Name: DIN 86033 Copper Nickel Slip On Flange CuNi10Fe1.6Mn / C70600 Alloy Flange for Shipbuilding
Brand: Yuhong Group Co.,Ltd
SKU: DIN 86033 C70600 Copper Nickel Slip On Flange
Price: 150000 USD
Availability: InStock

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DIN 86033 Copper Nickel Slip On Flange CuNi10Fe1.6Mn / C70600 Alloy Flange for Shipbuilding

Product Details:

Place of Origin:	CHINA
Brand Name:	YUHONG
Certification:	API, PED, ASME , TUV , ABS, LR , BV, DNV , GL , KR
Model Number:	DIN 86033 C70600 Copper Nickel Slip On Flange

Payment & Shipping Terms:

Minimum Order Quantity:	1pc
Packaging Details:	PLY-WOODEN CASE
Delivery Time:	7days
Payment Terms:	L/C, T/T

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Detailed Product Description

Product Name:	Copper Nickel Forded Flange	Standard:	DIN 86033
Material:	C70600, CuNi10Fe1.6Mn, CuNi 90/10	Size:	DN15 To DN500 , 1/2″ – 24″
Pressure:	10bar, 14bar	Face Type:	Slip On, SO
Application:	Shipbuilding, Offshore Platform, Power Plant, Etc
Highlight:	DIN 86033 copper nickel flange , CuNi10Fe1.6Mn alloy shipbuilding flange , C70600 slip on steel flange

DIN 86033 Slip On Flange , CuNi10Fe1.6Mn / C70600 / CuNi 90/10 Copper Nickel Alloy Flanges

DIN 86033 is standard of slip on flange, specifically designed for copper-nickel alloys. It is not the same as DIN EN 1092-1 (for steel). The bolt circle, hub dimensions, and facing are optimized for CuNi alloys to prevent stress corrosion cracking and ensure proper gasket sealing at lower strength levels. Slip-On Type (Type 02): The flange slips over the pipe end and is fillet welded both inside and outside (on the bore and on the back face). A slip‑on pipe flange manufactured according to DIN 86033 from CuNi10Fe1.6Mn (C70600), used for joining copper‑nickel seawater piping systems in shipbuilding, offshore, and desalination plants.

DIN 86033 Slip On Flanges Specification

Product Name	DIN 86033 Copper Nickel Slip On Flanges
Size range	DN15 to DN500 , 1/2″ – 24″
Standard	DIN 86033
Equivalent Material	CuNi10Fe1.6Mn WL 2.1972
	ASTM B151 UNS C70600
	ASTM B151 UNS C71500
	EEMUA 144 UNS C7060X
Pressure	10bar, 14bar

Chemical Composition% of UNS C70600 Copper Nickel Alloy

Element	DIN 86019 2.1972	EEMUA 144 UNS 7060X	BS 2871 CN 102	ASTM B466 C70600	JIS H 3300 C7060	MIL-T-16420K C70600
Ni%	9.0-11.0	10.0-11.0	10.0-11.0	9.0-11.0	9.0-11.0	9.0-11.0
Fe%	1.5-1.8	1.5-2.0	1.0-2.0	1.0-1.8	1.0-1.8	1.0-1.8
Mn%	0.5-1.0	0.5-1.0	0.5-1.0	Max.1.0	0.2-1.0	Max1.0
C%	Max.0.05	Max.0.05	Max.0.05	Max.0.05		Max.0.05
Pb%	Max.0.03	Max.0.01	Max.0.01	Max.0.02	Max.0.05	Max.0.02
S%	Max.0.015	Max.0.02	Max.0.05	Max.0.02		Max.0.02
P%	Max.0.02	Max.0.02		Max.0.02		Max.0.02
Zn%	Max.0.15	Max.0.20		Max.0.50	Max.0.50	Max.0.05
Zr%	Max.0.03
Others	Max.0.30	Max.0.30	Max.0.30
Cu%	Balance	Balance	Balance	Balance	Cu+Ni +Fe+Mn Min.99.5	Min.86.5

Equivalent Grade Designation

CuNi 90/10

UNS C70600

EN DIN 2.0872

CuNi10Fe1.6Mn

BS CN102

JIS C7060T/CNP1

EEMUA UNS 7060X

Flange Facing and Gasket

Facing: DIN 86033 flanges typically have a Type B or E raised face (similar to EN 1092-1). Standard RF height is ~2 mm.
Gasket Material: Use soft gaskets compatible with seawater and CuNi (e.g., EPDM, PTFE, Neoprene, or Non-asbestos fiber).
Avoid: Graphite or rubber with high sulfur content (can corrode CuNi).

Repair & Re‑use of CuNi Flanges

Can a used CuNi flange be reused? Yes, under strict conditions.

Inspection before re‑use:

No cracks (dye penetrant).
Flatness of face ≤0.2 mm across the diameter.
Bolt holes not elongated (roundness within 0.5 mm).
No pitting deeper than 0.5 mm on gasket sealing area.

If minor pitting: Machine the face lightly (remove max 0.5 mm thickness). Re‑face to original surface roughness (Ra 3.2–6.3 µm). Note: Reducing flange thickness lowers pressure rating – recalculate for PN rating.

If corrosion near bore: Weld build‑up with ERCuNi, then machine back to dimensions. This is expensive but possible for large, rare flanges.

Do NOT re‑use: Flanges that have been overheated (>300°C) – grain growth reduces strength.

Application

Naval & Commercial Marine: Seawater cooling lines, ballast systems, firefighting mains.
Offshore Platforms: Hydraulic lines, seawater lift pumps.
Desalination Plants: Low-pressure brine and seawater piping.
Power Plants: Once-through seawater cooling (e.g., coastal nuclear or fossil plants).