Name: ASTM B564 UNS N04400 MONEL 400 Flange Used in Marine Industry
Brand: Yuhong Group Co.,Ltd
SKU: UNS N04400,MONEL 400
Price: 150000.00 USD
Availability: InStock

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ASTM B564 UNS N04400 MONEL 400 Flange Used in Marine Industry

Product Details:

Place of Origin:	China
Brand Name:	YUHONG
Certification:	ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2015
Model Number:	UNS N04400,MONEL 400

Payment & Shipping Terms:

Minimum Order Quantity:	3 Pieces
Price:	Negotiable
Packaging Details:	Ply-wooden Case / Pallet
Delivery Time:	5 - 60 work days
Payment Terms:	T/T, L/C
Supply Ability:	According To Customers' Request

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Detailed Product Description

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
Highlight:	ASTM B564 Monel 400 flange , Monel 400 marine flange , UNS N04400 steel flange

ASTM B564 UNS N04400 MONEL 400 Flange Used in Marine Industry

ASTM B564 specifies forged products made of nickel and nickel alloys.

It covers dozens of common, commercially available nickel alloys, such as UNS N04400, UNS N06625, and UNS N08825. UNS N04400 flanges made from these alloys exhibit excellent corrosion resistance due to the properties of nickel-based materials and are widely used in seawater environments.

In actual production, the manufacturing process, chemical composition, and mechanical properties are subject to strict requirements and must be implemented in accordance with ASTM B564 standards.

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).