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Copper Nickel 70 /10 & 90/10 Round Bar

Copper Nickel 70 /10 & 90/10 Round Bar

Copper Nickel 70/30 & 90/10 Round Bars Manufacturer, Supplier & Exporter in India

Copper Nickel 70/30 and 90/10 Round Bars supplied by Astromet Steel & Engineering are premium copper-nickel alloys widely used for marine and seawater applications. These alloys offer excellent corrosion resistance, especially in chloride-rich and seawater environments. Their inherent resistance to biofouling and erosion corrosion ensures long service life. Both grades are engineered for reliable performance in harsh operating conditions.

Copper Nickel 70/30 Round Bars provide higher strength and superior resistance to high-velocity seawater compared to 90/10. Copper Nickel 90/10 Round Bars, on the other hand, offer excellent thermal conductivity and cost efficiency. Both alloys demonstrate excellent resistance to stress corrosion cracking. This makes them suitable for continuous exposure to marine atmospheres.

Astromet Steel & Engineering manufactures Copper Nickel Round Bars under strict quality and metallurgical controls. The bars are available in hot rolled, cold drawn, and annealed conditions. Dimensional accuracy and surface finish comply with international standards. Custom sizes and cut lengths are supplied as per client requirements.

These copper-nickel alloys exhibit excellent weldability and formability. They maintain stable mechanical properties across a wide temperature range. Copper Nickel Round Bars require minimal maintenance. This results in lower lifecycle costs and high operational reliability.

Copper Nickel Round Bar Specifications

Material Copper Nickel
Size range 12 mm – 46 mm (1/2 inch- 1 ¾ inch)
Chamfering Available in 30°, 45° & 60° through fully automatic, both-end chamfering machine
Available Forms Threaded, Profiles, Rod, Blocks, Round, Channel, Round Rod, Half Round, Triangle, Hollow, Precision Ground, Rectangle, T-Bar, Rings, Ingot, Billet, Forging etc.
Surface Finish Cold (bright) drawn, smooth turned, hot rolled, centreless ground, peeled, Rough Turned, hot rolled annealed, Bright, slit rolled edge, Polish, Grinding, Centreless Ground & Black
Length 2 meters to 7.5 meters ( 8 feet to 24 feet), or Custom Length as per Requirement
Size Tolerances h10 and h11
Tolerance H8, H10, H9, H11, H13K9, H12, K10, K12 K11 or as per clients’ requirements
Crack Test Magnetic Particle Inspection (MPI)
Heat Treatment Annealed, Solution Annealed

Phone

Office 1: +91 22 6636 2450
Office 2: +91 22 6743 8251

Email

info@astrometsteel.com
krish@astrometsteel.com

Address

# 143-145, Earth Castle Mall, #101-104, 1st Floor V. P. Road, Girgaum Mumbai - 400 004

Copper Nickel Round Bar Equivalent Grades

STANDARD WERKSTOFF NR. UNS
Cupro Nickel 90/10 2.0872 C70600
Cupro Nickel 70/30 2.0882 C71500

Copper Nickel Round Bar Chemical Composition

Grade Fe Cu Pb Ni Mn Zn
Cu-Ni 70-30 0.4-1.0 65.0 min .05 max 29-33 1 max 1 max
Cu-Ni 90-10 1.8 max 88.6 min .05 max 9-11 max 1.0 max 1 max

Copper Nickel Alloy Round Bar Mechanical Properties

Typical Values Units CuNi 70/30 CuNi 90/10
Proof Stress (YS 0,2), (Rp 0,2) MPa > 130 > 110
ksi > 19 > 16
Tensile Strength (UTS),(Rm) MPa > 350 > 310
ksi > 51 > 44
Hardness (HB10 D2 ) > 80 > 70
Elongation (E 5,65 VS) % > 30 > 35

Why Choose Astromet Steel & Engineering?

This advanced resistance to intergranular corrosion because of the

  • Consistent quality & competitive pricing
  • Ready stock & custom fabrication
  • International standard compliance
  • On-time delivery worldwide
  • Complete documentation & certification

Copper Nickel 70/30 & 90/10 Round Bars Usage & Applications

Copper Nickel 70/30 & 90/10 Round Bars are extensively used in shipbuilding, marine engineering, seawater piping systems, heat exchangers, condensers, desalination plants, offshore platforms, and coastal power plants. They are also applied in hydraulic systems, marine fasteners, and seawater handling equipment where corrosion resistance is critical.