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Golden Steel Material is a premier ISO-certified stockist based in Al Jubail. We supply high-performance pipes, fittings, valves, and flanges to the Oil & Gas and Industrial sectors across Saudi Arabia and the GCC.

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ASTM A182 Stainless Steel 304 Flanges

ASTM A182 Stainless Steel 304 Flanges
Sizes: 1/2" to 48" (DN15 to DN1200)
Pressure Class: Class 150 to 2500, PN6 to PN64
Type: Forged, Plate, Blind, Weld Neck
Standard: ASME B16.5, B16.47, EN 1092-1
Face Type: RF, FF, RTJ, Tongue & Groove
Surface Finish: Rust-Proof Oil, Spiral Serrated finish
Process: Forged, Heat Treated, CNC Machined
Origin: India, Japan, USA, Europe
goldenislands.com.sa

ASTM A182 Stainless Steel 304 Flanges are among the most versatile and widely utilized piping connection components across the industrial sector. Manufactured in accordance with the stringent ASTM A182 and ASME SA182 standards, these forged flanges are engineered from high-quality 304 austenitic stainless steel. This chemical composition provides excellent structural strength, high ductility, and reliable resistance to oxidation and general corrosion in moderately corrosive or atmospheric environments. Their consistent performance makes them the benchmark choice for industrial fluid lines.

Our manufacturing facility delivers a complete spectrum of line-joining products, including ASTM A182 F304 weld neck, slip-on, blind, threaded, and socket weld flanges. Available in a complete range of pressure ratings from Class 150 to Class 2500 and PN6 to PN64, these flanges are CNC machined to ensure precise tolerances and smooth seating surfaces. They are extensively used in food processing, chemical delivery lines, municipal water distribution, and low-to-medium temperature oil and gas systems, offering secure, leak-proof joints.



ASTM A182 Stainless Steel 304 Flanges Features

  • » Certification: MTC EN 10204 type 3.1 & NABL Approved Lab Reports
  • » Global Standards: ASTM A182, ASME B16.5, B16.47, EN 1092-1, and DIN
  • » Corrosion Resistance: Excellent oxidation resistance and durability in general service conditions
  • » Value Added Services: Spiral Serration, Mirror Polishing, Pickling, and Custom CNC Machining
  • » Structural Testing: 100% NDT (Radiography, Ultrasonic, Hydrostatic) and PMI Tested
  • » High-Quality Forging: Superior grain structure for leak-proof performance under elevated pressures
  • » Seating Faces: Raised Face (RF), Flat Face (FF), and Ring Type Joint (RTJ) options
  • » Complete Product Range: Full inventory of Slip-On, Weld Neck, Blind, and Socket Weld F304 Flanges

ASTM A182 Stainless Steel 304 Flanges Specification

Size & Pressure Ratings

  • Sizes: 1/2" to 48" (DN15 to DN1200)
  • ASME B16.5: Class 150 to 2500
  • ASME B16.47: Class 75 to 900
  • EN 1092-1 / DIN: PN6 to PN64

WN & SO Specifications

  • Weld Neck (WNRF): For high-pressure/temperature cycles
  • Slip-On (SORF): Low-cost installation, easy pipe alignment
  • Bores: Matches pipe ID (WN) / slightly larger than pipe OD (SO)
  • Face Options: Raised Face (RF) or Flat Face (FF)

Blind & Isolation Flanges

  • Blind Flanges (BLRF): For sealing and isolating pipeline ends
  • Spectacle Blinds: Used for rapid, positive line isolation
  • Types available: Spade, Ring Spacer, and Figure-8 types
  • Testing: Radiographic and UT tested for structural integrity

SW & Threaded Specs

  • Socket Weld (SWRF): Ideal for high-pressure, small-diameter lines
  • Threaded Flanges: No-weld connection via NPT/BSPT threads
  • Sizes: Primarily 1/2" to 4" (DN15 to DN100)
  • Applications: Gas, hazardous chemicals, and utility lines

LJ & Orifice Specifications

  • Lap Joint Flanges (LJ): Mates with stub ends for easy bolt alignment
  • Orifice Flanges: Equipped with precision metering taps
  • Functions: Flow measurement, pressure regulation
  • Scope: ASME B16.36 dimensional standard

Facing & Joint Options

  • RF (Raised Face): High-pressure gasket loading
  • RTJ (Ring Type Joint): Metallic ring gaskets for severe service
  • FF (Flat Face): Prevents flange cracking on cast iron connections
  • TG / MF: Tongue & Groove and Male & Female options

