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Grade B140 C32000
Corresponding Standard ASTM B140/B140M-2017
Copper-Zinc-Lead (Red Brass or Hardware Bronze) Rod, Bar and Shapes
Classification Copper and Copper Alloys
B140 C32000 Chemical Element Composition Content (%)
Component Fe Ni Cu Pb More
Minimum Value - - 83.5 1.5 Zn:余量
Maximum Value 0.1 0.25 86.5 2.2
B140 C32000 Mechanical Properties
condition Heat Treatment or Condition
Tensile Strength
σb
Mpa 		Yield Point
σs
Mpa 		Elongation or Extension Rate
δ
%
All products and sizes Softening Annealing (O60) ≥240 ≥70 ≥25
Strip; d ≤ 12 1/2 Hard (H02) ≥345 ≥205 ≥7
Strip; 12 < d ≤ 25 1/2 Hard (H02) ≥310 ≥185 ≥10
Strip; d > 25 1/2 Hard (H02) ≥275 ≥170 ≥12
Bars; t ≤ 25; s ≤ 50 1/2 Hard (H02) ≥275 ≥170 ≥12
Bar; t > 25; s > 50 1/2 Hard (H02) ≥275* ≥170* ≥12*
Strip; d ≤ 50 Hard (H04) ≥415 ≥345 ≤6
Bars; t ≤ 25; s ≤ 50 Hard (H04) ≥415 ≥345 ≥6

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