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Stainless Steel 904L Flanges

Stainless steel 904l flanges specification

What are stainless steel 904l flanges?

These flanges get manufactured from a low-carbon iron alloy containing chromium, nickel, molybdenum, and copper. Stainless steel 904l flanges get coveted for excellent corrosion resistance, with a pren over 40. These components are widespread in oceanic fittings, chemical processing, pharmaceuticals, and heat-based applications like condenser tubes. Buyers can procure these products for various piping needs, for instance, an aisi 904l reducing flange for connecting pipes of different diameters.

SS 904l slip on flange stockist in India

What are the advantages of using 904l stainless steel flanges over other grades?

The best benefits are above-par corrosion tolerance and adaptability to service temperatures up to 450°c. 904l stainless steel flanges tolerate many abrasive agents like dilute sulphuric acid. They exhibit tensile strength (490mpa) and durability because of their chromium content. A sus 904l plate flange works in chemical processing, heat exchangers, and instrumentation.


Specification of stainless steel 904l flanges

Specifications Size Class
ASTM B649 / SB649 1/2" to 48" 150#, 300#, 600#, 2500#, 900#, 1500#, PN6, PN40, PN10, PN16, PN25, PN64
Flange face type Standard Types
Flate face, raised face, ring type joint ANSI flanges, BS flanges, ASME flanges, EN flanges, DIN flanges Blind, slip on, weld neck, socket weld, threaded flanges

Based in Mumbai, our company is dedicated to providing top-notch 904L SS Flanges and ASTM A182 904L Forged Flange for various application, with fast and reliable delivery services

Which properties of ss 904l flanges make them suitable for various applications?

These flanges are competent at handling abrasive agents, including chlorides, acids (even sulfuric acid when dilute), and salt water. Their toughness does not get lost at cryogenic temperatures. A ss 904l socket weld flange often works in oil and gas sectors, chemical equipment, and air pollution control.

Types of SS 904l flange


SS 904L socket weld flange

SS 904L socket weld flange

DIN 1.4539 904l slip on flanges

DIN 1.4539 904l slip on flanges

SS 904l lap joint flange

SS 904l lap joint flange

SS 904l plate flange

SS 904l plate flange

Our team of experts use NDT techniques like radiographic testing, magnetic particle inspection, and liquid penetrant testing to guarantee the reliability of our DIN 1.4539 SORF Flange and 904L Stainless Steel Flanges

How are aisi 904l forged flanges tested for defects using ndt techniques?

Standard testing for an astm a182 f904l forged flange focuses on non-destructive tests. The typical approaches are visual inspection, hydrostatic testing, and the ultrasonic route. Clients can request a third-party referral based on specific quality control needs.

Chemical composition of SS 904l blind flange


Grade Density Tensile strength Melting points Elongation Yield strength(0.2% offset)
SS 8.0g/ cm3 PSI-75000, MPa-515 1400°C (255°F) 35% PSi-30000, MPa-205
We are a trusted supplier of SUS 904L Socket Weld Flange, known for their exceptional quality and performance in extreme temperatures and corrosive environments, see manufacturing process of UNS N08904 Blind Flange

How does the manufacturing process impact the quality and performance of ss 904l blind flanges?

These flanges have a unique chemical composition, including chromium, nickel, molybdenum, and copper. A uns n08904 blind flange also uses silicon, nitrogen, manganese, phosphorous, and sulfur during production. Accurate manufacturing techniques using heavy-duty equipment ensure high-quality components. Quality control at each step of production of a 904l stainless steel forged ring is essential. The main steps are sourcing raw materials, forging, rolling, casting, machining, and heat treatments.

Mechanical properties of SS 904l slip on flanges


C Si Mn S P Ni Cr
0.08 max
0.75 Max
2 max
0.030 max
0.045 max
8 - 11
18 - 20
To check the specifications of 904L Stainless Steel Industrial Flange and AISI 904L Reducing Flanges, read more about its dimensional standards and size range

What are the dimensional specifications of 904l slip on flanges?

The classic sizes for these components are 1/2" to 48" for raised face or flat face flanges. A din 1.4539 sorf flange (slip on raised face) is commonly produced in 1/8" to 36". The wall thickness can be from 3mm to 40mm. Customers can ask for non-standard sizes per their needs.

Equivalent grade of SS 904l weld neck flange


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

Sizes of SS 904l socket weld flanges


Products Size
ASTM A182 SS 904L weld neck flanges ASTM A182 SS 904L slip-on flanges Sizes 1/8″ – 36″
Raised face / flat face
ASTM A182 SS 904L socket weld flanges ASTM A182 SS 904L threaded flanges
ASTM A182 SS 904L lap joint flanges ASTM A182 SS 904L blind flanges
ASTM A182 SS 904L ring joint type face ASTM A182 SS 904L plate flanges
ASTM A182 SS 904L reducing flanges ASTM A182 SS 904L orifice flanges
ASTM A182 SS 904L high hub blind flanges ASTM A182 SS 904L spectacle blind flanges
ASTM A182 SS 904L groove & tongue flanges ASTM A182 SS 904L square flanges
ASTM A182 SS 904L expander flanges ASTM A182 SS 904L weldo / nipo flanges
ASTM A182 SS 904L spades & ring spacers flanges ASTM A182 SS 904L long neck weld flanges