Specialized Flanges

  • Nipo Flanges & Weldos: Branch pipe integration
  • Expander Flanges: Connects pipe to larger valve size
  • Anchor Flanges: Restrains pipeline axial movement
  • Square Flanges: For high-pressure hydraulic lines

Testing & Compliance

  • Certifications: MTC EN 10204 3.1 & IBR Approved
  • Quality Tests: Ultrasonic (UT) & Dye Penetrant (DP)
  • Material Traceability: 100% PMI tested for chemical accuracy
  • Compliance: NACE MR0175 / MR0103 for sour service

Production Details

  • Alloy Grade: F304 / UNS S30400 / Werkstoff 1.4301
  • Process: Closed die forging for ideal grain flow
  • Finishes: 125-250 AARH serrated / mirror smooth
  • Treatments: Solution Annealed & quenched

ASTM A182 Stainless Steel 304 Flanges Detailed Specifications

Specification Details
Specification ASTM A182 / A403 & ASME SA182 / SA403
Grade ASTM A182 F202, F304/304L/304H, F316/316L, F316H, F316TI, F310, F321, F904L
Connect Type/ Flange Face Type Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ), Lap-Joint Face (LJF), Large Male-Female (LMF), Small Male-Female (SMF), Large Tongue & Groove, Small Tongue, Groove
Surface treatment Anti-rust oil, transparent/ yellow/ black anti trst paint, Zinc, hot dipped galvanized
Size Range 1/2" (15 NB) to 48" (1200NB) DN10~DN5000
Pressure DIN:PN6 PN10 PN16 PN25 PN40; ANSI: class: 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS, DIN Standard ND-PN6, PN10, PN16, PN25, PN40, PN64 etc.
JIS: 5K, 10 K, 16 K 20 K,30 K,40 K, 63 K
Standard ANSI DIN,GOST,JIS,UNI,BS,AS2129,AWWA,EN,SABS,NFE etc.
ASME, API, ASTM, BS, DIN, EN, MSS, JIS, AWWA, GOST
ANSI Flange, ASME Flange, BS Flange, DIN Flange, EN Flange
  • B.S : BS4504 , BS3293, BS1560, BS10
  • DIN : DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636, DIN2637, DIN2638
  • ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
  • ANSI : ANSI B16.5, ANSI B16.47(API605), MSS SP44, ANSI B16.36, ANSI B16.48
  • ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48
  • AS 2129: table D; table E; table H
  • The other standard:AWWA C207;EN1092-1, GOST12820, JIS B2220; KS B1503, SABS1123; NFE29203;UNI2276
  • American standard (ANSI)
  • German (DIN)
  • British standard (BS)
  • Any other specilised flanges.
Production technique: Forged, Heat treated and machined
Special Design As per your drawing
AS, ANSI, BS, DIN and JIS
15 NB (1/2″) to 200 NB (8″)
Equal and Reducing Configurations

Stainless Steel Threaded Flange, Slip-On Flange, Socketweld Flange, Weld Neck Flange, Blind Flange
Test Direct-reading Spectrograph,Hydrostatic testing machine,X-ray detector,UI trasonic flaw detector,Magnetic particle detector
Equipment Press machine ,Bending machine,Pushing Machine,electric bevelling machine Sand-blasting machine,etc
Origin West Europe / Japan / Indian / USA / Korean
Test Certificates Manufacturer Test Certificate as per EN 10204 / 3.1B, Raw Materials Certificate, 100% Radiography Test Report, Third Party Inspection Report
Specialized manufacturer of Stainless Steel Blind Flanges, Stainless Steel Table Flanges, Stainless Steel Weld Neck Flanges, Stainless Steel Threaded Flanges, Stainless Steel Slip-On Flanges, Stainless Steel Socketweld Flanges, Stainless Steel Plate Flanges, Stainless Steel Lap Joint Flanges, Stainless Steel Loose Flanges, and Stainless Steel Orifice Flanges. Stainless Steel AS 4087 Water Flanges are available in class 150, 300, 600, 900, 1500 and 2500.
Key markets and industries
  • Bitumen upgraders.
  • Heavy oil refineries.
  • Nuclear power (mostly seamless).
  • Petrochemicals and acids.
Similar Pipe Flange Key Grades
  • SS 304 Flanges
  • SS 304L Flanges
  • SS 304H Flanges
  • SS 310 Flanges
  • SS 310S Flanges
  • SS 316 Flanges
  • SS 316L Flanges
  • SS 317 Flanges
  • SS 317L Flanges
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  • SS 321H Flanges
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Stainless Steel 304 Flanges Type, Size Range & Dimensional Standards

