ASTM A420 WPL6 Elbow

Seamless Carbon Steel Wpl6 Elbows For Corrosion-resistant Industrial Piping

Explore our high-quality astm a420 wpl6 elbows designed for low-temperature applications.

ASTM A420 WPL6 Elbow Boiler Pipeline Protection Corrosion Resistance Industrial Piping +2 More

ASTM A420 WPL6 Elbow

Seamless Carbon Steel Wpl6 Elbows For Corrosion-resistant Industrial Piping

Explore our high-quality astm a420 wpl6 elbows designed for low-temperature applications. durable and reliable, our fittings meet industry standards for the oil and gas, chemical processing, and power generation sectors.

ASTM A420 WPL6 Elbow Boiler Pipeline Protection Corrosion Resistance Industrial Piping +2 More

ASTM A420 WPL6 Elbow for Low-Temperature Piping Solutions

ASTM A420 WPL6 Elbows are high-performance pipe fittings designed for low-temperature piping systems, compliant with ASME B16.9 standards. Made from seamless or welded carbon steel, these elbows provide exceptional corrosion resistance and erosion resistance, making them ideal for boiler pipeline protection in cryogenic applications, oil and gas pipelines, and chemical processing plants.

ASTM A420 WPL6 elbows are manufactured through hot-forming or cold-forming processes, followed by normalizing or stress-relieving heat treatments to enhance toughness and impact resistance at temperatures as low as -46°C. With controlled carbon (≤0.30%) and manganese (0.50-1.35%) content, they offer excellent weldability and durability 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 recommended preheating (100-150°C) and post-weld heat treatment (600-650°C) to ensure weld integrity. Available in sizes from 1/2” to 24” (DN15 to DN600) and wall thicknesses from SCH 40 to SCH 160, they meet diverse pipeline requirements. Rigorous testing, including Charpy impact, tensile, and hydrostatic tests, ensures compliance with ASTM A420 standards for low-temperature service.

Enhanced with coatings like 3LPE, FBE, or galvanizing, ASTM A420 WPL6 elbows provide superior corrosion resistance, protecting against rust and chemical degradation in cold environments. Their low-temperature toughness makes them ideal for LNG plants, refrigeration systems, and boiler pipeline protection in power generation.

For engineers seeking reliable low-temperature piping solutions, ASTM A420 WPL6 elbows deliver unmatched strength, safety, and longevity, addressing challenges like pipeline corrosion, thermal stress, and low-temperature embrittlement.

What is ASTM A420 WPL6?

ASTM A420 is the standard specification for wrought carbon steel and alloy steel fittings, primarily designed for low-temperature service. The designation "WPL6" refers to the grade within this specification, meaning it’s specifically a low-temperature carbon steel fitting. This type of steel has been designed to withstand the challenges of sub-zero environments, making it suitable for industries that operate in extreme conditions, such as oil and gas or cryogenic services.

Types of ASTM A420 WPL6 Elbows
Type	Bend Radius	Angle	Applications
Long Radius (LR) Elbow	1.5 × Pipe Diameter	Available in 45° & 90°	Smoother flow, less pressure drop, used in critical piping systems
Short Radius (SR) Elbow	1.0 × Pipe Diameter	Available in 45° & 90°	Compact design, suitable for tight spaces
45° Elbow	LR or SR	45°	Used for minor directional changes
90° Elbow	LR or SR	90°	Most common type, used in general piping systems

Comparison of ASTM A420 WPL6 Elbow with Other Fittings
Feature	ASTM A420 WPL6 Elbow	ASTM A234 WPB Elbow	ASTM A403 WP304 Elbow
Material Type	Carbon Steel (Low-Temp)	Carbon Steel	Stainless Steel
Temperature Range	Low (-46°C to 425°C)	Moderate (-29°C to 425°C)	High (up to 870°C)
Corrosion Resistance	Good (with coatings)	Moderate	Superior (Austenitic)
Erosion Resistance	Good	Good	Moderate
Impact Toughness	Excellent at -46°C	Moderate	Good
Applications	LNG, Cryogenic, Oil & Gas	General Piping, Boilers	Food Processing, Marine
Key Advantage	Low-temp toughness	Cost-effective strength	Superior corrosion resistance

Key Benefits

Corrosion Resistance

Protects against rust and chemical degradation in harsh environments.

Erosion Resistance

Durable carbon steel withstands wear from abrasive fluids.

Low-Temperature Toughness

Excels in cryogenic conditions down to -46°C.

Weldability

Supports welding for secure pipeline configurations.

Cost-Effective

Long lifespan reduces maintenance in low-temperature systems.

Versatile Configurations

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

You Can Also Search ASTM A420 WPL6 Elbows by

A curated list of long-tail keywords for ASTM A420 WPL6 elbows, covering specifications, applications, and material properties.

