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ASTM A403 WP316L Stainless Steel Reducing Tee Butt Weld ASME B16.9 1/2" to 24" SCH40S Low Carbon Seamless

Place of Origin	Shanghai,China
Brand Name	TOBO
Certification	ISO/TUV/SGS
Model Number	Stainless Steel Tee
Minimum Order Quantity	1PC
Price	Negotiable
Packaging Details	Standard Shipping Package
Delivery Time	15-30 Workdays
Payment Terms	T/T,Western Union
Supply Ability	10 Ton/Month

Product Details

Material

ASTM A403 WP316L / UNS S31603 (Low Carbon 18Cr-10Ni-2Mo Stainless Steel)

Standard

ASME B16.9, ASME B16.11, ASME B16.28, MSS SP-43

Size Range

1/2" - 24" (DN15 - DN600) Seamless

Surface Treatment

Annealed And Pickled, Bright Annealed, Polished

Highlight

Stainless Steel 316L Reducing Tee

Low Carbon Butt Weld SS316L Fitting

Welding Grade Reducing Tee

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Product Description

ASTM A403 WP316L Low Carbon Stainless Steel Reducing Tee

TOBO supplies ASTM A403 WP316L low carbon stainless steel reducing tees, the welding-optimized variant of 316. With maximum carbon content of 0.03%, WP316L eliminates the risk of intergranular corrosion after welding without requiring post-weld heat treatment, making it the ideal choice for field-fabricated piping systems in corrosive service.

Product Description

Product: Stainless Steel Reducing Tee - Low Carbon Grade
Material Grade: ASTM A403 WP316L (UNS S31603 / 1.4404)
Size Range: 1/2" - 24" (DN15 - DN600) Seamless
Wall Thickness: SCH10S, SCH40S, SCH80S, SCH160, STD, XS, XXS
Type: Reducing Tee, Seamless Butt Weld
Standards: ASME B16.9, ASME B16.11, ASME B16.28, MSS SP-43

WP316L Chemical Composition

Element	C	Mn	Si	Cr	Ni	Mo	P	S
WP316L (%)	≤0.035	≤2.00	≤1.00	16.0-18.0	10.0-14.0	2.0-3.0	≤0.045	≤0.030

Why Choose WP316L Over WP316?

Feature	WP316L	WP316
Carbon Content	≤0.035% (Low Carbon)	≤0.08%
Post-Weld Sensitization	Not Susceptible	Possible in heavy sections
Post-Weld Heat Treatment	Not Required	Recommended for thick sections
Intergranular Corrosion Test	Passes as-welded (ASTM A262)	Requires annealed condition
Field Welding	Ideal	Good with precautions

Key Advantages

Weld Without Worry: Low carbon eliminates chromium carbide precipitation risk during welding, no post-weld heat treatment needed
As-Welded Corrosion Resistance: Maintains full intergranular corrosion resistance in the as-welded condition per ASTM A262 Practice E
Field Fabrication Friendly: Ideal for construction projects where post-weld annealing is impractical or impossible
Full Molybdenum Benefits: Retains all the pitting and crevice corrosion resistance advantages of WP316 with added weldability
Dual Certified Availability: Can be supplied as WP316/316L dual certified for maximum flexibility

Applications

Field-fabricated chemical piping, offshore platform process piping, pharmaceutical clean systems, semiconductor gas distribution, food and beverage processing lines, brewery and dairy piping, water injection systems, fire water ring mains

Reducing Tee Dimensions Reference

Run x Branch	DN	Run OD (inch)	Branch OD (inch)	Center to End (inch)
2" x 1"	50 x 25	2.375	1.315	2.50
3" x 2"	80 x 50	3.500	2.375	3.38
4" x 2"	100 x 50	4.500	2.375	4.13
4" x 3"	100 x 80	4.500	3.500	4.13
6" x 4"	150 x 100	6.625	4.500	5.63
8" x 6"	200 x 150	8.625	6.625	7.00
10" x 8"	250 x 200	10.750	8.625	8.50
12" x 10"	300 x 250	12.750	10.750	10.00

Packing: Standard Shipping Package | H.S Code: 73072300

Contact TOBO for SS316L reducing tee quotations and factory lead times.

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