ASTM A403 WP304 Stainless Steel Pipe Elbow

Corrosion-Resistant Butt Weld Elbows for Seamless Pipeline Direction Change

Discover astm a403 wp304 stainless steel pipe elbows designed for superior corrosion resistance in industrial piping.

WP304 Stainless Elbow ASTM A403 WP304 Stainless Steel Pipe Elbow Astm A403 Wp304 Elbow +1 More

ASTM A403 WP304 Stainless Steel Pipe Elbow

Corrosion-Resistant Butt Weld Elbows for Seamless Pipeline Direction Change

Discover astm a403 wp304 stainless steel pipe elbows designed for superior corrosion resistance in industrial piping. ideal for food processing, marine, and petrochemical systems, these elbows ensure durability and performance.

WP304 Stainless Elbow ASTM A403 WP304 Stainless Steel Pipe Elbow Astm A403 Wp304 Elbow +1 More

ASTM A403 WP304 Stainless Steel Pipe Elbow for Corrosion-Resistant Piping

ASTM A403 WP304 Stainless Steel Pipe Elbows are high-quality pipe fittings designed for corrosion-resistant and industrial piping systems, compliant with ASME B16.9 standards. These seamless or welded elbows offer exceptional corrosion resistance and erosion resistance, making them ideal for boiler pipeline protection in industries such as food processing, marine, pharmaceuticals, and petrochemical plants.

ASTM A403 WP304 elbows are manufactured through hot-forming or cold-forming processes, ensuring durability and strength at temperatures up to 870°C. With high chromium (18.00-20.00%) and nickel (8.00-11.00%) content, they provide superior resistance to corrosion, oxidation, and chemical degradation in harsh environments. Available in long-radius (LR, R=1.5D), short-radius (SR, R=1D), and reducing configurations, these elbows support angles of 90°, 45°, and 22.5° for versatile industrial piping designs.

These elbows support welding, bending, and flanging, with excellent weldability due to low carbon content (WP304L for even better weldability). Available in sizes from 1/2” to 24” (DN15 to DN600) and wall thicknesses from SCH 10 to SCH 160, they meet diverse pipeline requirements. Rigorous testing, including tensile, flattening, and hydrostatic tests, ensures compliance with ASTM A403 standards for high-performance service.

WP304 elbows can be polished or coated (e.g., FBE, 3LPE, passivation) to enhance corrosion resistance, protecting against rust and chemical attack in demanding environments. Their hygienic properties and durability make them ideal for boiler pipeline protection in food processing, marine applications, and high-temperature petrochemical systems.

For engineers seeking reliable corrosion-resistant piping solutions, ASTM A403 WP304 stainless steel pipe elbows deliver unmatched performance, safety, and longevity, addressing challenges like pipeline corrosion, chemical exposure, and high-temperature demands.

Chemical Composition of ASTM A403 WP304 Elbow
Element	Composition (%)
Carbon (C)	≤0.08
Manganese (Mn)	≤2.00
Phosphorus (P)	≤0.045
Sulfur (S)	≤0.030
Silicon (Si)	≤1.00
Chromium (Cr)	18.00-20.00
Nickel (Ni)	8.00-11.00

Mechanical Properties of ASTM A403 WP304 Elbow
Property	Value
Tensile Strength, min (MPa)	515
Yield Strength, min (MPa)	205
Elongation, min (%)	35 (Longitudinal)
Hardness, max (HBW)	192

Comparison of ASTM A403 WP304 Elbow with Other Fittings
Feature	ASTM A403 WP304	ASTM A234 WPB	ASME SA335 P91
Material Type	Stainless Steel	Carbon Steel	Alloy Steel
Temperature Range	High (up to 870°C)	Moderate (-29°C to 425°C)	High (up to 650°C)
Corrosion Resistance	Superior (Austenitic)	Moderate	Excellent (High Cr/Mo/V)
Erosion Resistance	Moderate	Good	Excellent
Creep Strength	Good	Moderate	Superior
Applications	Food Processing, Marine, Petrochemical	General Piping, Boilers	Power Plants, Petrochemical
Key Advantage	Superior corrosion resistance	Cost-effective strength	Superior creep strength

Key Benefits

Corrosion Resistance

High Cr/Ni content ensures superior resistance to rust and chemical attack.

Erosion Resistance

Robust stainless steel withstands wear in demanding environments.

High-Temperature Strength

Performs reliably up to 870°C in high-temperature applications.

Weldability

Excellent weldability for secure and hygienic pipeline configurations.

Cost-Effective

Long lifespan reduces maintenance in corrosive environments.

Versatile Configurations

Available in LR, SR, and reducing designs for diverse applications.

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A curated list of long-tail keywords for ASTM A403 WP304 stainless steel pipe elbows, covering specifications, applications, and material properties.

