黑色金属硬度与强度换算.doc

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1、黑色金属硬度与强度换算（GB/T1172-1999）硬度抗拉强度σb/MPa洛氏表面洛氏维氏布氏碳钢铬钢铬钡钢铬镍钢铬钼钢铬镍钼钢铬锰硅钢超高强度钢不锈钢不分钢种HRCHRAHR15NHR30NHR45NHVHB30D2d10、2d5、4d2.5/mm17-67.337.915.62112114.1573.6706705772726-757-70372418-67.838.916.82162164.11753723719779737-769-71973719-68.339.8182212204.07771739735788749-782-737752

2、20-68.840.719.22262254.03790757751797761-796-75476721-69.341.720.42312274809775767807775-810-77378222-69.842.621.52372343.95829794785819789-825-79279923-70.343.622.72432403.91849814803831805-840-81281624-70.844.523.92492453.87870834823845821-856-83283525-71.445.525.12552513.838

3、92855843860838-874-85385426-71.946.426.32612573.78914876864876857876892-87587427-72.447.327.52682633.74937898886893877897910-89789528-7348.328.72742693.7961920909912897918930-91991729-73.549.229.92812763.65984943933932919941951-94294030-74.150.231.12892833.611009967959953943966

4、973-96690431-74.751.132.32962913.561034991985976967991996-99098932-75.25233.53042983.52106010161013100199310181020-1015101533-75.85334.73123063.481086104210421027102010471046-1041104234-76.453.925.93203143.431113106810721054104910771073-1067107035-7754.8373293233.39114110951104

5、1084107911081101-1095110036-77.555.838.23383323.341170112411361115111111411130-1126113137-78.156.739.43473413.31200115311711148114411761161-1153116338-78.757.640.63573503.261231118412061132117912121194-11841197397079.358.641.83673603.21126312161243121912161250122812181216123240

6、70.579.959.5433773703.1712961249128212571254129012641267125012684171.180.560.444.23883803.1313311284132212981294133113021315128613074271.681.161.345.43993913.0913671322136413401336137513421362132513474372.181.762.346.54114013.0514051361140713851379142013841409136613894472.682.3

7、63.247.74234133.0114451403145214311425146714271455141014344573.282.964.148.94364242.9714881448149814801472151614741502145714804673.783.56550.14494362.9315331497154715311522156715221550150815294774.28465.951.24624492.8915811549159715841573162015731600156315814874.784.666.852.447

8、84012.8516311605164916401626167616271652162316354975.3