Shreya coppers is noted as one of the leading 63/37 brass tubes manufacturers.
These are manufactured by our expert technicians in compliance with the predefined norms and standards set out in the field to ensure outstanding efficiency, longevity, sturdy design, efficient service, and corrosion resistance. They are manufactured to satisfy the most stringent market requirements.
We offer our 63/37 Brass tubes in both standard and customized types. They are reasonably priced and are used in varied industries across the globe. With our comprehensive knowledge of this sector, we are fully engaged in providing an outstanding quality range of 63/37 Brass Tubes.
The standard proportion of 63/37 brass is 63% Cu and 37% Zn containing a small amount of Arsenic.
Reputed 63/37 Brass Tubes Manufacturerss
Once zinc is added to copper, it increases the power of this type of brass, providing it a whole new set of features. These brasses are commonly used in various applications due to their corrosion resistance and strength, color, and design, as well as their weldability, durability, and ease of operation.
63/37 brass is being used in various applications such as in fasteners, plumbing accessories, snap buttons, deep drawn parts, radiator tanks, and cores, lamp fixtures, rivets, hinges, flashlight shells, buttons, pins, electrical industry components, zippers, stamped parts, eyelet fasteners, connectors, flashlights, radiator tubes, automobile light reflectors, style jewelry, etc. We provide brass tubes products in various specifications.
All our brass tubes have a high degree of precision, dimensional accuracy, and excellent corrosion resistance. These tubes are supplied in various sizes, hardness, and a variety of formats where each tube is wrapped and packed in a protective way for easy management and safe delivery.
63/37 Brass tube is easy to braze, weld, works under the cold and below ambient temperature and they are extremely resistant to most types of corrosion.
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Sugar Industry

Sanitary Fittings & Accessories

Hardware and Accessories
- Hand Pumps and Agriculture Equipment
- General Engineering
- Also used in the manufacturing of writing instruments, surgical instruments, radiators, brush ware, pressure gauge instruments, handrails, handicrafts, etc. Our 3mm tube is extensively used in a cross ball-pen refill shell. Similarly, tubes are also supplied for jotter refill shells, 4 color ball pen refill shells, various ball pen shells, etc.
- Excellent performance
- Superior durability
- Rugged construction
- Corrosion resistance
- Superior rust-proof finish
- Accurate dimensions
- Drift test
- Flattening test
- Mercurous nitrate test
- Hydraulic test as per specification.
ALLOY |
STD APPLIED |
ALLOY DENOTATION |
SYMBOL |
CU |
PB |
FE |
ZN |
P |
AL |
SN |
AS |
TOTAL IMPURITIES |
Sc Brass 63/37 |
BS |
– | – | – | – | – | – | – | – | – | – | – |
ASTM | B-135 |
C-27200 |
62.0-65.0 |
0.07 |
0.07 |
REMAIN |
– | – | – | – | ||
DIN | 17671 |
CuZn 37 |
62.0-64.0 |
0.1 |
0.1 |
REMAIN | – | – | 0.1 |
– | 0.1 | |
NFA | – |
– |
– | – | – | – | – | – | – | – | – | |
JIS | H 3300 |
C 2700 |
63.0-67.0 |
0.07 | 0.05 |
REMAIN | – | – | – | – | ||
IS | 407 |
CuZn 37 |
62.0-65.0 |
0.3 |
0.1 |
REMAIN | – | – | – | 0.06 |
0.06 |
ALLOY | STD APPLIED |
SYMBOL | CONDITION | YIELD, STRENGTH N/mm2 |
TENSILE N/mm2 |
ELONGATION % |
HARDNESS HV 5 |
GRAIN SIZE Mm (75X) |
Sc Brass 63/37 |
BS |
– | ||||||
ASTM |
C 27200 |
H 58, H 80 |
– | 370 MIN., 455 MIN. |
– |
– | – | |
DIN |
CuZn 37 | F 29, F 37 |
180 MAX, 200 MIN. |
290-370, 370-440 |
50 MIN, 27MIN |
– | – | |
NFA |
– |
– |
– | – |
– |
– | – | |
JIS |
C 2700 | 0, 1/2H, H |
– | 294MIN, 373MIN , 451MIN. |
40MIN, 20MIN |
– | .025-.06 | |
IS | CuZn 37 |
O, TA, HD |
– | 285MIN, 320MIN, 400MIN. |
– | 80MAX, 80-110, 130MIN. |
– |