Copper Nickel 70/30 Round Bar Supplier
Saltwater Is Its Home Turf — WNR 2.0882 Copper Nickel 70/30 Round Bar from Multinox Inc, Stocked for Marine & Offshore Projects Worldwide
Available Forms & Types
Most Common
Round Bars
Cold drawn, centreless ground & polished. Used in shafts, fasteners, machined components.
- OD: 4mm to 500mm
- Bright / Polish / Black finish
- Length: 1–6 metres
Precision
Hex Bars
Across-flat 18mm–57mm. Ideal for bolt, nut & valve body machining applications.
- 18mm – 57mm A/F
- Cold drawn condition
- Non-magnetic grade
Structural
Square Bars
Used in structural fabrication, tooling and engineering. Custom sizes available.
- 18mm – 47mm
- Bright / Rough Turned
- Custom sizes on request
Wide Range
Flat Bars
Width ½" to 10", thickness 2mm to 150mm. Sheared & edged or hot-rolled condition.
- Width: ½" to 10"
- Thickness: 2–150mm
- Custom width available
Hollow
Hollow Bars
Seamless hollow bar for bushings, sleeves & valve bodies. Saves machining time.
- OD: 4mm to 100mm
- Various wall thickness
- Centreless ground
High Strength
Forged Bars
Hot forged for superior grain structure. Heavy-duty industrial and aerospace use.
- 15mm to 300mm
- Ultrasonic tested
- Rough turned finish
Diameters, Lengths & Certification Details
Every Copper Nickel 70/30 Round Bar ships with full mill certification — naval and offshore auditors approve without questions.
| Product Name | Cupro Nickel 70/30 Round Bar |
| Material Grade | Cu-Ni 70/30 |
| UNS Number | C71500 |
| Werkstoff No. | 2.0882 |
| Specifications | ASTM B151 / ASME SB151 |
| Standards | ASTM, ASME, DIN, EN, BS, JIS |
| Diameter | 5 mm to 500 mm |
| Length | 100 mm to 6000 mm, Custom Cut Length |
| Condition | Hot Rolled, Cold Drawn, Annealed, Forged |
| Surface Finish | Black, Bright, Polished, Rough Turned, Pickled |
| Forms | Round, Square, Hexagonal, Flat, Rectangle, Billet, Forged |
| Tolerance | H8-H13, K9-K12 or As Per Customer Requirement |
| Test Certificate | EN 10204 3.1, Mill Test Certificate (MTC), PMI Test, Third Party Inspection |
Chemical Composition of ASTM B151 Copper Nickel 70/30 Round Bar
Iron added in small, controlled doses sharpens the seawater defence of Copper Nickel 70/30 Round Bar even further.
Cu
Balance (65.0 Min)
Copper
Ni
29.0 – 33.0%
Nickel
Fe
0.40 – 1.00%
Iron
Mn
1.00 Max
Manganese
Pb
0.05 Max
Lead
Zn
1.00 Max
Zinc
check Equivalent Grades of UNS C71500 Round Bar
Military specs call it MIL-C-15726F, Europe calls it EN CuNi30Mn1Fe — Copper Nickel 70/30 Round Bar carries both identities proudly.
UNS
C71500
Unified Numbering System
W-Nr
2.0882
Werkstoff Number
EN
CuNi30Mn1Fe
European Standard
MIL
MIL-C-15726F
Military Specification
MIL-C-15726F Round Bar Mechanical Properties
Shipbuilders value Copper Nickel 70/30 Round Bar for its calm, predictable performance — no surprises even after years submerged.
| Property | Value |
|---|---|
| Density | 8.94 g/cm³ |
| Melting Point | 1240°C |
| Tensile Strength | 345 MPa (50 ksi) |
| Yield Strength (0.2% Offset) | 138 MPa (20 ksi) |
| Elongation | 30% |
| Hardness | 80 HRB (Approx.) |
| Modulus of Elasticity | 152 GPa |
| Thermal Conductivity | 29 W/m·K |
| Electrical Resistivity | 0.34 µΩ·m |
EN CuNi30Mn1Fe Round Bar — Weight Chart
| Diameter (mm) | Weight (Kg/Meter) |
|---|---|
| 6 | 0.25 |
| 8 | 0.45 |
| 10 | 0.70 |
| 12 | 1.01 |
| 16 | 1.80 |
| 20 | 2.81 |
| 25 | 4.39 |
| 30 | 6.32 |
| 40 | 11.24 |
| 50 | 17.56 |
| 60 | 25.29 |
| 75 | 39.52 |
| 100 | 70.26 |
UNS C71500 Round Bar Size Range
| Product Form | Available Size |
|---|---|
| Round Bar | 5 mm – 500 mm Diameter |
| Square Bar | 5 mm – 100 mm |
| Hex Bar | 5 mm – 100 mm |
| Flat Bar | 3 mm – 100 mm Width |
| Forged Bar | Up to 500 mm Diameter |
| Length | 100 mm, 1 Meter, 3 Meter, 6 Meter & Custom Cut Length |
| Available Shapes | Round, Square, Hexagonal, Flat, Rectangle, Billet, Forged |
Recent Copper Nickel 70/30 Round Bar Export Deliveries
🇸🇦
Saudi Aramco Total
Al Jubail, Saudi Arabia
MIL-C-15726F Bright Round Bars, 20mm Diameter
Delivered in 7 days
🇺🇸
Hess Corporation
New York City, USA
UNS C71500 Peeled & Turned Bars, 42mm
Delivered in 14 days
🇬🇧
Shell PLC
London, United Kingdom
EN CuNi30Mn1Fe Polished Round Bars, 28mm
Delivered in 14 days
🇦🇪
ADNOC
Abu Dhabi, UAE
ASTM B151 Cold Drawn Round Bars, 55mm
Delivered in 5 days
🇿🇦
Sasol Limited
Johannesburg, South Africa
80mm Centerless Ground Bars, Copper Nickel 70/30
Delivered in 21 days
🇩🇪
BASF SE
Ludwigshafen, Germany
WNR 2.0882 Hot Rolled Black Bars, 48mm
Delivered in 18 days
Availability stock of MIL-C-15726F Round Bar
| Copper Nickel 70/30 Bright Round Bar | ASTM B151 Black Round Bar |
| UNS C71500 Polished Round Bar | MIL-C-15726F Peeled Round Bar |
| WNR 2.0882 Turned Round Bar | EN CuNi30Mn1Fe Ground Round Bar |
| Copper Nickel 70/30 Cold Drawn Round Bar | ASTM B151 Hot Rolled Round Bar |
| MIL-C-15726F Peeled & Polished Round Bar | UNS C71500 Centerless Ground Round Bar |
| ASTM B151 Bright Bar | WNR 2.0882 Black Bar |
| EN CuNi30Mn1Fe Polished Bar | Copper Nickel 70/30 Peeled Bar |
| UNS C71500 Turned Bar | MIL-C-15726F Ground Bar |
| WNR 2.0882 Cold Drawn Bar | EN CuNi30Mn1Fe Hot Rolled Bar |
| EN CuNi30Mn1Fe Peeled & Polished Bar | Copper Nickel 70/30 Centerless Ground Bar |
Latest Prices of ASTM B151 Copper Nickel 70/30 Round Bar
Multinox INC offers EN CuNi30Mn1Fe Round Bars at one of the most competitive prices in India. Request the latest Pricelist using the contact form here.