Why Fabricators Trust Our Cu-Ni Bar Mill Stock First?
PMI Checked Cu-Ni Heats
Every billet is spot-tested for copper & nickel ratio .
Rolled To ASTM B151 Norms
Correct anneal cycle keeps ductility and corrosion resistance fully intact.
Round, Hex & Square Stock
Round, hex, square & flat sections rolled to your exact size.
Heat-Wise Traceability
Every bar length carries a heat number matched to its MTC.
Ready Stock, Quick Dispatch
Fast-moving dia cut, & bundled within days of confirmed order.
Cupro Nickel Round Bar Quick Facts
- 1Bar Family: Round, Hex, Square, Flat & Forged Sections
- 2Size Coverage: 5mm to 250mm Dia | Custom Forged Billets
- 3Governing Standard: ASTM B151, ASME SB151, UNS C70600 / C71500
- 4Surface Options: Hot Rolled, Cold Drawn, Bright, Polished
- 5Common Marking: Cu-Ni 90/10, Cu-Ni 70/30, C70600, C71500
- 6Service Use: Seawater, Marine, Desalination & Offshore Piping
Or call our Mumbai office: +91 22 6743 7134 • Cupro Nickel bar dispatched with heat-wise MTC
Every cast billet starts with certified UNS C70600 or C71500 stock, tracked throughout. Buyers seeking dependable Cupro Nickel Round Bar in India want proven chemistry. We solution-anneal, PMI-test, and certify every finished section before dispatch. Our range includes Cu-Ni 90/10 Bright Bar and Cu-Ni 70/30 Forged Bar. Custom billets are also available according to customer drawing requirements. Mild steel and standard bronze bars corrode quickly under seawater conditions. Ready stock and custom sizes ship within days after order confirmation.
Mumbai · Copper-Nickel Alloy Bar & Rod Exporter
Cupro Nickel Round Bar – Hot Rolled, Bright & Forged Cu-Ni Bar Stock
Ganpat Industrial rolls, draws and forges Cu-Ni Bright Bar, Cupro Nickel Hex Bar and CuNi Alloy Forged Bar ranges for fabricators who cannot risk a pitted shaft or corroded fastener in marine, offshore and desalination duty across India, the GCC and Southeast Asia. As a certified Cupro Nickel Round Bar manufacturer in India, we forge, roll and draw every batch under documented ASTM B151 control.
- ✓ISO 9001:2015
- ✓ASTM B151 & ASME SB151 Certified
- ✓Mill Test Certificate 3.1
- ✓PMI Verified Heats
- ✓Third-Party Inspection Approved
High Corrosion Resistance ASTM B151 Copper Nickel Square Bar Manufacturer in India Across Multiple Finishes
Cupro Nickel Round Bar Specification
Copper Nickel Round Bar Size Range
- Dia: 5mm – 250mm (Round, Rod & Custom Billet)
- Cupro Nickel Hex Bar & Square Bar on request
- Length: 2500mm – 6000mm Random / Cut
- Standard & drawing-based custom sizes
ASME SB151 Copper Nickel Bar Standard
- ASTM B151 / ASME SB151 Rod & Bar
- UNS C70600, C70620, C71500, C71520
- MIL-C-15726 Cross Reference
- Custom QAP & Drawing Compliance
CuNi Alloy Forged Bar Route
- Forged Bar Dia: Up To 250mm On Request
- Solution Annealed & Descaled
- Hot Rolled / Cold Drawn Finish
- Precision Sizing & Straightening
Cu-Ni Bright Bar Finish
- Hot Rolled (Mill Finish)
- Pickled & Descaled
- Bright / Centreless Ground
- Polished Bar On Request
ASTM B151 Cu-Ni Threaded Bar
- UNS C70600 / C71500 Base Stock
- Ni-Cu Solution-Annealed Chemistry
- Threaded, Peeled & Turned Sections
- Custom ASTM B151 Drawing Match
Cupro Nickel Alloy Rod Testing Coverage
- PMI Testing
- Corrosion Test (ASTM G28)
- Ultrasonic & Spectro Test
- Third-Party Inspection
ASME SB151 Copper Nickel Round Bar Grades & Alloy Family
Choose the exact Cu-Ni Bar for your process, every grade is stocked in hex and round barr.
