BRASSES
Comparative Specifications
Nominal Chemical Analysis
Mechanical Properties
TECHNI-CAST MB1 MB2 MB3 MB4 YB1 YB2 YB3 YB4
FEDERAL QQ-C-390A, CA 865 QQ-C-390A, CA 862 QQ-C-390A, CA 863 QQ-C-390A, CA 864 QQ-C-390A, CA 855 QQ-C-390A, CA 857 QQ-C-390A, CA 854 QQ-C-390A, CA 852
QQ-C-390, C3 QQ-C-390, C4 & C5 QQ-C-390. C6 & C7 QQ-C-390, C2 QQ-C-390, A5 QQ-C-390, A1 & A2 QQ-C-390, A4 QQ-C-390, A4
QQ-B-726e, CI. A QQ-B-726e, CI. B QQ-B-726e, C1.C QQ-B-726e, CI. D QQ-B-621b, CI. B QQ-B-621b, CI. B QQ-B-621b, C1. C
(QQ-B-728, CI. A) (QQ-B-728, CI. B)
MILITARY MIL-C-15345g, #4 MIL-C-15345g, #5 MIL-C-15345g, #6 MIL-C-15345g, #2 MIL-C-15345g, #3
MIL-C-15345A, #8 MIL-C-15345A, #9 MIL-C-15345A, #10 MIL-C-15345A, #7
MIL-B-16443, CI. 1 MIL-B-16522, CI. 2 & 3 MIL-B-16522, CI.1
NAVY 49B3f, CI.a 46B29a, CI.b 46B29a, CI.a 46B10h 46B11h, Gr. I 46B11h, Gr. II
ASTM B-147, CA 865 B-147, CA 862 B-147, CA 863 B-147, CA 864 B-146, CA 857 B-146, CA 854 B-146, CA 852
B-147, 8A B-147, 8B B-147, 8C B-147, 7A B-146, 6C B-146, 6B B-146, 6A
B-584, C86500 B-584, CA86200 B-22, C86300 B-584, C86400 B-584, C85700 B-584, C85400 B-584, C85200
B-271, C86500 B-271, CA86200 B-584, C86300 B-271, C86400 B-271, C85700 B-271, C85400 B-271, C85200
B-271, C86300
SAE C86500 C86200 C86300 C86400 C85500 C85700 C85400 C85200
43 430A 430B 41
AMS 4860 4862
COPPER 58.00 64.50 64.00 59.00 61.00 63.00 67.00 72.00
TIN 0.75 0.75 0.75 1.00 1.00 1.00
LEAD 1.00 1.00 3.00 3.00
ZINC 38.75 24.75 24.00 36.75 37.50 34.75 29.00 24.00
IRON 1.00 3.00 3.00 1.00
ALUMINUM 1.00 4.50 5.75 1.00 0.75 0.25
MANGANESE 0.50 3.25 3.25 0.50
TENSILE STRENGTH, psi 75,000 100,000 115,000 66,000 62,000 50,000 37,000 38,000
YIELD STRENGTH, psi 32,000 55,000 80,000 26,000 25,000 18,000 14,000 15,000
ELONGATION % 30 20 16 25 40 40 38 38
HARDNESS, BRINELL 156 210 228 132
Wrought specifications are listed in parenthesis.