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ASTM A182 F51 Duplex Steel Welding Neck Flange

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Transportation: Ocean,Land,Air

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Material	Stainless Steel
Types	Weld Neck Flange
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Product Attributes Supply Ability & Additional Information

Product Attributes

Model No.: ASTM A182 F51

Brand: YUHONG

Place Of Origin: China

Specifications: ASTM A182, ASME SA182

Standards: B16.5

Type: Weld Neck

Connect: Raised Face (RF)

Material: S31803

Product Description

ASTM A182 F51 Duplex Stainless Steel Welding Neck Flange

ASTM A182 F51 is a duplex stainless steel grade that offers excellent corrosion resistance and high strength. It is commonly used in industries such as oil and gas, chemical processing, and marine applications.

A welding neck flange is a type of flange that has a long tapered hub and a neck that is welded to the pipe. It is designed to transfer stress from the flange to the pipe, reducing the risk of leakage. Welding neck flanges are commonly used in high-pressure and high-temperature applications.

When welding ASTM A182 F51 duplex stainless steel welding neck flanges, it is important to follow proper welding procedures to ensure the integrity and performance of the joint. Some considerations for welding this material include:

1. Preheating: Preheating the material before welding can help reduce the risk of cracking. The specific preheating temperature will depend on the thickness of the material and the welding process being used.

2. Welding process: Common welding processes used for welding duplex stainless steel include TIG (Tungsten Inert Gas) welding and SMAW (Shielded Metal Arc Welding). These processes provide good control over the heat input and help maintain the corrosion resistance of the material.

3. Filler material: Matching filler material should be used to ensure compatibility with the base metal. Common filler materials for welding ASTM A182 F51 include ER2209 and ER2594.

4. Post-weld heat treatment: Depending on the application and the welding procedure used, a post-weld heat treatment may be required to relieve residual stresses and improve the mechanical properties of the weld.

5. Welding parameters: Proper control of welding parameters such as heat input, travel speed, and interpass temperature is crucial to achieving a sound weld. These parameters should be optimized based on the specific welding process and joint configuration.

It is important to consult the welding procedure specification (WPS) provided by the manufacturer or a qualified welding engineer for specific guidelines on welding ASTM A182 F51 duplex stainless steel welding neck flanges. Following the recommended procedures and using qualified personnel can help ensure the quality and performance of the welded joints.

Dimensions Chart of UNS S31803 Duplex Steel Blind Flange

Outside Diameter	Inside Diameter
≤ 24 = 1.6 mm \| > 24 = ± 3.2 mm	not applicable
Diameter of Contact Face	Outside Diameter of Hub
1.6 mm Raised Face = ± 0.8 mm	≤ 12 = + 2.4 mm / – 1.6 mm \| ≥ 14 = ± 3.2 mm
6.35 mm Raised Face, Tongue & Groove / Male-Female = ± 0.4 mm
Diameter of Counterbore	Drilling
not applicable	Bolt Circle = 1.6 mm \| Bolt Hole Spacing = ± 0.8 mm
	Eccentricity of Bolt Circle with Respect to Facing
	≤ 2½ = 0.8 mm max. \| ≥ 3 = 1.6 mm max.
Thickness	Length thru Hub
≤ 18 = + 3.2 mm / – 0 \| ≥ 20 = + 4.8 mm / – 0	≤ 18 = + 3.2 mm / – 0.8 mm \| ≥ 20 = + 4.8 mm / – 1.6 mm

Duplex F51 Flanges Chemical Structure

C	Mn	Si	P	S	Cr	Mo	Ni	N	Fe
0.030 max	2.00 max	1.00 max	0.030 max	0.020 max	22.0 – 23.0	3.0 – 3.5	4.50 – 6.50	0.14 – 0.20	63.72 min

Duplex Stainless Steel Weld Neck Flange Mechanical Table

Density (g/cm 3)	Density (lb/in 3)	Melting Point (°C)	Melting Point (°F)
7.805	0.285	1420 – 1465	2588 – 2669

Application

Oil and Gas Industries
Food Processing Industries
Equipments
Pipeline
Power Industries
Ship Building Industries
Paper Industries
Cement Industries
Chemical Industries

A182 F51 WNRF FLANGE (9)

A182 F51 WNRF FLANGE (5)

Packaging & Delivery

Selling Units	:	Kilogram
Package Type	:	Ply-wooden Case /Iron Case/ Bundle with plastic Cap
Picture Example	:

Supply Ability & Additional Information

Packaging: Ply-wooden Case /Iron Case/ Bundle with plastic Cap

Productivity: 1000 Tons Per Month

Transportation: Ocean,Land,Air

Place of Origin: China

Supply Ability: According To Client's Request

Certificate: ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2015

HS Code: 7307210000

Port: Ningbo Port,Tianjing Port,Shanghai Port

Payment Type: L/C,T/T

Incoterm: FOB,CFR,CIF,EXW

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