Standards and Specifications

• ASTM A420 WPL6 elbow standards
• ASME B16.9 WPL6 elbow specifications
• Low-temperature WPL6 elbow properties
• Industrial piping WPL6 elbow standards

Applications

• ASTM A420 WPL6 elbows for boiler pipeline protection
• WPL6 elbows for LNG and cryogenic systems
• Industrial piping WPL6 elbows for oil and gas
• Low-temperature WPL6 elbows for power plants
• Corrosion-resistant WPL6 elbows for chemical processing

Material and Grades

• ASTM A420 WPL6 elbow material
• Corrosion-resistant WPL6 elbow grades
• Low-temperature WPL6 elbow properties

Manufacturing and Testing

• ASTM A420 WPL6 elbow manufacturing process
• WPL6 elbow non-destructive testing
• Low-temperature WPL6 elbow heat treatment
• Industrial piping WPL6 elbow quality testing

Procurement and Suppliers

• ASTM A420 WPL6 elbow suppliers
• Boiler pipeline protection WPL6 elbow distributors
• Corrosion-resistant WPL6 elbow price

Dimensions and Customization

• ASTM A420 WPL6 elbow dimensions
• Industrial piping WPL6 elbow tolerances
• Custom seamless WPL6 elbow sizes

Note: ASTM A420 WPL6 covers carbon steel elbows for low-temperature and corrosion-resistant applications. Contact a certified supplier for detailed specifications.

An ASTM A420 WPL6 elbow is a carbon steel pipe fitting designed for low-temperature piping systems, offering corrosion resistance and impact toughness at temperatures as low as -46°C. It is ideal for boiler pipeline protection in industrial piping.

ASTM A420 WPL6 is optimized for low-temperature service (-46°C) with superior impact toughness, while ASTM A234 WPB is suited for moderate temperatures (-29°C to 425°C) with cost-effective strength. WPL6 offers better performance in cryogenic industrial piping.

WPL6 elbows are available in 90°, 45°, and 22.5° angles, with 60° and 120° options for specialized industrial piping systems, ensuring flexibility in low-temperature applications.

A reducing WPL6 elbow connects pipes of different diameters, available in LR (R=1.5D) or SR (R=1D) configurations. It ensures corrosion resistance and low-temperature performance in complex industrial piping layouts.

ASTM A420 WPL6 elbows are made from low-carbon steel with controlled manganese and silicon for enhanced toughness and corrosion resistance in low-temperature environments like LNG and cryogenic systems.

WPL6 elbows are produced via hot-forming or cold-forming, followed by normalizing or stress-relieving to ensure corrosion resistance and toughness for low-temperature piping.

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: Charpy impact, tensile, and hydrostatic tests per ASTM A420.

WPL6 elbows offer superior impact toughness at -46°C, making them ideal for cryogenic and low-temperature piping systems, with corrosion resistance enhanced by coatings like 3LPE or FBE.

Coatings include: - Light oiling
- Black painting
- FBE coating
- 3LPE coating
- Hot-dip galvanizing
These enhance corrosion resistance for boiler pipeline protection.

Calculate the back arc length: L = D * 3.14 (D = pipe diameter). For carbon steel: Weight (kg) = (D * a * 0.02466 * L) / 1000, where a is wall thickness. This ensures accurate sizing for industrial piping.

Pipe Fitting Standards & Dimensions

Pipe fitting dimensions are in either metric or Standard English. Common fittings include 90° long radius, 45° elbows, and 180° return bends. LR and SR elbows are widely used in heating and cooling units.

B16.1 – Cast Iron Pipe Flanges and Flanged Fittings
B16.3 – Malleable Iron Threaded Fittings
B16.5 – Pipe Flanges and Flanged Fittings
B16.11 – Forged Steel Fittings, Socket-Welding and Threaded
B16.25 – Buttwelding Ends
B16.36 – Orifice Flanges

ASTM A105 – Carbon Steel Forgings for Piping Applications
ASTM A234 – Piping Fittings of Wrought Carbon Steel & Alloy Steel
ASTM A403 – Wrought Austenitic Stainless Steel Fittings
ASTM A420 – Low-Temperature Service Fittings

AWWA C110 – Ductile-Iron and Gray-Iron Fittings
AWWA C208 – Fabricated Steel Water Pipe Fittings

MSS SP-43 – Wrought Stainless Steel Butt-Welding Fittings
MSS SP-75 – High Test Wrought Buttwelding Fittings
MSS SP-83 – Steel Pipe Unions, Socket-Welding and Threaded
MSS SP-97 – Reinforced Forged Branch Outlet Fittings

BSP – British Standard Pipe (BSPT & BSPP threads)
JIS – Japanese Industrial Standards
NPT – National Pipe Thread (U.S. standard tapered & straight)
ISO – International Organization for Standardization
ANSI – Assigns schedule numbers & wall thickness classification

Codes

Define requirements for design, fabrication, materials, tests, and inspection of piping systems.

Standards

Provide design and construction rules for pipe fittings, adapters, flanges, sleeves, elbows, tees, valves, etc.

