• An ISO 9001:2015 Certified Company
  • Call

    +91 9930108105

  • Address

    Sanghvi Galaxy, Shop No.2, Khetwadi
    10th Lane, Mumbai-400004, India

Stainless steel 316L Buttweld Fittings

Stainless steel 316l buttweld fittings specifications

What are the benefits of sourcing Stainless Steel 316L Buttweld Fittings from us?

Corrosive environments containing seawater, chlorides, and halides employ these components. Stainless steel 316L buttweld fittings comprise chromium, nickel, and molybdenum, but the ultra-low percentage of carbon lends them superior corrosion resistance than comparable grades like 316.

SS 316L fittings are readily weldable and perfect for petrochemicals, pharmaceuticals, wastewater treatment, and food processing.

We ensure premium-quality products adhering to internationally accepted standards, like ASTM A403 WP316L pipe fittings. Our company priorities thorough testing via techniques like flattering, pitting resistance tests, and spectrography. Different designs are available to address client needs, like elbows, a UNS S31603 316L tee, and concentric reducers.

We also guarantee damage-free, quick delivery around the globe in client-specified packing.

Stainless steel 316l reducer supplier in India


Specification of stainless steel 316l buttweld fittings


Specifications Size Pressure class
ASTM A182 / ASME SA182 1/8″-4″ 2000 LBS, 3000 LBS, 6000 LBS, 9000 LBS
Melting points of 316l tee Tensile strength of 316l elbow Types of 316l pipe fittings
1400°C (2550°F) Psi-75000, MPa-515 Elbow, tee, reducer, cap, stub end
Ends Surface treatment Thickness of 316l fittings
 Bevel end / butt weld  Annealed / pickled / polishing 0.5mm - 60mm
American standard Technics Feature of 316l reducer
DIN, EN, GB, ISO, ASME, JIS, ANSI, GOST Casting Corrosion resistant

Manifest alloys specializes in the manufacture of ASTM A403 WP316L elbow, check applications

What are the common challenges with testing large-diameter Stainless Steel 316L Buttweld Fittings?

Large-diameter fittings are indispensable in the petrochemicals and power generation sectors. However, adequate safety and performance testing of such stainless steel 316L pipe fittings poses multiple challenges:

  • Must assess greater thickness with higher precision
  • Must meet industry standards
  • An SS 316L reducer must compensate for variations in diameter (esp. inner dimensions) and eccentricity
  • Hydrostatic testing involves considerable resource consumption
  • Expensive due to requirements of expertise and technology

We use manipulative and non-destructive approaches like hydrostatic testing, visual inspection, and automated ultrasonic examination to guarantee the quality of a stainless 316L pipe bend.

Types of stainless steel 316l buttweld fittings


Stainless steel 316l elbow

Stainless steel 316l elbow

SS 316l pipe fittings

SS 316l pipe fittings

UNS S31603 316L tee

UNS S31603 316L tee

SS 316l reducer

SS 316l reducer

To ensure that you select the right stainless steel 316l buttweld fittings for your application, check our specification table

What are the industry standard dimensions for Stainless Steel 316L Buttweld Fittings? How do they compare to those of other grades of stainless steel?

These fittings conform to the ASTM A403 specification and are available in sizes from 1/8 to 36 inches. You can procure a Werkstoff Nr. 1.4404 stub end in standard sizing from 15 NB to 300 NB across piping schedules. We stock a vast repertoire of fittings from 1/2 to 48 inches (up to 1200 NB).

Clients should note that a stainless steel 316L elbow and similar fittings are typically not as readily available in various sizes as grades like 304, mainly because of higher cost and more specific usage.

Chemical composition of SS 316l 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
Buy UNS S31603 316L tee from manifest alloys in India at factory price

Mechanical properties of SS 316l 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%
We produce WNR 1.4404 cap to meet your requirements, read our datasheet

Equivalent properties of stainless steel 316l tee


Standard Werkstoff nr. UNS JIS BS GOST AFNOR EN
SS 1.4301 S31603 SUS 316L 316S11 / 316S13 03Ch17N14M3 Z3CND17‐11‐02 X2CrNiMo17-12-2

Pressure ratings of SS 316l buttweld fittings


Temperature ratings Pressure class
150 300
1/4 - 1 inch 2 1/2 - 3 inch 1 1/4 - 2 inch
(oC) (oF)
-29 to 66 -20 to 150 300 2000 1000 1500
121 250 225 1575 825 1200
93 200 265 1785 910 1350
204 400 - 935 560 750
260 500 - 510 385 450
149 300 185 1360 735 1050
288 550 - 300 300 300
177 350 150 1150 650 900
232 450 - 725 475 600

More types of ASTM A403 WP316L stainless steel pipe fittings


Products Size
ASTM A403 WP316L stainless steel reducing elbow ASTM A403 WP316L stainless steel reducing cross Sizes 1/2" – 48"
ASTM A403 WP316L stainless steel fabricated tee ASTM A403 WP316L stainless steel end cap
ASTM A403 WP316L stainless steel 45° elbow ASTM A403 WP316L stainless steel tees
ASTM A403 WP316Lstainless steel elbow (SR) ASTM A403 WP316L stainless steel cross
ASTM A403 WP316L stainless steel elbow (LR) ASTM A403 WP316L stainless steel stub ends
ASTM A403 WP316L stainless steel reducer ASTM A403 WP316L stainless steel coupling
ASTM A403 WP316L stainless steel eccentric reducer ASTM A403 WP316L stainless steel 5D elbow
ASTM A403 WP316L stainless steel concentric reducer ASTM A403 WP316L stainless steel 3D elbow

Material testings of 316l reducer


  • Mechanical Testing Such as Tensile of Area
  • Intergranular Corrosion (IGC) Test
  • Hardness Test
  • Flaring Test
  • Chemical Analysis – Spectro Analysis
  • Pitting Resistance Test
  • Positive Material Identification – PMI Testing
  • Micro and MacroTest
  • Flattening Test