Brass Alloy Hardness and Strength: Conversion Chart

As a manufacturer or engineer, understanding the hardness and strength of different metal alloys is crucial for selecting the right material for your project. In this blog post, we dive into the world of copper alloys, specifically brass and beryllium bronze, and provide a comprehensive conversion chart of their hardness and tensile strength values.

Related reading: Hardness Conversion Chart: HLD, HRC, HRB, HV, HB, HSD

Whether you’re a seasoned professional or just starting out in the industry, this information is a valuable resource that you won’t want to miss.

So, let’s get started!

Copper Alloy Hardness and Strength Conversion Values

(Excerpt from GB/T3771-1983)

Table 1

HardnessTensile strength
/MPa
BrinellVickersRockwellSurface RockwellBrass
HB30D2d10,2d5,4d2.5
/mm
HVHRBHRFHR15THR30THR45TPlateRod
σbσb
90.06.15990.553.787.177.250.826.7
92.06.10092.654.287.477.451.227.2
94.06.04294.754.887.777.651.627.7
96.05.98696.855.588.177.852.028.4
98.05.93198.956.288.578.052.529.1
100.05.878101.057.189.178.353.230.1
102.05.826103.158.089.678.653.831.0
104.05.775105.158.990.178.954.431.9
106.05.726107.260.090.779.255.132.9
108.05.678109.361.091.379.655.833.9
110.05.631111.462.191.979.956.535.0379392
112.05.585113.563.292.680.357436.2382397
114.05.541115.664.393.280.658.137.2386403
116.05.497117.765.493.881.058.838.2390408
118.05.454119.866.694.581.459.639.4394414
120.05.413121.967.795.184.760.340.5398420
122.05.372124.068.895.882.161.241.7402425
124.05.332126.169.996.482.561.942.7407431
126.05.293128.271.097.082.862.643.7412437
128.05.255130.372.197.783.263.44.9417443
130.05.218132.473.198.283.564.045.8422449
132.05.181134.574.198.883.864.746.8428456
134.05.145136.675.199.484.165.547.9434462
136.05.110138.676.1100.084.566.248.9440468
138.05.076140.777.0100.584.866.849.8446475
140.05.042142.877.9101.085.067.450.6453481
142.05.009144.978.8101.585.367.951.5460488
144.04.977147.079.7102.085.668.552.3467495
146.04.945149.180.5102.585.869.153.2474502
148.04.914151.281.2102.986.169.653.9482509
150.04.883153.382.0103.386.370.154.6489516
152.04.853155.482.7103.786.670.655.3498523
154.04.823157.583.3104.186.871.056.0506530
156.04.794159.684.0104.587.071.556.6514537
158.04.766161.784.6104.887.271.957.2523545
160.04.738163.885.2105.287.472.357.9532552
162.04.710165.985.7105.587.672.758.4541560
164.04.683168.086.3105.887.773.158.9551567
166.04.657170.186.8106.187.973.459.4561575
168.04.631172.187.4106.488.173.859.9571583

