Naval Brass Sheet & Plate
Overview
Naval brass adds tin to the copper-zinc base, dramatically improving resistance to dezincification and seawater corrosion. MEI manufactures naval brass sheets and plates in both IS 291 grades for marine, shipbuilding, and heat-transfer applications where standard brass would deteriorate — combining the strength and machinability of brass with proven saltwater durability.
SIZE RANGE
| Parameter | Min | Max |
|---|---|---|
| Sheet thickness | 0.10 mm | 6.00 mm |
| Sheet width / length | 10 mm | 1500 mm / 2500 mm |
| Plate thickness | 6.00 mm | 80.00 mm |
| Plate width / length | 50 mm | 1300 mm / 2500 mm |
GRADES OFFERED
| MEI Grade | Alloy / Common Name | Cu (%) | Sn (%) | Pb (%) | India IS | ISO | USA ASTM | Japan JIS | UK BS |
|---|---|---|---|---|---|---|---|---|---|
| MEI-62 | Naval Brass Grade 1 | 61.00–63.50 | 1.00–1.50 | ≤0.200 | IS 291 | CuZn36Sn1 | — | — | CZ112 |
| MEI-61 | Naval Brass Grade 2 | 59.00–62.00 | 0.50–1.00 | ≤0.200 | IS 291 | CuZn39Sn | C46400 | C4640 | — |
Fe ≤ 0.100% in both grades. Zn = remainder. Tin content verified by spectro analysis on every heat.
TEMPER REFERENCE
| Temper | VPN (Vickers Hardness) |
|---|---|
| Soft | 55 – 70 |
| LHA | 75 – 85 |
| HA (Quarter Hard) | 90 – 110 |
| HB (Half Hard) | 110 – 130 |
| HD (Full Hard) | 130 – 165 |
| HE (Extra Hard) | 165 – 175 |
| HS (Spring Hard) | 180 – 220 |
APPLICATIONS
Precision shipboard equipment, pressure vessels, condenser plates and tube sheets, heat exchangers, marine hardware, baffle plates, seawater piping components, and dock and harbour fittings.
WHY MEI
Accurate tin addition controlled at the melt — the property that makes naval brass naval — verified by spectro analysis on every heat, with both IS 291 grades available from stock or against order.