Yuhong Group Co.,Ltd
| Payment Terms | T/T, L/C |
| Supply Ability | According To Customers' Request |
| Delivery Time | 5 - 60 work days |
| Packaging Details | Ply-wooden Case / Pallet |
| Standard | ASTM B564 / ASME SB564 |
| Material Grade | UNS N04400, MONEL 400 |
| Size | 1/2"-48" |
| Pressure | Class150-2500/ PN6-PN100 |
| Technics | Froged |
| Application | Petroleum,chemical,fittings and connection |
| Brand Name | YUHONG |
| Model Number | UNS N04400,MONEL 400 |
| Certification | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2015 |
| Place of Origin | China |
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Product Specification
| Payment Terms | T/T, L/C | Supply Ability | According To Customers' Request |
| Delivery Time | 5 - 60 work days | Packaging Details | Ply-wooden Case / Pallet |
| Standard | ASTM B564 / ASME SB564 | Material Grade | UNS N04400, MONEL 400 |
| Size | 1/2"-48" | Pressure | Class150-2500/ PN6-PN100 |
| Technics | Froged | Application | Petroleum,chemical,fittings and connection |
| Brand Name | YUHONG | Model Number | UNS N04400,MONEL 400 |
| Certification | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2015 | Place of Origin | China |
| High Light | ASTM B564 Monel 400 flange ，Monel 400 marine flange ，UNS N04400 steel flange | ||
ASTM B564 UNS N04400 MONEL 400 Flange Used in Marine Industry
| Element | Specification Requirements (Weight % Maximum, Unless Noted) |
| Nickel (Ni) | 63.0 min |
| Copper (Cu) | 28.0 - 34.0 |
| Iron (Fe) | 2.5 max |
| Manganese (Mn) | 2.0 max |
| Carbon (C) | 0.3 max |
| Silicon (Si) | 0.5 max |
| Sulfur (S) | 0.024 max |
| Aluminum (Al) | 0.5 max* |
| Titanium (Ti) | 0.3 max* |
| Cobalt (Co) | 0.5 max* |
| Residuals | 0.5 max* |
| Property | Specification Requirement | Typical Value (Annealed) |
| Tensile Strength, min | 550 MPa (80 ksi) | 550 - 690 MPa (80 - 100 ksi) |
| Yield Strength (0.2% Offset), min | 240 MPa (35 ksi) | 240 - 410 MPa (35 - 60 ksi) |
| Elongation in 50 mm (2 in), min | 35% | 35 - 50 % |
| Hardness | Reported | ~150 HBW (~80 HRB) |
Why Choose ASTM B564 UNS N04400 for Flanges?
| The decision to specify this material over more common options like 316L stainless steel or duplex steels is based on the following comparative advantages: | |
| Consideration | Advantage of N04400 Flanges |
| Seawater Corrosion | Far superior to stainless steels. Highly resistant to pitting, crevice corrosion, and biofouling in stagnant or fast-flowing seawater. |
| Acid Resistance | Excellent in reducing acids (HCl, HF, H₂SO₄ under non-aerated conditions) where stainless steels fail rapidly. |
| Chloride Stress Corrosion Cracking (SCC) | Immune. This is a critical failure mode for 300-series stainless steels in chloride-containing environments above ~60°C. |
| Strength & Toughness | Maintains good mechanical properties from sub-zero temperatures up to about 480°C (900°F). |
| Fabricability | The annealed forgings are ductile and can be readily machined into complex flange geometries (though they work-harden, requiring proper tooling and technique). |
ASTM B564 UNS N04400 Flange Material Applications
Seawater Systems
Offshore Platforms & FPSOs
Desalination Plants
Subsea Equipment
Oil, Gas, & Petrochemical Processing
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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