ASTM A860 WPHY 60 Equal Tee | MSS SP-75 ASME B16.9 BW Pipe Fittings

ASTM A860 WPHY 60 equal tees are high-yield carbon steel butt weld pipe fittings designed for high-pressure oil & gas transmission pipelines and severe industrial piping systems.

Manufactured according to ASME B16.9 and MSS SP-75 standards, these BW equal tees provide:

high mechanical strength
excellent toughness
reliable pressure resistance
superior weldability

WPHY 60 equal tees are commonly matched with:

API 5L X60 pipes
ASTM A694 F60 flanges

for high-pressure transmission service.

We are a professional manufacturer and exporter of:

ASTM A860 WPHY 60 Equal Tees
MSS SP-75 BW Tees

in China.

What is ASTM A860 WPHY 60 Equal Tee?

An equal tee is a butt weld pipe fitting used to connect three pipes of the same diameter in a piping system.

Equal tees are designed to:

split fluid flow
combine flow streams
create branch connections

ASTM A860 WPHY 60 is a high-yield carbon steel material specifically developed for:

high-pressure gas transmission
oil pipeline systems
severe service piping applications

WPHY stands for:

Wrought Pipe
High Yield

The “60” designation refers to:

minimum yield strength of 60 ksi [415 MPa]

WPHY 60 tees provide:

excellent strength
reliable toughness
superior weldability

ASTM A860 WPHY 60 Tee Specifications

Specification	Details
Product Type	Equal Tee
Material	ASTM A860 WPHY 60
Standard	ASME B16.9
Additional Standard	MSS SP-75
Connection Type	Butt Weld
Manufacturing Type	Seamless / Welded
Service	High Pressure Transmission

Available Size Range

Specification	Range
NPS	1/2” – 48”
Wall Thickness	SCH 10 – SCH XXS
Standard	ASME B16.9

Custom dimensions are available according to project requirements.

ASTM A860 WPHY 60 Equal Tee Dimensions

Equal tees are manufactured according to ASME B16.9 dimensional requirements.

NPS	Center to End (C)
2”	51 mm
4”	102 mm
6”	152 mm
8”	203 mm
12”	305 mm

Detailed ASME B16.9 tee dimension charts are available upon request.

ASTM A860 WPHY 60 Chemical Composition

Element	Typical Requirement (%)
Carbon (C)	≤ 0.20
Manganese (Mn)	≤ 1.40
Phosphorus (P)	≤ 0.030
Sulfur (S)	≤ 0.030
Silicon (Si)	≤ 0.45

Controlled chemistry improves:

weldability
toughness
pressure resistance

Actual chemistry may vary depending on manufacturing process and project requirements.

Mechanical Properties of ASTM A860 WPHY 60

Property	Requirement
Minimum Yield Strength	60 ksi [415 MPa]
Minimum Tensile Strength	75 ksi [515 MPa]
Elongation	≥ 20%

These mechanical properties ensure reliable performance in:

high-pressure pipelines
offshore transmission systems
severe service applications

ASTM A860 WPHY Grades

Grade	Yield Strength
WPHY 42	42 ksi
WPHY 46	46 ksi
WPHY 52	52 ksi
WPHY 60	60 ksi
WPHY 65	65 ksi
WPHY 70	70 ksi

Higher grades provide increased mechanical strength for demanding pipeline systems.

Heat Treatment of ASTM A860 WPHY 60 Equal Tees

ASTM A860 WPHY 60 fittings are commonly supplied in:

normalized condition
normalized and tempered condition
quenched and tempered condition

Heat treatment improves:

grain structure
toughness
weldability
mechanical consistency

Manufacturing Process of WPHY 60 Equal Tees

Typical manufacturing process includes:

hot forming
heat treatment
bevel machining
dimensional inspection

Strict quality control ensures:

dimensional accuracy
wall thickness consistency
reliable butt weld connections

Beveled Ends of BW Equal Tees

Equal tees are commonly supplied with:

37.5° beveled ends
ASME B16.25 welding preparation

Proper bevel machining ensures:

reliable welding
good penetration
strong piping connections

Is ASTM A860 WPHY 60 NACE MR0175 Compliant?

ASTM A860 WPHY 60 equal tees can be manufactured according to:

NACE MR0175
ISO 15156
NACE MR0103

Additional sour service requirements may include:

hardness control
HIC testing
PMI inspection
low sulfur chemistry

NACE compliant fittings are widely used in:

sour gas pipelines
offshore oil systems
refinery piping

NACE MR0175 Hardness Requirements

For sour service applications:

hardness control may be required
HRC limits depend on project specifications

Additional testing can be supplied according to:

oil & gas project requirements
refinery standards
customer specifications

Inspection and Testing

ASTM A860 WPHY 60 equal tees may undergo:

chemical composition analysis
mechanical testing
UT testing
MT testing
dimensional inspection
PMI testing

Third-party inspection is available from:

Products can be supplied with:

EN 10204 3.1 certificates
EN 10204 3.2 certificates

Applications of ASTM A860 WPHY 60 Equal Tees

Oil & Gas Transmission Pipelines

Used in:

high-pressure transmission systems
gas pipelines
crude oil pipelines

Offshore Platforms

Applied in:

subsea systems
offshore process piping

Petrochemical Plants

Suitable for:

high-pressure process piping
refinery systems

Pipeline Manifolds

Used in:

branch connections
flow distribution systems

Their high yield strength makes WPHY 60 tees ideal for severe pressure service.

ASTM A860 WPHY 60 vs ASTM A234 WPB Tee

Property	WPHY 60	WPB
Yield Strength	Higher	Standard
Pipeline Service	High Pressure	General Service
Oil & Gas Use	Excellent	Good
Cost	Higher	Lower

WPHY 60 tees are preferred for:

transmission pipelines
offshore systems
high-pressure service

Frequently Asked Questions

What is ASTM A860 WPHY 60 equal tee?

It is a high-yield carbon steel butt weld tee used in high-pressure transmission pipelines.

What does WPHY mean?

WPHY stands for:

Wrought Pipe High Yield

What is the difference between equal tee and reducing tee?

Equal tees have the same diameter on all outlets, while reducing tees have a smaller branch size.

Are WPHY 60 tees suitable for oil & gas pipelines?

Yes. They are widely used in high-pressure oil & gas transmission systems.

Can ASTM A860 WPHY 60 tees meet NACE MR0175 requirements?

Yes. NACE compliant fittings can be manufactured for sour service applications.

Why Choose Our ASTM A860 WPHY 60 Equal Tees?

We provide:

high-yield forged fittings
NACE compliant materials
strict dimensional inspection
full material traceability
export seaworthy packing
fast delivery
worldwide export support

ASTM A860 WPHY 60 Equal Barred Tee MSS SP75

Our ASTM A860 WPHY 60 equal tees are manufactured according to international standards for reliable high-pressure pipeline performance.

ASTM A860 WPHY 60 Equal Tee MSS-SP-75 ASME B16.9 BW Fittings

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