Views: 2 Author: Site Editor Publish Time: 2025-07-21 Origin: Site
On April 11, 2025, an old customer of our company sent us an inquiry for ASME B16.9 Reducing Tee, which is made of common 304L stainless steel. After receiving the quotation, the customer spoke highly of our professional service and confirmed the order on April 16, 2025. We immediately arranged the production plan and completed the processing, testing and packaging of all products within two weeks, and delivered them on schedule. This cooperation further consolidated our long-term cooperative relationship with this old customer and laid a solid foundation for cooperation on more subsequent projects.
ZIZI is an enterprise specializing in the production and processing of pipes and fittings. The pipes and pipe fittings we produce are mainly used in chemical, petroleum, natural gas, water conservancy, electric power, marine engineering and other fields. The products mainly include seamless pipes, welded pipes, butt-welded pipe fittings, high-pressure forged pipe fittings and flanges of various sizes. The materials include carbon steel, stainless steel, alloy steel, low-temperature steel, duplex steel, base alloy, etc.
Outer Diameter (OD) :
Use a vernier caliper or an outside micrometer to measure the external diameter of the three ports of the tee. When measuring, measurements should be made in different directions (at least two perpendicular directions) and the average should be taken to ensure that the roundness meets the requirements.
Wall Thickness (WT):
Use an ultrasonic thickness gauge or a wall thickness micrometer to measure the wall thickness of each part of the tee, including the main pipe and the branch pipe. Pay special attention to measuring the bends, near the welds, and areas where thinning may occur during the forming process. The wall thickness should meet the minimum wall thickness specified in the standard and allow positive deviation within a certain range.
Center-to-End Dimension (C-E):
This is one of the key dimensions of the reducing tee, which refers to the distance from the center line of the main pipe to the end face of the branch pipe. Use a tape measure or a special measuring instrument to measure and ensure that it is consistent with the design drawing or standard size.
Shape Type | Equal Tee and Reducing Tee |
Size Range | 1/2" - 80" / DN15 - 2000 |
Thickness Schedule | SCH 10 - SCH 160, XXS |
Standard | GB/T12459, GB/T13401, HG/T21635/21631, SH3408/3409， ANSI / ASME B16.9, MSS SP 43, JIS B2311/2312/2313, DIN2605/2615/2616/2617, EN10253 |
Carbon Steel | Q235, 20#, 35#, 45#, 20G,Q345B, 16Mn, ASTM A234 WPB/WPC, A420 WPL6 |
API 5L Grades | ASTM A860 WPHY 42 / 46 / 56 / 60 / 65 |
Alloy Steel | ASTM A234 WP11 / WP12 / WP 5 / WP9 / WP91 / WP92,15CrMoG, 12Cr1MoVG, 12Cr5Mo, 1Cr5Mo, Cr9Mo, 10CrMo910, 12CrMo4-5 |
Stainless Steel | ASTM A403 WP304/304L/304H, 316/316L, 310S, 317,347, 904L, A815 S32205, S31803, 32750, 32760 |
Strong corrosion resistance: 304L stainless steel contains a low carbon content and high chromium and nickel elements, has good corrosion resistance, can resist the erosion of a variety of chemical substances, and is suitable for pipeline systems that transport corrosive media.
High strength: It has high strength and hardness, can withstand greater pressure and impact, and ensure the safe operation of the pipeline system.
Good weldability: 304L stainless steel is easy to weld and can be connected by a variety of welding methods, such as argon arc welding, electric welding, etc. The welding quality is reliable and can ensure the connection strength and sealing between the pipe fittings and the pipeline.
Good high temperature resistance: It can still maintain good mechanical properties and corrosion resistance in high temperature environments and can be used in high temperature pipeline systems.
Hygiene and environmental protection: The surface of stainless steel is smooth, not easy to breed bacteria, and easy to clean and maintain. This is especially important for industries with extremely high hygiene requirements such as food, beverages, and pharmaceuticals.
