ASTM A420 WPL6 Equal Tee & Reducing Tee – ASME B16.9 Low Temperature Pipe Fittings
ASTM A420 WPL6 Equal Tee and Reducing Tee fittings, manufactured in accordance with ASME B16.9, are engineered for low-temperature and cryogenic piping systems. These butt weld fittings provide excellent toughness, strength, and reliability, making them ideal for oil & gas, LNG, petrochemical, and offshore industries.
Product Overview
- Material: ASTM A420 WPL6 Low Temperature Carbon Steel
- Standard: ASME B16.9 (Butt Weld Fittings)
- Types: Equal Tee (Straight Tee), Reducing Tee
- Size Range: ½” to 48” (DN15–DN1200)
- Wall Thickness: SCH 10, 20, 40, STD, XS, XXS
- Manufacturing: Seamless / Welded / Forged
- End Connection: Butt Weld (BW)
- Heat Treatment: Normalized
Equal Tee vs Reducing Tee
- Equal Tee: All three outlets have the same diameter, used for uniform flow distribution
- Reducing Tee: Branch outlet is smaller, used for flow reduction or branch connection
Equal Tee vs Reducing Tee
Chemical Composition (ASTM A420 WPL6)
| Element | Content (%) |
|---|---|
| Carbon (C) | ≤ 0.30 |
| Manganese (Mn) | 0.60 – 1.35 |
| Phosphorus (P) | ≤ 0.035 |
| Sulfur (S) | ≤ 0.040 |
| Silicon (Si) | 0.15 – 0.40 |
| Nickel (Ni) | ≤ 0.40 |
| Chromium (Cr) | ≤ 0.30 |
| Molybdenum (Mo) | ≤ 0.12 |
| Copper (Cu) | ≤ 0.40 |
👉 Optimized composition ensures superior toughness at low temperatures.
Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | ≥ 415 MPa |
| Yield Strength | ≥ 240 MPa |
| Elongation | ≥ 22% |
| Reduction of Area | ≥ 30% |
Low Temperature Impact Properties
- Test Temperature: -46°C (-50°F)
- Charpy V-Notch Impact Energy:
- Single value ≥ 18 J
- Average of three ≥ 20 J
👉 Ensures excellent resistance to brittle fracture in cold environments.
Hardness Requirement
- Max Hardness: ≤ 197 HB
Guarantees good weldability and prevents cracking risks.
NACE Compliance (Sour Service)
WPL6 tees can be supplied for sour service applications:
NACE MR0175 / ISO 15156
- Hardness ≤ 22 HRC
- Controlled S & P content
- SSC (Sulfide Stress Cracking)
- NACE certification available
Applications
- LNG & Cryogenic Pipelines
- Oil & Gas Transmission Systems
- Offshore Platforms
- Petrochemical Plants
- Power Generation
- Marine & Shipbuilding
Global Supply & Target Markets
We export ASTM A420 WPL6 Equal & Reducing Tees worldwide:
- 🇺🇸 USA – Texas, Louisiana, California
- 🇨🇦 Canada – Alberta Oil Sands
- 🇦🇪 Middle East – UAE, Saudi Arabia, Qatar
- 🇪🇺 Europe – Germany, Italy, Netherlands
- 🇯🇵 Japan / 🇰🇷 South Korea
- 🇮🇳 India & Southeast Asia
Trusted supplier for EPC contractors, distributors, and stockists globally.
Packaging & Documentation
- Seaworthy wooden cases / pallets
- EN 10204 3.1 / 3.2 MTC
- Third-party inspection (SGS, BV, TUV, DNV)
- Marking: Heat No., Size, Standard, Material Grade
A420_WPL6_Equal_Tee_Specificiation
Related Butt Weld Fittings
Other fittings manufactured according to ASTM A420 WPL6 and ASME B16.9 include:
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