Standards and Specifications

• ASTM A403 WP304 elbow standards
• ASME B16.9 WP304 elbow specifications
• Corrosion-resistant WP304 elbow properties
• Industrial piping WP304 elbow standards

Applications

• ASTM A403 WP304 elbows for food processing
• WP304 stainless steel elbows for marine applications
• Industrial piping WP304 elbows for petrochemical
• Corrosion-resistant WP304 elbows for pharmaceuticals
• WP304 elbows for boiler pipeline protection

Material and Grades

• ASTM A403 WP304 elbow material
• Corrosion-resistant WP304 elbow grades
• Stainless steel WP304 elbow properties

Manufacturing and Testing

• ASTM A403 WP304 elbow manufacturing process
• WP304 elbow non-destructive testing
• Corrosion-resistant WP304 elbow quality testing
• Industrial piping WP304 elbow inspection

Procurement and Suppliers

• ASTM A403 WP304 elbow suppliers
• Corrosion-resistant WP304 elbow distributors
• Stainless steel WP304 elbow price

Dimensions and Customization

• ASTM A403 WP304 elbow dimensions
• Industrial piping WP304 elbow tolerances
• Custom WP304 stainless steel elbow sizes

Note: ASTM A403 WP304 stainless steel elbows are designed for corrosion-resistant and high-temperature applications. Contact a certified supplier for detailed specifications.

An ASTM A403 WP304 stainless steel pipe elbow is a pipe fitting designed for corrosion-resistant and industrial piping systems, offering superior durability in food processing, marine, and petrochemical applications.

ASTM A403 WP304 is a stainless steel grade with high Cr/Ni content for superior corrosion resistance and high-temperature performance (up to 870°C). ASTM A234 WPB is a carbon steel grade for moderate temperatures (-29°C to 425°C) with lower corrosion resistance and cost.

WP304 elbows are available in 90°, 45°, and 22.5° angles, with 60° and 120° options for specialized industrial piping systems, ensuring flexibility in corrosion-resistant applications.

A reducing WP304 elbow connects pipes of different diameters, available in LR (R=1.5D) or SR (R=1D) configurations. It ensures corrosion resistance and performance in complex industrial piping layouts.

ASTM A403 WP304 elbows are made from austenitic stainless steel with chromium (18.00-20.00%) and nickel (8.00-11.00%) for superior corrosion resistance in industrial piping.

WP304 elbows are produced via hot-forming or cold-forming, ensuring corrosion resistance and strength for industrial piping applications, with optional polishing for hygienic uses.

Quality is ensured through: - Back Arc Thickness: Measured with a thickness gauge to detect thinning.
- Dimensional Checks: Inner/outer diameters and center height.
- Radiographic Inspection: Detects defects like pores or slag inclusions.
- Testing: Tensile, flattening, and hydrostatic tests per ASTM A403.

WP304 elbows offer superior corrosion resistance and durability up to 870°C, making them ideal for boiler pipeline protection and hygienic applications in food processing, marine, and petrochemical industries.

Finishes and coatings include: - Polishing (for hygienic applications)
- FBE coating
- 3LPE coating
- Passivation
These enhance corrosion resistance for boiler pipeline protection.

Calculate the back arc length: L = D * 3.14 (D = pipe diameter). For stainless steel: Weight (kg) = (D * a * 0.02491 * L) / 1000, where a is wall thickness. This ensures accurate sizing for industrial piping.

What is the ASTM A403?

ASTM A403 Stainless Steel Pipe Fittings refers to the material of forged and rolled austenitic stainless fittings for pressure pipes.

Common grades are WP304/L, WP316/L. They can be used into many fields as engineering industry, energy conversion plants etc. ASTM A403 Standard specification covers the standard for wrought austenitic stainless steel fittings for pressure piping applications.

