Brass
Brass business, the foundation of human civilization

Forging Brass Alloys
Suitable for hot forging, precision forging, and upsetting processes
Application
Plumbing fittings, fire protection components, gas valves, industrial machinery parts and other forged brass components
Range Of Production
Shape | Extruded Rods(mm) | Drawn Rods(mm) | Length |
|---|---|---|---|
Round | 20 ~ 120 | 2 ~ 71 | Over 2 meters (Additional cutting process required for lengths below 2 meters) |
Square | 14 ~ 80 | 5 ~ 50 | |
Hexagonal | 14 ~ 90 | 4 ~ 66 | |
Hollow | Available upon request | ||
Packaging Conditions
Domestic Sales
- MOQ: 400 KGS
- PP band strapping, Products with diameters below 12 mm are packed in 25 kg bundles and then bulk-packed
Export Sales
- MOQ: 400KG
- Available in wooden crates or paperboard packaging (500 kg / 1,000 kg)
- Wooden Crate Packaging : Standard packaging + polyethylene wrapping + steel banding
- Paperboard Packaging: Standard packaging + paperboard outer packaging
Handling Specifications and Materials
Chemical Composition
Alloys | Standard | Chemical Composition (wt.%) | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Cu | Pb | Fe | Sn | Fe+Sn | Al | Ni | As | Zn | ||
C3771 | KS | 57.0-61.0 | 1.0-2.5 | - | - | 1.0↓ | - | - | - | Rem. |
JIS | 57.0-61.0 | 1.0-2.5 | - | - |
| - | 0.2↓ | 0.02↓ | Rem. | |
C37700 | ASTM | 58.0-61.0 | 1.5-2.5 | 0.30↓ | - | - | - | - | - | Rem. |
C34500 | ASTM | 62.0-65.0 | 1.5-2.5 | 0.15↓ | - | - | - | - | - | Rem. |
CuZn40Pb2 | EN | 57.0-59.0 | 1.6-2.2 | 0.30↓ | 0.30↓ | - | 0.05↓ | 0.30↓ | - | Rem. |
CuZn42 | EN | 57.0-59.0 | 0.20↓ | 0.30↓ | 0.30↓ | - | 0.05↓ | 0.30↓ | - | Rem. |
CuZn38Pb2 | EN | 60.0-61.0 | 1.6-2.5 | 0.20↓ | 0.20↓ | - | 0.05↓ | 0.30↓ | - | Rem. |
Dimensional Tolerances(mm)
Standard | Drawn Rods | ||
|---|---|---|---|
Diameter | Tolerance(Round) | Tolerance(Other Shapes) | |
KS/JIS | 2 ~ 3 | ±0.03 | ±0.05 |
3.01 ~ 6 | ±0.04 | ±0.06 | |
6.01 ~ 10 | ±0.04 | ±0.08 | |
10.01 ~ 20 | ±0.06 | ±0.11 | |
20.01 ~ 35 | ±0.08 | ±0.18 | |
35.01 ~ 50 | ±0.10 | ±0.25 | |
50.01 ~ | ±0.3% | ±0.6% | |
ASTM | ~3.81 | ±0.033 | ±0.063 |
3.82~12.7 | ±0.038 | ±0.076 | |
12.71~25.4 | ±0.050 | ±0.101 | |
25.41~50.8 | ±0.063 | ±0.127 | |
50.81~ | ±0.15% | ±0.30% | |
EN | 1 ~ 3 | -0.04 | -0.06 |
3.01 ~ 6 | -0.05 | -0.08 | |
6.01 ~ 10 | -0.06 | -0.09 | |
10.01 ~ 18 | -0.07 | -0.11 | |
18.01 ~ 30 | -0.08 | -0.13 | |
30.01 ~ 50 | -0.16 | -0.16 | |
50.01 ~ 80 | -0.19 | -0.19 | |
Standard | Extruded Rods | ||
|---|---|---|---|
Diameter | Tolerance(Round) | Tolerance(Other Shapes) | |
KS | 6 ~ 30 | +0.3 | -0.3 |
30.01 ~ 100 | +1% | -1% | |
JIS | 6 ~ 25 | ±0.3 | |
25.01 ~ 100 | ±1% | ||
ASTM | ~25.4 | ±0.25 | |
25.41 ~ 50.8 | ±0.38 | ||
50.81 ~ 76.2 | ±0.63 | ||
76.21 ~ 88.9 | ±0.88 | ||
88.91 ~ 101.6 | ±1.52 | ||
EN | 6 ~ 9.99 | ±0.20 | |
10 ~ 17.99 | ±0.25 | ||
18 ~ 29.99 | ±0.30 | ||
30 ~ 49.99 | ±0.60 | ||
50 ~ 79.99 | ±0.70 | ||