

2、09-0.0100.001-0.0027233450.26-0.270.75-0.770.26-0.271.07-1.080.21-0.220.160.011-0.0130.001-0.0027233460.27-0.280.75-0.760.26-0.281.06-1.070.21-0.220.160.0120.002檢測件奔馳0.250.730.201.060.250.0410.0170.002奧迪0.27(0.29)-(0.73)0.25(0.19)1.10(1.17)0.22(0.26)0.16(0.02)0.012(0.013)0.002(0.001)寶鋼0.26(0.26)0.84

3、(0.84)0.21(0.22)1.04(1.06)0.21(0.22)0.11(0.11)0.009(0.009)0.003(0.005)2、淬硬性1.503.005.007.009.0011.0013.0015.0025.00MIN47.046.546.042.539.035.031.529.025.0MAX50.049.049.048.548.047.546.044.540.072033648.548.547.745.641.939.137.135.328.572211348.548.547.846.042.840.138.136.329.572334549.149.048.647.14

4、4.642.040.038.234.072334648.548.547.846.042.940.238.236.429.6下列數(shù)據(jù)為MTS軸管滲碳后的內(nèi)表面硬度分布 (不同爐次,僅供參考) 奔馳690(0.1)604(0.5)551(0.76)馬氏體級別:3級奧迪711(0.1)627(0.5)551(0.90)馬氏體級別:3級寶鋼702(0.1)648(0.5)551(0.93)馬氏體級別:3級3、組織正火正火+回火回火處理（處理（NT）組織組織（F+P）奧氏體晶粒度奧氏體晶粒度（5-99.0）夾雜夾雜A/2.5,1.5;B/1.5/1.0;C/0.5,0.5;D/1.5/1.0脫碳層脫碳層

5、外壁外壁(總深總深0.15,全脫全脫0.03)/內(nèi)壁內(nèi)壁(總深總深0.15,全脫全脫0.03)質(zhì)保書720336NTF+P6.0-7.0A/0.7,0.4;B0.7/0.4;C/0.0,0.0;D0.8/0.50.02,0.02/0.03,0.03722113NTF+P6.0A/0.0,0.0;B0.8/0.4;C/0.0,0.0;D0.8/0.50.02,0.02/0.03,0.03723345NTF+P7.0A/0.0,0.0;B0.7/0.4;C/0.0,0.0;D0.8/0.40.02,0.02/0.02,0.02723346NTF+P7.0A/0.0,0.0;B0.7/0.4;C/0

6、.0,0.0;D0.8/0.5檢測件奔馳NTF+PP間距細A/0.0,0.0;B0.5/0.5;C/0.0,0.0;D0.5/0.50.21,0.02/0.25,0.00奧迪NTF+PP間距2.8A/0.0,0.0;B0.5/0.5;C/0.0,0.0;D1.0/0.00.12.0.02/帶狀分布寶鋼NF+PP間距1.4A/0.0,0.0;B0.5/0.5;C/0.0,0.0;D1.0/0.00.14,0.05/未見3、組織 奔馳 奧迪 寶鋼4、機械與工藝性能Y.SU.T.SMax:630延伸率延伸率%Hardeness (外壁外壁/內(nèi)壁內(nèi)壁)擴口擴口(60度度)縮口縮口壓扁壓扁質(zhì)保書7203

7、36307-317572-57530.5722113315-316561-56831.0-32.0723345502-522619-62728.0-28.5723346312-315576-57833.5-34.0檢測件奔馳372-391586-59429.0-31.0HRBW86.0-87.0/86.0-87.5(HB168/170)65%完好完好完好奧迪297-304574-58826.5-30.0HRBW83.0-84.5/83.5-84.5(HB162/162)48%開裂完好完好寶鋼352-370604-61128.0-28.5HRBW96.5-97.5/98.5-100.0(HB22

8、0/237)65%完好完好完好5、尺寸精度壁厚，壁厚，mm外徑外徑內(nèi)經(jīng)內(nèi)經(jīng)外徑圓度外徑圓度內(nèi)徑圓度內(nèi)徑圓度內(nèi)外同內(nèi)外同軸度軸度直線度直線度粗糙度粗糙度Ra奔馳5.72-5.9939.987-39.99527.984-27.9960.005-0.0100.005-0.0130.07-0.270.04-0.070.40-0.65奧迪37.023-37.05927.007-27.0220.012-0.0260.009-0.0130.05-0.420.04-0.100.93-1.09寶鋼4.56-5.1236.960-37.01826.918-26.9650.011-0.0230.012-0.0300.04-0.420.04-0.090.85-1.186、旋鍛后的截面形貌1:奔馳; 2:奧迪;3:寶鋼(上:未滲碳,下:滲碳)旋鍛后的截面形貌上: 奧迪,下:寶鋼(左:未滲碳,右:滲碳)7、旋鍛后的組織（內(nèi)壁）奔馳（折疊/褶皺最大深度0.1mm） 奧迪（折疊/褶