Austenitic Stainless Steel Butt-Welding Fittings (WP-Series) - Chemical Composition & Mechanical Properties (ASTM A403/A351)
Chemical composition in weight percentage; Mechanical properties: ób (Tensile Strength, MPa), óS (Yield Strength, MPa), δ5 (Elongation, %)
(WP Grade)	C (Carbon)	Si (Silicon)	S (Sulfur)	P (Phosphorus)	Mn (Manganese)	Cr (Chromium)	Ni (Nickel)	Mo (Molybdenum)	Other Elements	ób (Min)	ós (Min)	δ5 (Min)
WP304	≤0.08	≤1.00	≤0.030	≤0.045	≤2.00	18.0-20.0	8.0-11.0	-	-	515	205	28
WP304H	0.04-0.10	≤1.00	≤0.030	≤0.045	≤2.00	18.0-20.0	8.0-11.0	-	-	515	205	28
WP304L	≤0.035	≤1.00	≤0.030	≤0.045	≤2.00	18.0-20.0	8.0-13.0	-	-	485	170	28
WP304LN	≤0.030	≤0.75	≤0.030	≤0.045	≤2.00	18.0-20.0	8.0-10.5	-	N:0.10-0.16	515	205	28
WP304N	≤0.08	≤0.75	≤0.030	≤0.045	≤2.00	18.0-20.0	8.0-11.0	-	N:0.10-0.16	550	240	28
WP309	≤0.15	≤1.00	≤0.030	≤0.045	≤2.00	22.0-24.0	12.0-15.0	-	-	515	205	28
WP310	≤0.15	≤1.50	≤0.030	≤0.045	≤2.00	24.0-26.0	19.0-22.0	-	-	515	205	28
WP316	≤0.08	≤1.00	≤0.030	≤0.045	≤2.00	16.0-18.0	10.0-14.0	2.0-3.0	-	515	205	28
WP316H	0.04-0.10	≤1.00	≤0.030	≤0.045	≤2.00	16.0-18.0	10.0-14.0	2.0-3.0	-	515	205	28
WP316L	≤0.035	≤1.00	≤0.030	≤0.045	≤2.00	16.0-18.0	10.0-16.0	2.0-3.0	-	485	170	28
WP316LN	≤0.030	≤0.75	≤0.030	≤0.045	≤2.00	16.0-18.0	11.0-14.0	2.0-3.0	N:0.10-0.16	515	205	28
WP316N	≤0.08	≤0.75	≤0.030	≤0.045	≤2.00	16.0-18.0	11.0-14.0	2.0-3.0	N:0.10-0.16	550	240	28
WP317	≤0.08	≤1.00	≤0.030	≤0.045	≤2.00	18.0-20.0	11.0-15.0	3.0-4.0	-	515	205	28
WP317L	≤0.030	≤1.00	≤0.030	≤0.045	≤2.00	18.0-20.0	11.0-15.0	3.0-4.0	-	515	205	28
WP321	≤0.08	≤1.00	≤0.030	≤0.045	≤2.00	17.0-20.0	9.0-13.0	-	Ti:5×C-0.70	515	205	28
WP321H	0.04-0.10	≤1.00	≤0.030	≤0.045	≤2.00	17.0-20.0	9.0-13.0	-	Ti:4×C-0.70	515	205	28
WP347	≤0.08	≤1.00	≤0.030	≤0.045	≤2.00	17.0-20.0	9.0-13.0	-	Nb+Ta:10×C-1.10	515	205	28
WP347H	0.04-0.10	≤1.00	≤0.030	≤0.045	≤2.00	17.0-20.0	9.0-13.0	-	Nb+Ta:8×C-1.00	515	205	28
WP348	≤0.08	≤1.00	≤0.030	≤0.045	≤2.00	17.0-20.0	9.0-13.0	-	Ta:≤0.10	515	205	28
WP348H	0.04-0.10	≤1.00	≤0.030	≤0.045	≤2.00	17.0-20.0	9.0-13.0	-	Ta:≤0.10	515	205	28

Mechanical Properties of Stainless Steel Grades (Tensile, Yield, Elongation)
Grade	UNS	Tensile Strength, min		Yield Strength, min		Elongation, min (%) in 4D
Grade	UNS	ksi	MPa	ksi	MPa	Longit	Trans
ALL	ALL	75	515	30	205	28	20
304L	S30403	70	485	25	170	28	20
316L	S31603	70	485	25	170	28	20
304N	S30451	80	550	35	240	28	20
316N	S31651	80	550	35	240	28	20
316N	S31726	80	550	35	240	28	20
XM-19	S20910	100	690	55	380	28	20
	S31254	94–119	650–820	44	300	28	20
	S34565	115	795	60	415	28	20
	S33228	73	500	27	185	28	20

Notes:

For each reduction of 0.01% below the specified C maximum, an increase of 0.06% Mn above the specified maximum will be permitted, up to a maximum of 1.35%.

The sum of Cu, Ni, Cr, and Mo shall not exceed 1.00%.

The sum of Cr and Mo shall not exceed 0.32%.

The maximum carbon equivalent (C.E.) shall be 0.50, based on heat analysis and the formula C.E.=C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15.

Material Furnished to this specification shall conform to the requirements of specifications A960/A960M including any supplementary requirements that are indicates in the purchase order. Failure to company with the common requirements of Specification A960/A960M constitutes non-conformance with this specification . In case of conflict between this specification and Specification A960/A960M , this specification shall prevail.

What grade of steel is ASTM A403?

The standard includes several grades of austenitic stainless steel alloys, and uses the WP or CR prefix to mark the grade of steel, depending on the applicable ASTM or MSS size and rated pressure standards. ASTM A403 is designed for forged steel pipe fittings, Cast pipe fittings are not suitable.

ASTM A403 WP304 Stainless Steel Pipe Elbow

ASTM A403 WP304 Stainless Steel Pipe Elbow

ASTM A403 WP304 Stainless Steel Pipe Elbow for Corrosion-Resistant Piping