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万璽氏换算表,洛氏换算表硬度符号:为避免混淆用不同冲击装置测量得到的里氏值;由里氏值换算出的其它硬度值与其它各种方法测得的其它各种硬度值;推荐使用下列符号:612 LD341 HBLD354 HVL硬度 的里 氏值Ld:用冲击装置D测得的里氏值HBLD:换算成布氏硬度的里氏值HVLd:换算成维氏硬度的里氏值hrcld :换算成洛 氏35.9HRCLd扩展换算表的建立:对于特殊用途,使用者可扩充各个换算表,但必须注意下列各点:必须使用标准冲击装置D校验里氏硬度测试仪的正确读数.必须用相应测量范围的试块校验各种静态测试仪的性能.相关硬度值的测试点应尽可能接近,为得到分别用静、动态方法测得的一对可比硬度值. 一般需1015 (动态)里氏硬度值进行平均,对三个静态压痕硬度值进行平均.合金工具钢Coldwork tool steel灰铸铁和球墨铸铁Cast iron with lamellar and nodular graphite铸铝合金Castaluminium alloys铜锌合金(黄铜)Copper-zinc alloys (brass)钢和铸钢Steel and cast steel铜铝合金/铜锡合金(青铜)Copper-aluminium alloys/copper-tin alloys(bronzes)纯铜Wrought copper alloys.low alloyed(弹性模量钢和铸钢210000N/mm2)里氏一维氏里氏一洛氏里氏一布氏550万诚仪器设备网www.szhchkj.com600650700750800-5-10-16-22-4-9-15-20-4-8-14-19-4-8-13-18-3-7-12-17-3-6-11-16-3-6-10-15-2-5-9-14(弹性模量钢和铸钢210000N/mm2)LdHVHB(F=30D2)HRBHRCHSD300808038.4302818139.4304828240.3306838341.3308848442.3310858543.2312868644.2314878745.1316888846.0318898946.9320909047.8322919148.7324929349.6326939450.4328949551.3330959652.2332969753.0334979853.8336989954.633810010055.534010110256.334210210357.1LdHVHB(F=30D2)HRBHRCHSD40014214076.340214314176.940414514377.44061471447&04081481457&541015014779.041215114879.541415315080.041615515180.541815615381.042015815481.542215915682.042416115782.442616315882.942816416083.443016616283.843216816384.343417016584.743617116685.143817316885.644017516986.044217617186.434410310457.834610410558.634810610659.435010710760.135210810960.935410911061.635611111162.435811211263.136011311463.836211511564.536411611665.236611711765.936811911966.637012012067.237212112167.937412312268.637612412469.237812612569.838012712670.538212812871.138413012971.738613113072.338813313272.939013413373.539213613474.139413713674.739613913775.239814013875.840014214076.344417817286.844618017487.244818217587.74501831778& 14521851798&44541871808&845618918289.245819118489.646019218590.046219418790.346419618990.746619819091.146820019291.447020119491.847220319592.147420519792.547620719992.847820920093.248021120293.548221320493.848421520694.248621620794.548821820994.849022021195.249222221395.549422421595.849622621696.149822821896.450023022096.7上表中的值适用于经热轧、热锻及热处理的低合金钢及铸钢(弹性模量钢和铸钢210000N/mm2)LdHVHB(F=30D2)HRBHRCHSD50050250450650851051251451651852052252452652853053253453653854054254454654855055255455655856023023223423623824024224424624825025225425625826026326526726927127327527728028228428628829129322022222422622722923123323523723924124324524724925125325525725926126326526726927127427627828096.797.097.497.79&09&39&69&999.299.520.020.420.721.021.421.722.122.422.723.123.423.724.124.424.725.025.425.726.026.326.626.927.327.627.928.232.532.833.133.333.633.934.234.534.735.035.335.635.936.236.436.737.037.337.637.938.238.538.739.039.339.639.940.240.540.841.1LdHVHB(F=30D2)HRBHRCHSD60033932634.247.060234232834.547.360434433134.847.660634733335.147.960834933635.348.261035233835.648.561235434135.948.861435734336.249.161635934636.549.461836234836.749.762036435137.050.062236735337.350.362436935637.650.662637235837.950.96283753613& 151.26303773643&451.56323803663&751.86343833693&952.26
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