Cu-Ni 90/10
UNS C70600
Widest general seawater resistance, most common bar grade
Cu-Ni 70/30
UNS C71500
Higher nickel, superior strength & high-velocity erosion resistance
Cu-Ni 90/10 Weld Grade
UNS C70620
Nb+Ti grain-refined variant chosen for weld filler stock
Cu-Ni 70/30 Weld Grade
UNS C71520
Low-phosphorus variant used for ERCuNi welding rod stock
ASTM B151 Cupro Nickel Hex Bar HSN Code
| Product | HSN Code | GST Rate |
|---|---|---|
| Cupro Nickel Round Bar (Copper-Nickel Base Alloy Bar & Rod) | 74072220 | 18% |
ASME SB151 Cu Ni Alloy Rounds Price Factors
Get A Live Per-Kg Rate TodayShare your diameter, grade and quantity for quote.
Buy Cu-Ni Bright Bar and Forged Bar in Custom Sizes for Seawater & Biofouling Resistance
Cupro Nickel Alloy Rod Size Chart
Standard diameter coverage across round, hex, square and forged Cu-Ni bar sections.
Round Bar
5mm – 250mm Dia
Hot Rolled, Cold Drawn & Forged
Hex Bar (A/F)
6mm – 100mm A/F
Cupro Nickel Hexagonal Bar
Square Bar
6mm – 100mm A/F
B151 Copper Nickel Square Bar
Forged Bar
Up To 250mm Dia
CuNi Alloy Forged Bar / Billet
Weekly Delivery Of Cupro Nickel Round Bar In Below Countries
| Export To | Continent | Port | Shipping Time |
|---|---|---|---|
Singapore |
Asia | Port Klang | 7-14 Days |
Germany |
Europe | Port of Rotterdam | 12 Days |
Malaysia |
Asia | Port of Singapore | 15-50 Days |
Various Types Of Cupro Nickel Round Bar We Supply
As an active Cupro Nickel Round Bar Supplier in India, we stock every bar profile.
Hot Rolled Cu-Ni Round Bar
ASTM B151
Cupro Nickel Cold Drawn Round Bar
Cold Finished
Copper Nickel Polished Bar
Bright Finish
ASTM B151 Cu-Ni Hex Bar
Hex A/F
Cupro Nickel Rod
Custom Dia
Copper Nickel Alloys Flat Bar
Custom Drawing
ASTM B151 Copper Nickel Square Bar
Square A/F
Copper Nickel Hollow Bar
Bush & Bar Fit
Need A Custom Cu-Ni Bar Diameter Matched?Share your size list & drawing – get a factory-price quote within 24 hours.
Cu-Ni Round Bar Weight Chart
Approximate running weight by diameter – confirm exact figure against your mill test certificate.
| Dia (mm) | Dia (Inch) | Cu-Ni 90/10 (Kg/m) | Cu-Ni 70/30 (Kg/m) |
|---|---|---|---|
| 10 | 3/8″ | 0.699 | 0.702 |
| 16 | 5/8″ | 1.789 | 1.797 |
| 25 | 1″ | 4.369 | 4.389 |
| 32 | 1.1/4″ | 7.158 | 7.190 |
| 40 | 1.1/2″ | 11.184 | 11.234 |
| 50 | 2″ | 17.475 | 17.554 |
| 75 | 3″ | 39.319 | 39.492 |
| 100 | 4″ | 69.900 | 70.211 |
Monthly Delivery Of Cupro Nickel Round Bar In Below Countries
| Export To | Continent | Port | Shipping Time |
|---|---|---|---|
USA |
North America | Port of Los Angeles | 33-47 Days |
Brazil |
South America | Port of Itaqui | 25-39 Days |
UAE |
Asia | Port of Shanghai | 20-25 Days |
Chemical Composition Of Copper Nickel Round Bar (All Grades)
Reference chemistry for the Cu-Ni bar family as per ASTM B151 / ASME SB151.
| Grade | Cu | Ni | Fe | Mn | Pb | Zn | S |
|---|---|---|---|---|---|---|---|
| C70600 (90/10) | Bal. | 9.0-11.0 | 1.00-1.80 | 1.00 Max | 0.05 Max | 1.00 Max | 0.02 Max |
| C71500 (70/30) | Bal. | 29.0-33.0 | 0.40-1.00 | 1.00 Max | 0.05 Max | 1.00 Max | 0.02 Max |
| C70620 (Weld Grade) | Bal. | 9.0-11.0 | 1.00-1.80 | 1.00 Max | 0.02 Max | – | 0.02 Max |
| C71520 (Weld Grade) | Bal. | 29.0-33.0 | 0.40-1.00 | 1.00 Max | 0.02 Max | – | 0.02 Max |
Mechanical Properties Of ASTM B151 Cu-Ni Bar
Tensile Strength
275-380 MPa Min
40-55 ksi Min, Annealed
Yield Strength (0.2%)
105-170 MPa Min
15-25 ksi Min, Annealed
Elongation
≥ 30%
High Ductility
Hardness (Max)
≤ 80 HRB
Hot Finished / Annealed
Need A Certified Tensile & Hardness Report?Send size, quantity & standard for a free document review.
