Friday, June 25, 2010

硬度对照表www.tool-tool.com

版1ec34-02w00

Bewise Inc. www.tool-tool.com Reference source from the internet.

根据德国标准DIN50150,以下是常用范围的钢材抗拉强度与维氏硬度、布氏硬度、洛氏硬度的对照表。

抗拉强度
Rm
N/mm2


维氏硬度
HV


布氏硬度
HB


洛氏硬度
HRC

250


80


76.0


-

270


85


80.7


-

285


90


85.2


-

305


95


90.2


-

320


100


95.0


-

335


105


99.8


-

350


110


105


-

370


115


109


-

380


120


114


-

400


125


119


-

415


130


124


-

430


135


128


-

450


140


133


-

465


145


138


-

480


150


143


-

490


155


147


-

510


160


152


-

530


165


156


-

545


170


162


-

560


175


166


-

575


180


171


-

595


185


176


-

610


190


181


-

625


195


185


-

640


200


190


-

660


205


195


-

675


210


199


-

690


215


204


-

705


220


209


-

720


225


214


-

740


230


219


-

755


235


223


-

770


240


228


20.3

785


245


233


21.3

800


250


238


22.2

820


255


242


23.1

835


260


247


24.0

850


265


252


24.8

865


270


257


25.6

880


275


261


26.4

900


280


266


27.1

915


285


271


27.8

930


290


276


28.5

950


295


280


29.2

965


300


285


29.8

995


310


295


31.0

1030


320


304


32.2

1060


330


314


33.3

1095


340


323


34.4

1125


350


333


35.5

1115


360


342


36.6

1190


370


352


37.7

1220


380


361


38.8

1255


390


371


39.8

1290


400


380


40.8

1320


410


390


41.8

1350


420


399


42.7

1385


430


409


43.6

1420


440


418


44.5

1455


450


428


45.3

1485


460


437


46.1

1520


470


447


46.9

1555


480


(456)


47.7

1595


490


(466)


48.4

1630


500


(475)


49.1

1665


510


(485)


49.8

1700


520


(494)


50.5

1740


530


(504)


51.1

1775


540


(513)


51.7

1810


550


(523)


52.3

1845


560


(532)


53.0

1880


570


(542)


53.6

1920


580


(551)


54.1

1955


590


(561)


54.7

1995


600


(570)


55.2

2030


610


(580)


55.7

2070


620


(589)


56.3

2105


630


(599)


56.8

2145


640


(608)


57.3

2180


650


(618)


57.8


660


58.3


670


58.8


680


59.2


690


59.7


700


60.1


720


61.0


740


61.8


760


62.5


780


63.3


800


64.0


820


64.7


840


65.3


860


65.9


880


66.4


900


67.0


920


67.5


940


68.0

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。

下面是本站根据由实验得到的经验公式制作的快速计算器,有一定的实用价值,但在要求数据比较精确时,仍需要通过试验测得。

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