Copper Nickel Flat Bars

Chuck Metals stands out as a top-notch manufacturer and supplier of high-quality Copper Nickel Flat Bars right here in Singapore, Pulau Ujong. They cater to a variety of industries, including marine, offshore, desalination, and chemical processing. Renowned for their precision manufacturing and corrosion-resistant alloys, Chuck Metals provides Copper Nickel flat bars in popular grades like 90/10 (C70600) and 70/30 (C71500), which excel in saltwater and other harsh environments. With full material traceability, competitive pricing, and quick delivery, Chuck Metals has earned the trust of engineers and procurement teams looking for reliable, high-performance copper nickel flat products that meet critical industrial needs.

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70/30 Copper Nickel Flat Bar

Copper Nickel Flat Bar

90/10 Copper Nickel Flat Bar

What is Copper Nickel Flat Bars?

Typically, Copper Nickel Flat Bars are made up of 90% copper and 10% nickel (90/10) or 70% copper and 30% nickel (70/30), with small amounts of iron and manganese added to enhance corrosion and erosion resistance. These alloys boast impressive tensile strength (between 300–500 MPa), excellent ductility, and strong resistance to pitting, stress corrosion, and biofouling. The flat bar shape allows for great machinability, making them easy to cut, weld, and fabricate. Thanks to Copper Nickel’s stable mechanical and thermal properties, they’re perfect for systems that deal with seawater, brine, and varying temperature or pressure conditions.

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Copper Nickel Flat Bars Specifications

tandards: EN, DIN, JIS, ASTM, BS, ASME, AISI

Size: 5 mm to 200 mm

Length : 100 mm to 3660 mm Long

Specifications : ASTM / ASME SB 111

Form : Round, Square, Hex (A/F), Rectangle, Wire (Coil Form), Wire-mesh, Billet, Ingot, Forging Etc.

Finish : Bright, Polish & Black

Chemical Composition of Copper Nickel Flat Bars Rods

Grade	Mn	Cu	Pb	Fe	Ni	Zn
90/10	1.0 max	88.6 min	0.5 max	1.8 max	9-11 max	1 max
70/30	1 max	65.0 min	0.5 max	0.4-1.0	29-33	1 max

Mechanical Properties of Copper Nickel Flat Bars

Grade	Melting point	Density	Tensilestrength	Elongation	Yieldstrength(0.2%Offset)
90/10	2260°F	8.8g/cm3	50000 PSi	30%	20000 PSi
70/30	2260°F	0.323 lb/in3 at 68°F	50000 PSi	30%	20000 PSi

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Why Chuck Metals?

Packaging

Cupronickel Flat Bar Stock Surface Finishes

BD	Bright drawn	SRE	Slit rolled edge
CF	Cold finished	HRAP	Hot rolled annealed / pickled
CG	Centreless ground	HF	Hot finished
ST	Smooth turned	PR	Peeled / reeled
CD	Cold drawn	P	Polished
P&T	Peeled / turned	RT	Rough turned and peeled