Physical & Thermal Properties Of Cupro Nickel Alloy Rod
Density
8.90 g/cm³ for Cu-Ni 90/10 and 8.94 g/cm³ for Cu-Ni 70/30 bar stock
Melting Range
1100-1145°C for 90/10 and 1170-1240°C for 70/30 alloy chemistry
Conductivity
Thermal ~40 W/m·K (90/10), ~29 W/m·K (70/30); electrical 9% & 4.6% IACS
Copper Nickel Round Bar Equivalent Grades
ASTM / UNS
- ASTM B151 / ASME SB151 Rod & Bar
- UNS C70600 (90/10), C71500 (70/30)
- UNS C70620 / C71520 Weld Grade
- AWS A5.7 ERCuNi Filler Reference
DIN / WNr
- WNr 2.0872 (CuNi10Fe1Mn – 90/10)
- WNr 2.0882 (CuNi30Fe – 70/30)
- DIN 17664 / DIN 17665 Reference
- CuNi10Fe1Mn / CuNi30Mn1Fe Chemistry
BS / Trade Name
- BS 2871 CN102 (90/10) / CN107 (70/30)
- Often Searched As Cupro Nickel 90-10 / 70-30 Bar
- Cupro Nickel® Trade Name Reference
Testing Methods For Cu-Ni Alloy Round Bar
Every genuine Cu-Ni bar mill should show you these checks on paper before shipment.
PMI Testing
Positive Material Identification confirms Cu & Ni ratio on every heat
Pitting Corrosion Test
ASTM G28 exposure verifies pitting & intergranular resistance
Ultrasonic Test (UT)
Bar body checked for internal porosity, inclusion or lamination
Tensile & Hardness Test
Every heat lot verified against ASTM B151 mechanical limits
Spectro Chemical Analysis
Optical emission spectrometer confirms exact grade chemistry
Dimensional Inspection
Diameter, ovality & length checked against drawing on every lot
Need A Custom Cu-Ni Bar Diameter Verified?Share your drawing & quantity list – get a factory-price quote within 24 hours.
Test Certification Offered With Cupro Nickel Round Bar
Mill Test Certificate 3.1
Chemistry, hardness & tensile results traced to heat number
Every Order
PMI Test Report
Positive Material Identification confirming Cu & Ni content
On Request
Corrosion Test Report
ASTM G28 pitting & intergranular results on request
On Request
Spectro Analysis Report
Full elemental breakdown against ASTM B151 chemistry limits
Every Heat
Certificate Of Origin
For customs clearance & import duty processing
Export Orders
Need A Third-Party Witnessed Test Certificate?We coordinate SGS, Bureau Veritas or TUV inspection on request.
Surface Finish Options For Copper Nickel Round Bar
Hot Rolled Finish
Hot-worked mill finish for larger diameter structural bar
Cold Drawn / Bright
Tight-tolerance bright finish straight after cold drawing
Centreless Ground / Polished
Mirror-smooth surface for shafts, fasteners & sanitary parts
Black / Pickled Finish
Acid pickling removes heat scale and restores the oxide film
Peeled & Turned
Uniform diameter & clean surface for machined components
Manufacturing Process Of ASTM B151 Cu-Ni Bar
Melting & Casting
Continuous cast billet from certified Cu-Ni scrap & virgin metal
Hot Extrusion / Rolling
Billet reduced to bar section under controlled hot-work temperature
Cold Drawing To Size
Precision draw sets tight diameter tolerance & bright surface
Solution Annealing
Restores ductility and full corrosion resistance before dispatch
Cutting & Finishing
Straightening, threading & chamfering to drawing dimensions
Need A Signed Corrosion Data Statement?Send project name & PO reference – we prepare it against your order.
