MECHANICAL PROPERTY LIMITS
| Temper |
Tensile Strength |
Yield Strength |
Elongation |
Rockwell B Hardness* |
x1000PSI(N/mm²=KSI x 6.895)
x1000PSI(Kgf/mm²=KSI x .7031) |
nominal % in 2in.
(=% in 50 mm.) |
Nominal .020" gauge and over |
| 1/2 Hard |
57 - 67 |
51 |
30 |
|
| 1/4 Hard |
49 - 59 |
33 |
46 |
|
| 3/4 Hard |
64 - 74 |
62 |
16 |
|
| Annealed |
45 - 61 |
21 |
53 |
|
| Ex Hard |
83 - 92 |
83 |
3 |
|
| Ex Spring |
95 - 104 |
89 |
1 min |
|
| Hard |
71 - 81 |
72 |
10 |
|
| Spring |
91 - 100 |
86 |
1 min |
|
- Yield Strength - x1000PSI(Nominal .2% offset)(N/mm²=KSI x 6.895)
- Yield Strength - x1000PSI(Nominal .2% offset or range)(Kgf/mm²=KSI x .7031)
- Rockwell F, 30T, 15N, or H where noted
CHEMICAL COMPOSITION LIMITS (%)
| ASTM Spec Number |
Nominal Composition |
Density |
Module of Elasticity |
Electric Conductivity |
Thermal Conductivity |
Coefficient of Thermal Expansion |
| |
(a) |
(b) |
(c) |
(d) |
(e) |
| B36 |
Cu 70
Zn 30 |
0.308 |
16 |
28 |
70 |
11.1 |
- (a) X 106 PSI, tension (Kgf/mm² = KSI x .7031)
- (b) % IACS AT 68°F (20°C) as annealed
- (c) BTU•ft. @ 68°F ft²•hr•F (20°C)
- (d) Inches/inch/°F x 10-5 from 68°F to 572°F (20°C to 300°C)