ASTM A403 Stainless Steel WP304 / 304L Reducers

The use of ASTM A403 Stainless Steel WP304 and 304L Reducers is common in many industries, including food and beverage processing, chemical processing, oil and gas, and pharmaceutical manufacturing. These reducers are specially designed to connect pipes with different diameters, gradually reducing a pipe's diameter.
ASTM A403 Stainless Steel WP304 Reducers come in two primary types: Concentric and Eccentric reducers. Concentric reducers feature a symmetrical design with the inlet and outlet in line. They are preferred when there is a need to maintain the same pressure levels in both the larger and smaller diameter pipes. On the other hand, Eccentric reducers feature a non-symmetrical design with an offset alignment between the inlet and outlet. They are commonly used when there is a need to maintain a constant flow of fluid at different pressure levels or when there is a need to prevent the trapping of solids or gasses.

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ASTM A403 Stainless Steel 304L Reducers are highly corrosion-resistant, making them the go-to choice in industries that require an anti-corrosion component. They are used in food and beverage processing, where hygiene and purity are key requirements. The pharmaceutical industry manufactures critical products that require a high level of hygiene. In petrochemical and chemical processing, ASTM A403 Stainless Steel 304L Reducers manage the flow of acids, chemicals, and other corrosive fluids.
One of the primary advantages of ASTM A403 Stainless Steel WP304 and 304L Reducers is their strength and durability. They are built to withstand high temperatures and pressures, making them a reliable choice in industries that require rugged components. Additionally, they are easy to install and maintain, which helps reduce repair and maintenance costs in the long run. Because of their anti-corrosion properties, they are an excellent choice for industries that require durable and reliable components.

Another benefit of ASTM A403 Stainless Steel WP304 and 304L Reducers is their versatility. They are designed to be compatible with a wide range of pipes, which makes them easy to integrate into existing piping systems. Additionally, they come in different sizes, which allows them to handle different flow rates and pressure levels. This versatility makes them a go-to component for industries that require customized solutions.
ASTM A403 Stainless Steel WP304 and 304L Reducers are vital components in many industries' piping systems. They come in different types and sizes, making them versatile and easy to install. Their strength, durability, and anti-corrosion properties make them ideal for harsh industrial environments.


The maximum allowable pressure for ASTM A403 Stainless Steel Reducers depends on the size, temperature, and material used.

The working temperature range for ASTM A403 stainless steel reducers depends on the material used and the application, but they can generally withstand temperatures from -196°C to 816°C.

The dimensions and tolerances for ASTM A403 stainless steel reducers are specified in the standard, depending on the size, type & material used.

Specification of Stainless Steel WP304, 304L Reducers

Spec bag
Buttweld Reducer
Specifications: ASTM A403 / ASME SA403
Dimension Standard : ASME/ANSI B16.9, ASME B16.28, MSS-SP-43
Reducers Range :1/8" - 48"
Type : Seamless / ERW / Welded / Fabricated
Thickness : Schedule 5S, 10S, 20S, S10, S20, S30, STD, 40S, S40, S60, XS, 80S, S80, S100, S120, S140, S160, XXS and etc.
Form : Concentric Reducer, Pipe Reducer, Pipe Concentric Reducers, Fitting Concentric Reducers..

Types of Stainless Steel WP 304, 304L Reducers

Stainless Steel WP304, 304L Concentric Reducers

ASTM A403 WP 304/ 304L Concentric Reducers

  • - ASTM A403 SS WP304 Concentric Reducers
  • - S30403 Concentric Buttweld Reducers
  • - 1.4301 Concentric Pipe Reducers
  • - WP304L SS Concentric Reducers
  • - ASME SA403 SS 304 Concentric Reducers
  • - Stainless Steel WP304L Concentric Reducers Supplier
  • - SS WP304 Concentric Reducers Manufacturer
Stainless Steel WP304, 304L Eccentric Reducers

ASTM A403 WP 304/ 304L Eccentric Reducers

  • - ASTM A403 SS WP304 Eccentric Reducers
  • - S30403 Eccentric Buttweld Reducers
  • - 1.4301 Eccentric Pipe Reducers
  • - WP304L SS Eccentric Reducers
  • - ASME SA403 SS 304 Eccentric Reducers
  • - Stainless Steel WP304L Eccentric Reducers Supplier
  • - SS WP304 Eccentric Reducers Manufacturer

Equivalent Grades for Stainless Steel WP304 / 304L Reducers

STANDARD UNS WNR. AFNOR EN JIS BS GOST
SS 304 S30400 1.4301 Z7CN18-09 X5CrNi18-10 SUS 304 304S31 08Х18Н10
SS 304L S30403 1.4306/1.4307 Z3CN18-10 X2CrNi18-9 / X2CrNi19-11 SUS 304L 304S11 03Х18Н11

Stainless Steel 304, 304L Reducers Chemical Composition

Grade C Mn Si P S Cr Mo Ni
SS 304 0.08 max 2 max 0.75 max 0.045 max 0.030 max 18 – 20 - 8 – 11
SS 304L 0.035 max 2.0 max 1.0 max 0.045 max 0.03 max 18 – 20 - 8 – 13

Mechanical Properties of Stainless Steel WP304 / 304L Reducers

Grade Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
SS 304/304L 8.0 g/cm3 1400 °C (2550 °F) Psi – 75000, MPa – 515 Psi – 30000, MPa – 205 40 %

Application Industries

  • Refineries
  • Petrochemicals Industry
  • Oil & Gas Industry
  • Mining
  • Construction
  • Pharmaceuticals
  • Automobile