CuNi Alloy Bar Welding Consumables & Process
GTAW / TIG With ERCuNi Filler
AWS A5.7 ERCuNi wire matched to Cu-Ni 90/10 or 70/30 bar
Standard
SMAW With ECuNi Electrode
AWS A5.6 covered electrode for shop & site repair welds
Site Repair
Controlled Preheat & Interpass
Low interpass temperature prevents hot-cracking in Cu-Ni welds
Every Weld
Post-Weld Stress Relief
Restores full corrosion resistance across the heat-affected zone
Recommended
Filler Selection By Grade
ERCuNi matched exactly to the parent Cu-Ni 90/10 or 70/30 bar
Grade Matched
Cu-Ni 90/10 Vs Cu-Ni 70/30 Round Bar – Which To Choose?
Cu-Ni 90/10 Round Bar
- Solid-solution Cu-Ni base, easy to machine
- Good general seawater corrosion resistance
- Lower cost, wider ready-stock availability
- Best for piping, fasteners & general marine parts
Cu-Ni 70/30 Round Bar
- Higher nickel content, superior erosion resistance
- Handles higher flow-velocity seawater duty
- Higher strength than the 90/10 grade
- Best for high-velocity lines & offshore shafting
Not Sure Which Cu-Ni Grade Fits Your Line?Share your process fluid & flow velocity – we confirm the right bar grade.
How To Choose A Genuine ASTM B151 Cupro Nickel Round Bar?
Ask For Heat-Wise MTC 3.1
Certificate must show chemistry, tensile & heat number matching the bar marking
Step 1
Request PMI Spot Verification
Cu & Ni reading on the bar body must match the MTC values
Step 2
Check End-Stamp Markings
Grade, standard, heat number & manufacturer logo should be die-stamped
Step 3
Verify Third-Party Inspection
SGS, BV or TUV report confirms independent test results
Step 4
Application Of Cupro Nickel Round Bar & Rod
As a trusted Cupro Nickel Round Bar Supplier in India, we serves demanding marine applications.
Seawater & Desalination Piping
Shipbuilding & Offshore Platforms
Heat Exchanger & Condenser Parts
Valve, Pump & Fastener Stock
Marine Hardware & Fittings
Oil & Gas Subsea Equipment
Power Plant Cooling Systems
Aquaculture Fish Cage Frames
Not Sure Which Cu-Ni Bar Fits Your Project?Share your process fluid & temperature – we confirm the right bar grade.
Packing & Export Documentation For Cupro Nickel Round Bar
Wooden Crate / Bundle Packing
End Caps To Prevent Thread Damage
Packing List, Invoice & COO
FCL / LCL Sea & Air Freight
Frequently Asked Questions
What is the Cupro Nickel Round Bar price per kg?
Price depends on grade, diameter, finish and quantity – share specs for an exact rate.
What Cupro Nickel Rod sizes do you stock?
Available from 5mm to 250mm diameter, round, hex, square and forged sections.
What are the key properties of Cu-Ni 70/30 bar?
High seawater corrosion resistance, good weldability, moderate strength and strong biofouling resistance.
Is CuNi Alloy Bright Bar magnetic in nature?
No, both Cu-Ni 90/10 and 70/30 bar remain non-magnetic across normal service conditions.
Which standard governs ASME SB151 Copper Nickel Bar?
ASTM B151 and its ASME SB151 equivalent govern chemistry, temper and dimensional requirements.
Material Inspection Facilities in the Following Continents
| Continents | Country |
|---|---|
| Africa | Nigeria, Egypt, South Africa, Kenya, Ghana, Ethiopia |
| North America | United States, Canada, Mexico, Cuba |
| South America | Brazil, Argentina, Colombia, Chile, Peru |
| Asia | India, Japan, South Korea, Indonesia, Saudi Arabia, Iran |
| Europe | Germany, France, UK, Italy, Spain, Poland, Ukraine |
| Australia | New Zealand, Papua New Guinea, Fiji, Samoa |
6 Reasons to choose Ganpat Industrial Corporation
- Distributor of Heat Exchanger parts and Alloys for High Temperature applications.
- Stockholder and importer of Ferrous and non ferrous metals.
- Wide stock of prime quality austenitic and Ferritic Stainless Steel for Extreme pressure environment.
- Marine grade steel at lowest price in Mumbai.
- Compare Price per KG in India and China.
- Offer Resale price to local suppliers, traders and wholesalers in UAE, Saudi Arabia, Egypt, and USA