Brass Coil
CW508L (Ms63) and CW505L (Ms70) brass coil, 0.10–1.00 mm thick and up to 660 mm wide; narrower widths for press tooling are supplied as Slit Brass Strip.

Grades and sizes
MS63
An unleaded brass containing about 63 % copper and 37 % zinc. It has good cold formability and is suitable for bending, blanking, deep drawing and spinning. It is easily soldered and brazed, and can be polished and plated. It is one of the most widely used brasses for pressed and deep-drawn parts, electrical connection components, radiators and decorative parts.
Strip standard: EN 1652
MS70
An unleaded brass containing about 70 % copper and 30 % zinc. Its ductility and cold formability are among the highest of all brasses, making it suitable for more demanding deep drawing and tight-radius bending than MS63. It can be soldered, brazed and polished. Used for ammunition cases, deep-drawn cups and shells, radiator parts and precision pressings.
Strip standard: EN 1652
- THICKNESS
- 0.10–1.00 mm
- WIDTH
- Up to 660 mm
- TEMPER
- Soft · Half-hard · Hard
- NARROW WIDTHS
- Slit to the width you need (Slit Brass Strip), minimum 60 kg
For large-quantity orders, other cut sizes are possible.
Tempers
EN 1652 values (0.2 mm and above): material condition designation and tensile strength. For thinner strip, values are available on request.
| TEMPER | MS63 · CuZn37 | MS70 · CuZn30 | TYPICAL USE |
|---|---|---|---|
| Soft (annealed) | R300 · 300–370 N/mm² | R270 · 270–350 N/mm² | Deep drawing, tight-radius bending |
| Half-hard | R350 · 350–440 N/mm² | R350 · 350–430 N/mm² | General purpose, blanking |
| Hard | R410 · 410–490 N/mm² | R410 · 410–490 N/mm² | Flat parts that will not be formed and require strength |
Chemical composition, mechanical properties and material certificates are available on request.
Brass coil weight calculator
Calculate the weight from the length, or the length from a given weight. Your selections are added to the quote message automatically.
Size: 0.5 × 100 mm, 100.0 m (theoretical ~42.20 kg)
For other brass sizes, weight-per-metre tables and densities, see the Brass weight calculator →
Applications
- Small stamped parts
- Electrical terminals and connectors
- Radiator and heat exchanger fins
- Gaskets and washers
- Deep-drawn parts (CW505L / Ms70)
Frequently asked questions
How should I specify the size when ordering strip?
Sizes are stated as thickness × width plus the total weight in kg, for example 0.50 × 100 mm, 60 kg. The calculator gives the length corresponding to that weight.
What are the designations for MS63 and MS70?
MS63: CuZn37, EN CW508L, DIN 2.0321, UNS C27200, BS CZ108. MS70: CuZn30, EN CW505L, DIN 2.0265, UNS C26000, BS CZ106. Any of these designations can be used in your enquiry; we will match the correct material.
Why can the invoiced weight differ from the calculated weight?
The calculator gives the theoretical weight. The actual weight varies with dimensional tolerances and cutting allowance; we invoice on the actual weight as weighed.
What information should I send for a quote?
We only need the grade, temper, size (thickness × width), total weight in kg and delivery location. If you fill in the calculator above, these details are added to the WhatsApp message automatically.
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