抗拉强度与硬度对照表抗拉强度N/mm2 维氏硬度布氏硬度洛氏硬度抗拉强度N/mm2维氏硬度布氏硬度洛氏硬度RmHVHBHRBRmHVHB HRB2508076112535033335.52708580.7111536034236.62859085.2119037035237.73059590.2122038036138.832010095125539037139.833510599.8129040038040.8350110105132041039041.8370115109135042039942.7380120114138543040943.6400125119142044041844.5415130124145545042845.3430135128148546043746.1450140133152047044746.9465145138155548045647480150143159549046648.4490155147163050047549.1510160152166551048549.8530165156170052049450.5545170162174053050451.1560175166177554051351.7575180171181055052352.3595185176184556053253610190181188057054253.6625195185192058055154.1640200190195559056154.7660205195199560057055.2675210199203061058055.7690215204207062058956.3705220209210563059956.8720225214214564060857.3740230219218065061857.875523522366058.377024022820.367058.878524523321.368059.280025023822.269059.782025524223.170060.1835260247247206185026525224.874061.886527025725.676062.588027526126.478063.390028026627.18006491528527127.882064.793029027628.584065.395029528029.286065.996530028529.888066.49953102953190067103032030432.292067.5106033031433.394068109534032334.4* HRB St12=65 St13=55 St14=50 硬度试验是机械性能试验中最简单易行的一种试验方法。为了能用硬度试验代替某些机械性能试验，生产上需要一个比较准确的硬度和强度的换算关系。实践证明，金属材料的各种硬度值之间，硬度值与强度值之间具有近似的相应关系。因为硬度值是由起始塑性变形抗力和继续塑性变形抗力决定的，材料的强度越高，塑性变形抗力越高，硬度值也就越高。
