Threaded Reducing Tee ASTM A815 UNS S41000 Martensitic Stainless Steel 2" SCH80 ASME B16.11

1. Product Description

This product is a threaded reducing tee manufactured from UNS S41000 martensitic stainless steel (Type 410) in accordance with ASTM A815 and ASME B16.11 standards. ASTM A815 specifically covers wrought ferritic, ferritic/austenitic, and martensitic stainless steel pipe fittings, confirming that S41000 is a recognized martensitic grade for such applications . Type 410 is a general-purpose martensitic stainless steel containing approximately 11.5-13.5% chromium, offering high strength and good corrosion resistance in mild environments . A reducing tee has three outlets with the branch outlet being a smaller size than the run . This 2" x 2" x 1.5" SCH80 Class 3000# fitting is designed for NPT threaded connections in small-bore piping systems.

2. Key Product Parameters

3. Application / Usage

This reducing tee is ideal for applications requiring high strength and mild corrosion resistance:

• Oil & Gas: Valve and pump connections, wellhead equipment, gas processing where sour service requirements are met

• Power Generation: Steam and gas turbine components, furnace parts

• Chemical Processing: Mild acids and alkalies, fresh water systems

• Pulp and Paper: Process piping requiring high strength

• General Industry: High-strength fittings for low-corrosion environments

4. Advantages

• High Strength: Martensitic structure provides good mechanical properties, often used when high strength is required

• Heat Resistance: Good scaling resistance up to 650°C

• Cost-Effective: Lower alloy content compared to austenitic and duplex grades offers significant material cost savings

• Threaded Convenience: NPT connection eliminates welding; fast installation and easy disassembly for maintenance

• Reducing Function: Branch outlet (1.5") allows size reduction directly at the tee junction

5. Functions

The threaded reducing tee connects three sections of pipe in a T-shaped configuration with the branch outlet smaller than the run. It enables fluid to be divided from a larger main pipe (2") into a smaller branch pipe (1.5"), or combined from a smaller branch into a larger main line, providing a permanent, leak-proof junction point in small-bore threaded piping systems.

6. Installation Instructions

1. Preparation: Clean pipe threads and tee threads thoroughly; remove all dirt, oil, and debris

2. Thread Sealant: Apply PTFE tape or pipe dope to male threads to ensure a reliable seal

3. Thread Engagement: Screw the tee onto the connecting pipe ends by hand, then tighten with a wrench to appropriate torque

4. Avoid Over-tightening: Do not exceed recommended torque to prevent cracking the fitting body

7. Precautions

• Thread Compatibility: NPT, BSPT, and BSPP threads are not interchangeable; verify thread type per system specification

• Temperature Limitation: Temperatures of 400-580°C should be avoided, as the material tends to lose mechanical properties due to over-tempering and reduced impact resistance

• Corrosion Resistance: Type 410 has lower corrosion resistance than austenitic grades; verify suitability for specific service environment

• Sour Service: When used in sour service, Type 410 requires a maximum hardness of 22 HRC and double tempering at ≥621°C per NACE requirements

• Vibration Sensitivity: Threaded fittings are not recommended on lines subject to significant vibration, thermal shock, or hazardous fluid service

8. Shipping & Delivery

• Standard delivery time is typically 15–30 days, subject to order quantity and specification availability.

9. Payment Terms

• Common international payment methods include T/T (Telegraphic Transfer) and L/C at sight (Letter of Credit).

10. Packaging

• Products are securely packed in plywood cases or wooden crates with internal cushioning to ensure safe transportation and prevent damage during transit.

11. After-Sales / Return & Warranty Policy

• All products undergo strict quality inspection before shipment, with Mill Test Certificates (EN 10204 3.1/3.2) available.

• In case of quality issues, retain original packaging and provide relevant photos or third-party inspection reports.

• Specific return, exchange, and warranty terms are subject to the final sales contract agreement.

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FAQ

1. Are you trading company or manufacturer ?
We are manufacturer ,You can see the certification.
2. How long is your delivery time?
Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.
3. Do you provide samples ? is it free or extra ?
Yes, we could offer the sample for free charge but need pay the cost of freight.
4. What is your terms of payment ?
Payment<=1000USD, 100% in advance. Payment>=1000USD, 50% T/T in advance ,balance before shippment.