bedra28000

Regular Brass

Characteristics:

This alloy is a high-zinc, two-phase (α+β) brass from the copper-zinc binary system. It exhibits high strength and excellent hot workability, and it can be easily processed by various forming and machining operations. Additionally, it is readily brazed and welded, and it offers good corrosion resistance.

Typical applications:

It is suitable for deep drawing and bending operations used to produce stress-bearing accessories, such as pins, rivets, washers, nuts, conduits, pneumatic gauges, springs, screens, and radiator parts.

Standardization and composition

UNS	C28000
EN	/
JIS	C2800
GB	T27600 (H62)
Cu	60.5-63.5 %
Pb	≤ 0.08 %
Fe	≤ 0.15 %
Zn	Balance %

Physical properties①

Note①：The testing temperature is 20℃. Note②：The testing temperature range is 20℃ to 300℃.

Density(g/cm³)	8.44
Electrical conductivity(%IACS)	27
Thermal conductivity(W/(m·K))	114
Coefficient of thermal expansion ②(10⁻⁶/K)	19.7
Modulus of elasticity(GPa)	110

Fabrication Properties

Note③：C36000 = 100% Note④：C37700 = 100%

Capacity for being cold worked	Fair
Capacity for being hot formed	Excellent
Brazing	Excellent
Machinability rating ③	40%
Forgeability ④	90%

Mechanical Properties

Temper	Diameter(mm)	Tensile Strength(min.MPa)	Yield Strength(min.MPa)	Elongation(min.A%)	Hardness(HRB)
H02	10 ≤ Ф ≤ 40	370	270	12	30-90
H02	40 ＜ Ф ≤ 80	335	105	24	30-90

Dimension Tolerance and Delivery Forms

Note⑤：The tolerances listed in the table are specified as all plus or all minus. When tolerances are specified as plus and minus (±), half the values given.

			Straight bar		Coil wire
Diameter (mm)	Tolerance④(mm)	Ovality (mm max.)	Length (mm max.)	Straightness (mm/m max.)	ID (mm)	Weight (kg)
10≤Ф＜18	0.04	0.02	3600	1.0	1200	50
18≤Ф＜25	0.06	0.03	3660	1.0	-	-
25≤Ф＜40	0.10	0.05	3660	1.0	-	-
40≤Ф＜60	0.15	0.075	3660	1.0	-	-
60≤Ф≤80	0.30	0.15	3000	1.0	-	-