Factors Affecting Standards

Pressure-temperature ratings
Size & Dimensions
Design & Tolerances
Materials & Coatings
End connections & Threading
Marking & Pattern taper

Bolts & Nuts for Flanges

A193 – Alloy & stainless steel bolting for high temperature/pressure
A320 – Alloy & stainless bolting for low temperature service
A194 – Standard for nuts in multiple material types
AN – U.S. Army-Navy standard fittings (measured in 1/16″ increments)
Dash Size – Inside diameter reference, e.g., “-8” = AN 8 fitting

Materials & Standards

Common Materials

Carbon Steel	A234 WPB (A & C available)
High Yield Carbon	Enhanced strength properties
Stainless Steel	304, 316 (SCH 10 common)
Nickel Alloys	Specialized applications

Standards & Specifications

ASME B16.9	Factory-Made Wrought Steel
ASME B16.28	Short Radius Elbows
ASME B16.25	Buttwelding Ends
MSS SP-97	Welding End Standards

Plain Bevel and Compound Bevel

Bevel of

Butt Weld Pipe Fitting

All welded pipe fittings have beveled ends to allow for ease of welding. This bevel allows for full penetration weld in most cases.

Welding Bevel acc. to

ASME B16.9, Factory-Made Wrought Steel Buttwelding Fittings
ASME B16.28, Buttwelding Short Radius Elbows and Returns
ANSI/ASME B16.25, Buttwelding Ends
MSS SP-97, Socket Welding, Threaded, and Buttwelding Ends

Butt weld pipe fitting bevels provide reliable, high-strength connections for demanding industrial piping applications.

Wide variety for all areas of application Across DIN, EN, and ASME Standards (For Pipes/Fittings/Flanges)
DIN Standard German Industrial Standard	EN Standard European Norm (CEN)	ASME Standard American Society of Mechanical Engineers
Low-Carbon & Low-Temp Steel • St 35.8 I / III • St 35 N • St 52.0 / 52.4	Low-Carbon & Low-Temp Steel • P235GH-TC1 / TC2 • P215NL / P265NL • P355N / NL1 / NH	Low-Carbon & Low-Temp Steel • WPB (ASTM A234, general use) • WPL3 / WPL6 (ASTM A420, low-temp)
Low-Alloy High-Strength Steel • (No direct grade, referenced to EN)	Low-Alloy High-Strength Steel • L360NB / L360NE (API 5L, pipeline steel)	Low-Alloy High-Strength Steel • WPHY 52 (API 5L, high-pressure transmission)
Molybdenum Steel (High-Temp) • 15 Mo 3	Molybdenum Steel (High-Temp) • 16Mo3 (EN 10028, ≤530°C service)	Molybdenum Steel (High-Temp) • (No direct equivalent; referenced to WP11)
Cr-Mo Steel (Medium Cr Content) • 13 CrMo 4 4 • 10 CrMo 9 10	Cr-Mo Steel (Medium Cr Content) • 13CrMo4-5 (≤540°C service) • 10CrMo9-10 (≤540°C service)	Cr-Mo Steel (Medium Cr Content) • WP5 / WP9 (ASTM A234, 5%/9% Cr) • WP11 / WP22 (ASTM A234, 1.25%/2.25% Cr)
High Cr-Mo-V Steel (Super High-Temp) • (No direct grade, referenced to EN)	High Cr-Mo-V Steel (Super High-Temp) • X10CrMoVNb9-1 (EN 10216-2, ≤600°C service)	High Cr-Mo-V Steel (Super High-Temp) • WP91 / WP92 (ASTM A335, 9% Cr, ≤650°C service)

Key Notes on Grade Equivalence

• Equivalence Logic: Grades are grouped by alloy composition (Cr, Mo, V) and service performance (temp/pressure resistance), not exact "one-to-one" matches—mechanical properties (tensile strength, impact toughness) may vary slightly between standards (e.g., DIN St 35.8 ≈ EN P235GH ≈ ASME WPB, but yield strength differs by ±10 MPa).
• Standard Scope: - DIN/EN grades cover European pipes/fittings (EN 10216 for seamless pipes, EN 10028 for plates); - ASME grades (WP-series) are defined in ASTM A234 (fittings), A335 (pipes), A182 (flanges) for American systems.
• Application Considerations: For cross-standard projects (e.g., European equipment with American pipes), verify maximum service temperature (e.g., EN 16Mo3 ≈ ASTM WP11, but 16Mo3 is limited to 530°C vs. WP11 to 593°C) and corrosion resistance (e.g., L360NB for oil pipelines vs. WPHY 52 for offshore transmission) to avoid mismatches.
• Unmatched Grades: Some grades (e.g., DIN 15 Mo 3) have no direct ASME equivalent—use "reference grades" (e.g., WP11) and consult material test reports (MTRs) to confirm compliance with project requirements.

ASTM A420 WPL6 Elbow

ASTM A420 WPL6 Elbow