Yuhong Group Co.,Ltd
| Pressure | 10bar, 14bar |
| Packaging Details | PLY-WOODEN CASE |
| Standard | DIN 86033 |
| Material | C70600, CuNi10Fe1.6Mn, CuNi 90/10 |
| Product Name | Copper Nickel Forded Flange |
| Delivery Time | 7days |
| Payment Terms | L/C, T/T |
| High Light | DIN 86033 Copper Nickel Slip On Flange, C70600 SO Flanges |
| Face Type | Slip on, SO |
| Size | DN15 to DN500 , 1/2″ – 24″ |
| Application | Shipbuilding, Offshore platform, Power Plant, etc |
| Certification | API, PED, ASME , TUV , ABS, LR , BV, DNV , GL , KR |
| Brand Name | YUHONG |
| Place of Origin | CHINA |
| Model Number | DIN 86033 C70600 Copper Nickel Slip On Flange |
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Product Specification
| Pressure | 10bar, 14bar | Packaging Details | PLY-WOODEN CASE |
| Standard | DIN 86033 | Material | C70600, CuNi10Fe1.6Mn, CuNi 90/10 |
| Product Name | Copper Nickel Forded Flange | Delivery Time | 7days |
| Payment Terms | L/C, T/T | High Light | DIN 86033 Copper Nickel Slip On Flange, C70600 SO Flanges |
| Face Type | Slip on, SO | Size | DN15 to DN500 , 1/2″ – 24″ |
| Application | Shipbuilding, Offshore platform, Power Plant, etc | Certification | API, PED, ASME , TUV , ABS, LR , BV, DNV , GL , KR |
| Brand Name | YUHONG | Place of Origin | CHINA |
| Model Number | DIN 86033 C70600 Copper Nickel Slip On Flange | ||
| High Light | 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 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).
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Importer,Exporter,Trading Company,Seller,Other
Year Established:
2007
Total Annual:
50M-70M
Employee Number:
50~850
Ecer Certification：
Verified Supplier
Yuhong Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou... Yuhong Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou...
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