CHEMICAL | LIMITS | C | Mn | P | S | Si | Ni | Cr |
ASTM A403 WP304 | MIN | 8.0 | 18.0 | |||||
MAX | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 11.0 | 20.0 | |
ASTM A403 WP304L | MIN | 8.00 | 18.00 | |||||
MAX | 0.03 | 2.00 | 0.05 | 0.03 | 1.00 | 12.00 | 20.00 |
MATERIAL | T.S (MPA) | Y.S (MPA) | EL % |
ASTM A403 WP304 | 515 min | 205 min | 28 min |
ASTM A403 WP304L | 485 min | 170 min | 28 min |
Grade | Density(kg/m3) | Elastic Modulus (GPa) | Mean Coefficient of Thermal Expansion (μm/m/°C) | Thermal Conductivity (W/m.K) | Specific Heat 0-100°C(J/kg.K) | Electrical Resistivity (nΩ.m) | |||
0-100°C | 0-315°C | 0-538°C | at 100°C | at 500°C | |||||
304/L/H | 8000 | 193 | 17.2 | 17.8 | 18.4 | 16.2 | 21.5 | 500 | 720 |
Nominal Size | Outside Diameter at Bevel | Center to End | ||
DN | NPS | OD1 x OD2 | C | M |
15 x 10 | 1/2 x 3/8 | 21.3 x 17.1 | 25 | 25 |
15 x 8 | 1/2 x 1/4 | 21.3 x 13.7 | 25 | 25 |
20 x 15 | 3/4 x 1/2 | 26.7 x 21.3 | 29 | 29 |
20 x 10 | 3/4 x 3/8 | 26.7 x 17.1 | 29 | 29 |
25 x20 | 1 x 3/4 | 33.4 x 26.7 | 38 | 38 |
25 x 15 | 1 x 1/2 | 33.4 x 21.3 | 38 | 38 |
32 x 25 | 1 1/4 x 1 | 42.2 x 33.4 | 48 | 48 |
32 x 20 | 1 1/4 x 3/4 | 42.2 x 26.7 | 48 | 48 |
32 x 15 | 1 1/4 x 1/2 | 42.2 x 21.3 | 48 | 48 |
40 x 32 | 1 1/2 x 1/1/4 | 48.3 x 42.2 | 57 | 57 |
40 x 25 | 1 1/2 x 1 | 48.3 x 33.4 | 57 | 57 |
40 x 20 | 1 1/2 x 3/4 | 48.3 x 26.7 | 57 | 57 |
40 x 10 | 1 1/2 x 1/2 | 48.3 x 21.3 | 57 | 57 |
50 x 40 | 2 x 1 1/2 | 60.3 x 48.3 | 64 | 60 |
50 x 32 | 2 x 1 1/4 | 60.3 x 42.2 | 64 | 57 |
50 x 25 | 2 x 1 | 60.3 x 33.4 | 64 | 51 |
50 x 20 | 2 x 3/4 | 60.3 x 26.7 | 64 | 44 |
65 x 50 | 2 1/2 x 2 | 73.0 x 60.3 | 76 | 70 |
65 x 40 | 2 1/2 x 1 1/2 | 73.0 x 48.3 | 76 | 67 |
65 x 32 | 2 1/2 x 1 1/4 | 73.0 x 42.2 |
| 64 |
65 x 25 | 2 1/2 x 1 | 73.0 x 33.4 | 76 | 57 |
| 3 x 2 1/2 | 88.9 x 73.0 | 86 | 83 |
80 x 50 | 3 x 2 | 88.9 x 60.3 | 86 | 76 |
80 x 40 | 3 x 1 1/2 | 88.9 x 48.3 | 86 | 73 |
80 x 32 | 3 x 1 1/4 | 88.9 x 42.2 | 86 | 70 |
90 x 80 | 3 1/2 x 3 | 101.6 x 88.9 | 95 | 92 |
90 x 65 | 3 1/2 x 2 1/2 | 101.6 x 73.0 | 95 | 89 |
90 x 50 | 3 1/2 x 2 | 101.6 x 60.3 | 95 | 83 |
90 x 40 | 3 1/2 x 1 1/2 | 101.6 x 48.3 | 95 | 79 |
100 x 90 | 4 x 3 1/2 | 114.3 x 101.6 | 105 | 102 |
100 x 80 | 4 x 3 | 114.3 x 88.9 | 105 | 98 |
100 x 65 | 4 x 2 1/2 | 114.3 x 73.0 | 105 | 95 |
100 x 50 | 4 x 2 | 114.3 x 60.3 | 105 | 89 |
100 x 40 | 4 x 1 1/2 | 114.3 x 48.3 | 105 | 86 |
Petroleum and natural gas industry: used in pipeline systems for transporting crude oil, natural gas and its derivatives, withstanding high pressure and corrosive media.
Chemical industry: in pipelines for handling various chemicals, acid and alkali solutions, ensuring the safety and stability of fluid transmission.
Pharmaceutical industry: in the process of drug production, used to transport pure water, drug raw materials, etc., with strict requirements on cleanliness and aseptic environment.
Water treatment and water supply system: in systems such as tap water, wastewater treatment and seawater desalination, providing reliable pipeline connections.
Power generation: in steam, cooling water and other systems in power plants, withstanding high temperature and high pressure.
HVAC system: used for fluid transportation and distribution in heating, ventilation and air conditioning systems.
