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Stainless Steel 304L Buttweld fittings

Stainless steel 304l buttweld fittings specifications

What are Stainless Steel 304L Buttweld fittings?

This extra-low carbon grade works excellently in corrosive environments like chemical processing plants and waste management. Stainless steel 304L buttweld fittings comprise chromium and nickel (18-8) but limit the carbon content to 0.03%, unlike the 0.08% of their 304 counterparts.

These fittings get produced in several types, like an ASTM A403 WP304L elbow, reducers, and pipe end caps. Their ease of fabrication, formability, and high tensile strength (70 ksi) make them attractive to numerous industrial clients.

Stainless steel 304l tee supplier in India, check applications


Specification of stainless steel 304l buttweld fittings

Grades Bending radius Types
304l R=1D, 2D, 3D, 5D, 6D, 8D, 10D, custom size available Elbow, tee, reducer, cap, stub end
Specifications Size Schedule
ASTM A403 / ASME SA403 1/2" - 48" SCH10, SCH20, STD SCH40, SCH30, SCH60, XS, SCH 80, SCH 100,SCH 160, SCH 120, SCH 140, XXS
Connection Technics Surface
Welded Casting Raw, hairline, pickling, polish

We are using the latest techniques to ensure the highest quality and integrity of SA 403 WP 304L reducer

What are the standard specifications for Stainless Steel 304L Buttweld fittings? How do they ensure quality and consistency?

The widely accepted standard for stainless steel 304L fittings is ASME SA403, catering to wrought products for pressure piping. Manufacturers aim to follow tight tolerances and employ strict quality testing to meet these specifications.

We issue a radiography test report with our deliveries and include full traceability in the Mill Test Certificate. Generally, an ASME SA403 WP304L reducer gets subjected to NDT, flattening, corrosion resistance tests, dye penetrant testing, and other procedures per client needs.

Buyers can order these products in sizes 1/2 to 48″. But DIN 1.4307 seamless fittings are usually manufactured up to 10 inches.

Types of stainless steel 304l pipe Fittings


304l stainless steel buttweld fittings

304l stainless steel buttweld fittings

SS 304l elbow

SS 304l elbow

SA403 wp304l pipe end cap

SA403 wp304l pipe end cap

SA 403 wp 304l reducer

SA 403 wp 304l reducer

We are stainless steel 304l fittings manufacturer in Mumbai, we provide DIN 1.4307 elbow all over India

What are the advantages of using an A403 WP304L tee and SS 304L weld fittings in corrosive and high-temperature environments?

Corrosive conditions demand robust and resilient products. A stainless steel 304L pipe fitting fits the bill perfectly, boasting admirable resistance to atmospheric corrosion, organic acids, alkalis, and water. It suits setups like milk processing, kitchen equipment, and architectural moulding. However, we don’t recommend a UNS S30403 WP304L tee for tackling nitric acid or sulphides.

High-temperature conditions are not a problem for this material since it handles up to 1650°F or 899°C. While SS 304L fittings can withstand severe conditions, their continuous use in the 800–1500°F range should get monitored to avoid embrittlement.

An SA403 WP304L pipe end cap also shows durability and long operational life in extreme conditions without extensive maintenance. Moreover, an SS 304L stub end is budget-friendly compared to more premium alloys.

Chemical composition of SS 304l elbow


C Mn Si P S Cr Ni
0.08 max
2 max
0.75 Max
0.045 max
0.030 max
18 - 20
8 - 11
We offer a range of surface finishes for ASME sa403 wp304L cap, including custom options

Mechanical properties of stainless steel 304l reducer


Grade Density Melting points Tensile strength Yield strength(0.2% offset) Elongation
SS 8.0g/ cm3 1400°C (255°F) PSI-75000, MPa-515 PSi-30000, MPa-205 35%
View specifications to learn more about the quality of our stainless steel 304l stub end

Equivalent properties of SS 304l tee


Standard Werkstoff nr. UNS JIS BS GOST AFNOR EN
SS 1.4301 S30400 SUS 304 304S31 08X18H10 Z7CN18-09 X5CrNi18-10

Other type of stainless steel 304L butt weld fittings


Type of SS 304L butt weld fittings
SS elbows – SR SS crosses
SS elbows – LR SS stub ends/ SS 304L long stub end
SS tees SS 180° SR return bends
SS reducing elbows SS reducing crosses
SS tees SS pipe bends / piggable bends
SS 45° elbows SS 180° LR return bends
SSl eccentric reducers SS concentric reducers
SSl reducers SS couplings
SS 5D elbow SS 3D elbow

Value added services of SS 304L pipe fittings


  • → Mechanical testing
  • → Chemical analysis – spectro analysis
  • → Hardness test
  • → Flattening test
  • → Positive material identification – PMI testing
  • → Micro test
  • → Flaring test
  • → Pitting resistance test
  • → Material test certificates (MTC)
  • → Intergranular corrosion (IGC) test
  • → Heat treatment charts

Dimensions of ASME SA403 WP304L buttweld fittings


Nominal fitting size All fittings Duplex fittings 180° return bend Elbow & tees Reducers 180° return bend Caps 180° return bend
NPS I.D. at End
(1), (3), (4)
O.D. at Bevel (1), (2) Centre to centre Centre to end dimension Overall length Back to face Overall length Alignment of ends
1/2 to 2 1/2 0.03 0.06
-0.03
0.25 0.06 0.06 0.25 0.12 0.03
4 0.06 0.06 0.25 0.06 0.06 0.25 0.12 0.03
26 to 30 0.19 0.25
-0.19
0.12 0.19 0.38
10 to 18 0.12 0.16
-0.12
0.38 0.09 0.09 0.25 0.25 0.06
5 to 8 0.06 0.09
-0.06
0.25 0.06 0.06 0.25 0.25 0.03
20 to 24 0.19 0.25
-0.19
0.38 0.09 0.09 0.25 0.25 0.06
3 to 3 1/2 0.06 0.06 0.25 0.06 0.06 0.25 0.12 0.03
32 to 48 0.19 0.25
-0.19
0.19 0.19 0.38

Applications of DIN 1.4307 SS 304L stub end


  • Textile machinery
  • Pulp and paper industry
  • Oil and gas industry
  • Energy industries
  • Power plants
  • Modern architecture
  • Furniture
  • Home appliances
  • Pharmaceutical processing industry
  • Synthetic fiber
  • Dairy and food processing
  • Water waste projects
  • Fluid piping
  • Heat exchanger