Description

Stainless Steel Tees Casting

Stainless Steel Fittings India is a leading manufacturer and exporter of Stainless Steel Cast Tees. Our precision-cast SS tee fittings are produced using shell molding, sand casting, and investment casting processes to provide reliable flow splitting and combining solutions for piping systems in oil & gas, chemical, marine, power, and industrial applications worldwide.

Types of Stainless Steel Cast Tees

• Equal Tees (Straight Tees) – All three outlets of the same diameter
• Reducing Tees – Branch outlet is smaller than the run pipe
• Lateral Tees (Y-Tees) – Branch at 45° for smooth flow diversion
• Barred Tees – With internal bar for pigging operations in pipelines
• Flanged Tees – With integral cast flanges on one or more outlets
• Sweepolet / Weldolet Type Cast Tees – Reinforced branch connections
• Cross Fittings (4-way Tees) – Four-outlet configurations

Material Grades Available

• SS 304 / SS 304L (CF8 / CF3) – ASTM A351
• SS 316 / SS 316L (CF8M / CF3M) – ASTM A351
• SS 321 (CF8C), SS 347 – High-temperature applications
• Duplex SS 2205 (CD4MCu / A182 F51)
• Super Duplex SS 2507 (A182 F53)
• SS 904L (CN7M) – Severe corrosion environments

Casting Processes

• Investment Casting: Complex tee geometries, near-net shape, tight tolerances for small-to-medium sizes
• Shell Molding: Medium-sized tees with excellent dimensional repeatability and surface finish
• Sand Casting: Large tees above DN150, cost-effective for low-volume and custom requirements

Dimensional Standards

• ASME B16.9 – Butt-Welding Fittings
• ASME B16.11 – Forged Socket-Welding and Threaded Fittings
• MSS SP-43 – Wrought and Fabricated Butt-Welding Fittings
• EN 10253-1 / EN 10253-4
• DIN 2615, DIN 2616
• JIS B 2312 / JIS B 2313

End Connections Available

Butt weld ends (BW) per ASME B16.25, socket weld (SW) per ASME B16.11, threaded (NPT/BSP), flanged (RF/FF/RTJ) per ASME B16.5, and plain ends for custom connections.

Applications

• Oil and gas pipelines, refineries, and petrochemical plants
• Chemical process piping and reactor systems
• Marine piping and offshore platform systems
• Power generation steam and condensate systems
• Water treatment and desalination plants
• Pharmaceutical, food, and beverage processing
• HVAC and building mechanical systems

Frequently Asked Questions (FAQs)

Q1: What is a reducing tee and when should it be used?

A reducing tee has a branch outlet that is smaller in diameter than the main run pipe. It is used when the flow rate in the branch is smaller than in the main line, or when connecting a smaller-diameter service line to a main process line. This eliminates the need for a separate reducer fitting after a standard equal tee, reducing the number of weld joints.

Q2: What size range do you manufacture for stainless steel cast tees?

We manufacture stainless steel cast tees from 1/8″ (DN6) to 48″ (DN1200) NPS. Sizes from 1/8″ to 4″ are primarily produced by investment casting or shell molding. Larger sizes from 6″ to 48″ are sand cast. Custom and non-standard sizes are available per drawings.

Q3: What is the price of stainless steel cast tee fittings?

The base price for stainless steel cast tees is USD 11.30 per kilogram. Actual pricing varies by grade, size, wall thickness, end connection, and quantity ordered. Contact us with your specifications for a detailed quotation.

Q4: Can you supply barred tees for pipeline pigging operations?

Yes. We manufacture barred tees (also called pig tees) for pipelines where pigging or internal inspection tools are used. The internal bar prevents the pig from entering the branch outlet. These are particularly important for subsea and buried pipeline systems.

Q5: Do your cast tees comply with ASTM A351 requirements?

Yes. Our stainless steel cast tees in grades CF8 (SS 304 equivalent), CF8M (SS 316 equivalent), CF3 (SS 304L equivalent), and CF3M (SS 316L equivalent) fully comply with ASTM A351 standard covering castings for pressure-containing parts for low-temperature service.

Q6: What NDT testing is available for stainless steel cast tees?

Available NDT includes: Liquid Penetrant Testing (LPT) per ASTM E165, Radiographic Testing (RT) per ASTM E94, Ultrasonic Testing (UT) per ASTM A609, and hydrostatic pressure testing. PMI (Positive Material Identification) by XRF is also offered for material verification.

Q7: Can you manufacture tees with flanged branch connections?

Yes. We cast tees with flanged outlets on the branch, on the run, or on all three connections. These are especially useful where frequent disconnection is needed, such as filter bypass systems and instrumentation connections. Flanged tees can be cast with ASME B16.5 or EN 1092-1 face configurations.

Q8: What wall thickness is available for your cast tees?

Cast tees are available in Standard (STD), Schedule 40, Schedule 80, Schedule 160, and XXH (Double Extra Heavy) wall thicknesses per ASME B36.19M. Custom wall thicknesses designed to meet specific pressure-temperature requirements can be engineered and cast.

Q9: Do you offer heat treatment for stainless steel cast tees?

Yes. All stainless steel castings undergo mandatory solution annealing at 1040–1120°C with rapid water quench to restore microstructure and corrosion resistance. Stress relief heat treatment is also available for specific applications. Full heat treatment certificates are provided.

Q10: What is the lead time for custom cast stainless steel tees?

Standard cast tees in SS 304 and SS 316 are available ex-stock or within 2–3 weeks. Custom configurations or special grades require 4–8 weeks lead time. New designs requiring pattern development take 6–10 weeks for first article delivery.

Q11: Can you manufacture cross fittings (4-way tees) in stainless steel casting?

Yes. We cast four-outlet cross fittings in all standard stainless steel grades. Equal crosses (all four outlets same diameter) and reducing crosses (branch outlets smaller than run) are available. These are used in manifold systems and flow distribution applications.

Q12: Do you offer complete piping system packages including tees, elbows, and flanges?

Yes. Stainless Steel Fittings India offers complete piping component packages including tees, elbows, reducers, flanges, couplings, and custom fittings from a single source. This simplifies procurement, ensures grade consistency, and provides single-point accountability for quality. Contact us for package quotations.