Size chart of Copper Nickel Flat Bar

Flat bar – metric sizes ( weights )
Flat size	Standard length (metres)	KG’s / metre	Colour code
16 x 3	6.0	0.38	Blue
13 x 3	6.0	0.31	Blue
13 x 5	6.0	0.46	Orange
16 x 5	6.0	0.64	Orange
20 x 3	6.0	0.48	Blue
16 x 8	6.0	1.03	Red
20 x 5	6.0	0.81	Orange
20 x 10	6.0	1.61	Yellow
20 x 6	6.0	0.97	White
25 x 3	6.0	0.60	Blue
25 x 6	6.0	1.21	White
10 x 3	6.0	0.24	Blue
25 x 5	6.0	1.01	Orange
25 x 8	6.0	1.61	Red
25 x 12	6.0	2.41	Pink
25 x 10	6.0	2.01	Yellow
32 x 3	6.0	0.77	Blue
32 x 6	6.0	1.55	White
32 x 5	6.0	1.29	Orange
32 x 8	6.0	2.06	Red
32 x 12	6.0	3.09	Pink
32 x 10	6.0	2.58	Yellow
40 x 3	6.0	0.97	Blue
40 x 6	6.0	1.93	White
40 x 5	6.0	1.61	Orange
40 x 8	6.0	2.58	Red
40 x 12	6.0	3.86	Pink
40 x 10	6.0	3.22	Yellow
40 x 16	6.0	5.15	Grey
50 x 3	6.0	1.21	Blue
40 x 20	6.0	6.14	Green
50 x 5	6.0	2.01	Orange
50 x 8	6.0	3.22	Red
50 x 6	6.0	2.41	White
50 x 10	6.0	4.02	Yellow
50 x 16	6.0	6.44	Grey
50 x 12	6.0	4.83	Pink
50 x 20	6.0	8.05	Green
65 x 3	6.0	1.57	Blue
50 x 25	6.0	10.1	Purple
65 x 5	6.0	2.62	Orange
65 x 8	6.0	4.18	Red
65 x 6	6.0	3.14	White
65 x 10	6.0	5.23	Yellow
65 x 16	6.0	8.37	Grey
65 x 12	6.0	6.28	Pink
65 x 20	6.0	10.5	Green
75 x 5	6.0	3.02	Orange
65 x 25	6.0	13.1	Purple
75 x 6	6.0	3.62	White
75 x 10	6.0	6.04	Yellow
75 x 8	6.0	4.83	Red
75 x 12	6.0	7.24	Pink
75 x 20	6.0	12.1	Green
75 x 16	6.0	9.66	Grey
75 x 25	6.0	15.1	Purple
90 x 5	6.0	3.62	Orange
75 x 40	6.0	24.1	Yellow
90 x 6	6.0	4.35	White
90 x 10	6.0	7.24	Yellow
90 x 8	6.0	5.79	Red
90 x 12	6.0	8.69	Pink
100 x 6	6.0	4.83	White
100 x 5	6.0	4.02	Orange
100 x 8	6.0	6.44	Red
100 x 12	6.0	9.66	Pink
100 x 10	6.0	8.05	Yellow
100 x 16	6.0	12.9	Grey
100 x 25	6.0	20.1	Purple
100 x 20	6.0	16.1	Green
100 x 50	6.0	40.2	Green
110 x 8	6.0	7.08	Red
110 x 6	6.0	5.31	White
110 x 10	6.0	8.85	Yellow
130 x 5	6.0	5.23	Orange
110 x 12	6.0	10.6	Pink
130 x 6	6.0	6.28	White
130 x 10	6.0	10.5	Yellow
130 x 8	6.0	8.37	Red
130 x 12	6.0	12.6	Pink
130 x 20	6.0	20.9	Green
130 x 16	6.0	16.7	Grey
130 x 25	6.0	26.2	Purple
150 x 6	6.0	7.24	White
150 x 5	6.0	6.04	Orange
150 x 8	6.0	9.66	Red
150 x 12	6.0	14.5	Pink
150 x 10	6.0	12.1	Yellow
150 x 16	6.0	19.3	Grey
150 x 25	6.0	30.1	Purple
150 x 20	6.0	24.1	Green
150 x 50	6.0	60.4	Green
180 x 6	6.0	8.69	White
180 x 5	6.0	7.24	Orange
180 x 10	6.0	14.5	Yellow
180 x 16	6.0	23.2	Grey
180 x 12	6.0	17.4	Pink
180 x 20	6.0	29.0	Green
200 x 6	6.0	9.66	White
180 x 25	6.0	36.2	Purple
200 x 8	6.0	12.9	Red
200 x 12	6.0	19.3	Pink
200 x 10	6.0	16.1	Yellow
200 x 16	6.0	25.7	Grey
200 x 25	6.0	40.3	Purple
200 x 20	6.0	32.2	Green
250 x 6	6.0	12.1	White
250 x 10	6.0	20.1	Yellow
250 x 8	6.0	16.1	Red

Equivalent grade of cupro nickel Flat bar

Grade	UNS	Werkstoff Nr.
90/10	C70600	2.0872
70/30	C71500	2.0882

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Copper Nickel Flat Bars Types

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Copper Nickel Flat Bars Uses

Copper Nickel Flat Bars are extensively utilized in the marine and shipbuilding sectors for structural components, seawater piping, condenser plates, and cladding, all thanks to their exceptional resistance to saltwater corrosion and marine biofouling. In power plants and desalination facilities, you’ll find them in brine heaters, heat exchanger parts, and water handling systems. These bars are also ideal for offshore platforms, pumps, valves, and fittings in the chemical processing industry. Their workability, long lifespan, and anti-microbial properties make Copper Nickel flat bars a go-to choice for challenging and corrosive applications.

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