Table 2

HardnessTensile Strength
/MPa
BrinellVickersRockwellSurface RockwellBrassBeryllium Bronze
HB30D2d10、2d5、4d2.5/mmHVHRBHRFHR15THR30THR45TPlateRodPlateRod
σbσbσbσ0.2σ0.01σbσ0.2σ0.01
170.04.605174.287.9106.788.274.160.4581591556476332662374291
172.04.580176.388.4107.088.474.561.0591599562482337667382297
174.04.555178.488.8107.288.574.761.3602607569489342673390303
176.04.530180.589.3107.588.775.161.861361557649634767839809
178.04.506182.689.8107.889.875.462.3624624582503352683406314
180.04.483184.790.3108.189.075.862.8636632589509356689414320
182.04.459186.890.8108.489.276.163.4648640596516361694422326
184.04.436188.991.3108.789.476.563.9659649603523366700430332
186.04.414191.091.8109.089.576.964.4672658609530371705438337
188.04.392193.192.3109.289.777.164.7684666616537376711446343
190.04.370195.292.8109.589.877.565.3697675623543380717454349
192.04.348197.393.3109.890.077.865.8710684630550385722462355
194.04.327199.493.9110.290.278.366.5723693637557390728470360
196.04.306201.594.4110.490.378.566.8736702643564395734478366
198.04.285203.595.0110.890.679.067.5750712650570400740486372
200.04.265205.695.6111.190.779.468.0764721657577404746494378
202.04.244207.795.3111.590.979.868.7664584409752502383
204.04.225209.895.8111.891.280.269.2671591414758510389
206.04.205211.997.5112.291.480.769.9678598419764518395
208.04.186214.098.1112.691.681.170.6685604424770526401
210.04.167216.198.8113.091.881.671.3692611428776534406
HardnessTensile Strength
/MPa
BrinellVickersRockwellSurface RockwellBeryllium Bronze
HB30D2d10,2d5,4d2.5
/mm
HVHRCHRAHR15NHR30NHR45NPlateRod
σbσ0.2σ0.01σbσ0.2σ0.01
212.04.148218.218.059.269.738.917.3699618433782542412
214.04.129220.318.459.468.239.217.8706625438789550418
216.04.111222.418.859.668.439.618.3713631443795558424
218.04.093224.519.159.868.539.918.6720638447801566429
220.04.075226.619.560.068.840.319.1727645452808574435
288.03.581297.830.765.775.150.932.19738756151047845631
290.03.569299.931.065.875.251.232.59808826201054852637
292.03.557301.931.265.975.451.432.79888896251062860642
294.03.545304.031.566.175.551.733.19958966301070868648
296.03.534306.131.866.275.751.933.410039026341077876654
298.03.522308.232.166.475.952.233.810109096391085884660
300.03.511310.332.466.576.052.534.110189166441093892665
302.03.500312.432.766.776.252.834.410269236491100900671
304.03.489314.533.066.976.453.134.810339296541108908677
306.03.478316.633.267.076.553.335.010419366581116916683
308.03.467318.733.567.176.753.635.410489436631124924688
310.03.456320.833.867.376.853.835.710569506681131932694
312.03.445322.934.167.477.054.136.110649576731139940700
314.03.434325.034.367.577.154.336.310719636771147948706
316.03.424327.134.667.777.354.636.710799706821155956711
318.03.413329.234.967.877.454.97.010879776871163964717
320.03.403331.335.268.077.655.237.410949846921171972723
322.03.393333.435.468.177.755.437.611029906971179980729
324.03.383335.435.768.277.955.638.011109977011187988734
326.03.372337.536.068.478.155.938.3111710047061195996740
328.03.636339.636.268.578.256.138.51125101171112031004746
330.03.353341.736.568.678.356.438.91133101871612101012752
332.03.343343.836.768.778.556.639.11141102472112181020757
334.03.333345.937.068.978.656.939.51149103172512271028763
336.03.323348.037.369.078.857.139.81156103873012351036769
338.03.314350.137.569.178.957.340.11164104573512431044775
340.03.304352.237.869.379.157.640.41172105174012511052780
342.03.295354.338.069.479.257.840.61180105874512591060786
344.03.28636.438.369.579.358.141.01188106574912671068792
346.03.276358.538.569.779.558.341.21196107275412751076798
348.03.267360.638.869.879.658.641.61204107975912831084803
350.03.258362.739.069.979.858.841.81211108576412911091809
352.03.249364.839.370.179.959.042.21219109276912991099815
354.03.240366.939.570.280.159.242.41227109977313071107821
356.03.231368.939.970.480.259.642.91235110677813161115826
358.03.223371.040.270.580.459.943.21243111278313241123832
360.03.214373.140.470.680.560.143.41251111978813321131838
362.03.205375.240.670.780.760.343.71259112679213401139844
364.03.197377.340.970.980.860.644.01267113379713481147849
366.03.188379.441.171.080.960.844.21275113980213561155855
368.03.180381.541.371.181.060.944.51283114680713651163864
370.03.171383.641.571.281.161.144.71294115381213731171867
372.03.163385.741.771.381.361.344.91299116081613811179872
374.03.155387.842.071.481.461.645.31307116782113891187878
376.03.147389.942.271.581.561.845.51315117382613971195884
378.03.138392.042.471.681.762.045.81324118083114061203890
380.03.130394.142.771.881.862.346.11332118783614141211895
382.03.122396.242.971.981.962.546.3134011948401422
384.03.114398.343.272.082.162.746.7134812008451430
386.03.107400.343.472.182.262.946.9135612078501438
388.03.099402.443.672.282.363.147.2136412148551447
390.03.091404.543.972.482.563.447.5137212218601455
392.03.083406.644.172.582.663.647.7138112288641463
394.03.076408.744.372.682.763.848.0138912348691471
396.03.068410.844.672.882.964.148.3139712418741480
398.03.061412.944.872.983.064.348.6140512488791488
400.03.053415.045.073.083.164.448.8141312558841496
402.03.046417.145.373.183.364.749.114221504
404.03.038419.245.573.283.464.949.414301512
406.03.031421.345.773.383.565.149.614381521
408.03.024423.445.973.483.665.349.814471529
410.03.017425.546.273.683.865.650.214551537
412.03.009427.646.473.783.965.850.414631545
414.03.002429.746.673.884.066.050.714721553
416.02.995431.84.873.984.166.250.914801562
418.02.988433.847.074.084.366.451.114881570
420.02.981435.947.374.184.466.651.514971578
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Shane
Author

Shane

Founder of MachineMFG

As the founder of MachineMFG, I have dedicated over a decade of my career to the metalworking industry. My extensive experience has allowed me to become an expert in the fields of sheet metal fabrication, machining, mechanical engineering, and machine tools for metals. I am constantly thinking, reading, and writing about these subjects, constantly striving to stay at the forefront of my field. Let my knowledge and expertise be an asset to your business.

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