ASTM A403 WP316L Tee | SA403 WP316/316L Stainless Steel Pipe Fittings

ASTM A403 WP316L tee is a high-quality butt weld stainless steel pipe fitting used for branch connections in piping systems. Manufactured according to ASTM A403 and ASME B16.9 standards, these fittings provide excellent corrosion resistance, mechanical strength, and long-term reliability in demanding industrial environments.

SA403 WP316 / WP316L tees are available in equal tee and reducing tee designs, making them suitable for distributing fluids or gases in stainless steel pipeline systems.

With the addition of molybdenum (Mo), WP316L stainless steel offers improved resistance to pitting corrosion, chloride corrosion, and chemical attack, making it ideal for aggressive environments.

These stainless steel tee fittings are widely used in:

• Oil and gas pipelines

• Petrochemical plants

• Chemical processing facilities

• Power generation plants

• Marine and offshore industries

• Food processing and pharmaceutical systems

We are a professional manufacturer and exporter of ASTM A403 WP316L tee, SA403 WP316/316L pipe fittings, stainless steel equal tee, and reducing tee fittings.

ASTM A403 WP316L Tee Specifications

Standard

ASTM A403 / ASTM A403M
Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings

Manufacturing Standards

• ASME B16.9 – Factory-Made Butt Weld Fittings

• ASME B16.28 – Short Radius Butt Weld Fittings

• MSS-SP-43 – Lightweight Stainless Steel Fittings

Type

• Equal Tee

• Reducing Tee

Manufacturing Method

• Seamless Tee

• Welded Tee

Size Range

½” NB – 48” NB

Wall Thickness

SCH 10S
SCH 40S
SCH 80S
SCH 160
XXS

Chemical Composition of ASTM A403 WP316L Tee (%)

Mechanical Properties

Dimensions and Size Range

Seamless Butt Weld Tee

½” NB – 24” NB

Welded Butt Weld Tee

½” NB – 48” NB

Custom sizes and special wall thickness can also be manufactured according to project requirements.

Advantages of ASTM A403 WP316L Tee

• Excellent corrosion resistance

• Strong resistance to chloride and chemical corrosion

• High mechanical strength

• Excellent weldability

• Long service life in harsh environments

• Suitable for high-pressure and corrosive pipeline systems

These advantages make WP316L stainless steel fittings ideal for critical industrial applications.

Inspection and Testing

All fittings undergo strict quality inspection procedures including:

• Chemical composition analysis

• Mechanical property testing

• Dimensional inspection

• Visual inspection

Optional testing available upon request:

• PMI (Positive Material Identification)

• Ultrasonic testing (UT)

• Radiographic testing (RT)

• Intergranular corrosion testing

Third-party inspection such as SGS, BV, TUV, or DNV can also be arranged.

Marking

Standard marking includes:

• Material grade

• Standard

• Size

• Heat number

• Manufacturer logo

Custom marking is available upon request.

Packaging

• Plywood cases

• Wooden boxes (fumigation-free)

• Pallet packaging for export

All fittings are securely packed to ensure safe transportation during international shipping.

How to order our A403 WP316L Tee,

Example Order

ASTM A403 WP316L Equal Tee
Standard: ASME B16.9

Size: 1-1/4” (DN32)
Wall Thickness: SCH10S
Material: ASTM A403 WP316L

ASTM A403 WP316L stainless steel tee fittings are widely recognized for their excellent corrosion resistance, high durability, and superior performance in aggressive environments. Fully compliant with ASTM A403 and ASME B16.9 standards, these fittings are trusted solutions for modern industrial piping systems.

With strong resistance to pitting, chloride corrosion, and high-temperature service conditions, SA403 WP316L tee fittings are an ideal choice for critical pipelines in oil & gas, petrochemical, and marine industries.

Related Products

• ASTM A403 WP304 / WP304L Elbow

• ASTM A403 WP316 / WP316L Elbow

• ASTM A403 WP316L Reducer

• ASTM A403 WP316L End Cap

• ASTM A403 WP316L Stub End

• ASTM A182 F316L Weld Nexk Flange

• ASTM A312 TP316L Stainless Steel Pipe