Flange Type Dimension Range Standard / Drawing Valid Norm
Stainless Steel 304 Blind Flanges DN15 – DN2500 DIN2527 PN16 DN150 BL 300lb 6"
½" – 24" Standard ANSI / ASME Class 150 to 2500
Stainless Steel 304 Threaded with neck DN15 – DN150 DIN2566 DN32 / 42.4 TH 300lb 1"
Stainless Steel 304 Threaded Flanges ½" – 24" Standard Threaded NPT / BSPT Sizes
Flanges smooth for welding (Plate) DN15 – DN2500 DIN2576 DN150
Stainless Steel 304 Welding Neck Flanges DN15 – DN2500 DIN2635 DN150 / 168.3 WN 300lb 6", GOST Dy150 Py16
½" – 24" / Dy10 – Dy2400 ASME B16.5 WN Classes 150 – 2500
Stainless Steel 304 loose flanges, smooth Bunde DN15 – DN2500 DIN2642 DN150
Stainless Steel 304 loose flanges Stub DN15 – DN2500 DIN2673 DN150
Stainless Steel 304 Welding flanges with neck DN15 – DN2500 DIN86030 DN150
Stainless Steel 304 Slip On Flanges ½" – 24" SO 300lb 6"
Dy10 – Dy2400 GOST Standard Specifications
Stainless Steel 304 Lap Joint Flanges ½" – 24" LJ 300lb 6"
Stainless Steel 304 Socket Welding Flanges ½" – 3" SW 300lb 6"
Forged and Plate Flanges
(Slip-On, Weld Neck, Blind, Lap Joint, Threaded, Socket Weld, Reducing, Plate)
½" – 36" Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ), Lap-Joint Face (LJF), Large Male-Female (LMF), Small Male-Female (SMF), Large Tongue & Groove, Small Tongue & Groove

Types of ASTM A182 Stainless Steel 304 Flanges

Stainless Steel 304 Weld Neck Flange

Stainless Steel 304 Weld Neck Flange

Stainless Steel 304 Lap Joint Flange

Stainless Steel 304 Lap Joint Flange

Stainless Steel 304 Orifice Flange

Stainless Steel 304 Orifice Flange

Stainless Steel 304 Spectacle Blind Flange

Stainless Steel 304 Spectacle Blind Flange

Stainless Steel 304 Ring Flange

Stainless Steel 304 Ring Flange

Stainless Steel 304 Socket Weld Flange

Stainless Steel 304 Socket Weld Flange

Types of Stainless Steel 304 Flanges

  • Stainless Steel 304 Table Flanges/ SS 304 Flanges
  • Stainless Steel 304 Raised Face Weld Neck Flanges
  • Stainless Steel 304 Threaded Flanges/ SS 304
  • Stainless Steel 304 Raised Face Slip-On Flanges
  • Stainless Steel 304 Socketweld Flanges
  • Stainless Steel 304 Raised Face Blind Flanges
  • Stainless Steel 304 Blind Plate Flanges
  • Stainless Steel 304 Lap Joint Flanges
  • Stainless Steel 304 Flanged Buttweld
  • Stainless Steel 304 Spectacle Blind
  • Stainless Steel 304 Loose Flanges Manufacturer
  • Stainless Steel 304 Orifice Flanges
  • Stainless Steel 304 DIN Flanges/ SS 304 Flange
  • Stainless Steel 304 AS 4087 Water Flanges
  • Stainless Steel 304 ANSI Class 150 Flanges
  • Stainless Steel 304 ANSI Class 300 Flanges
  • Stainless Steel 304 ANSI Class 600 Flanges
  • Stainless Steel 304 ANSI Class 900 Flanges
  • Stainless Steel 304 ANSI Class 1500 Flanges
  • Stainless Steel 304 ANSI Class 2500 Flanges
  • Stainless Steel 304 plate flanges suppliers
  • Stainless Steel 304 anchor flanges
  • Stainless Steel 304 Square Flanges
  • Stainless Steel 304 Blank Flanges suppliers
  • Stainless Steel 304 Screwed Flanges
  • Stainless Steel 304 Ring Type Joint Flanges
  • Stainless Steel 304 Ring Flange/ SS 304 Flanges

ASTM A182 Stainless Steel 304 Flange Chemical Composition

Element Value (%)
Carbon (C) 0.08 max
Manganese (Mn) 2.00 max
Silicon (Si) 1.00 max
Chromium (Cr) 18.00 – 20.00
Nickel (Ni) 8.00 – 11.00
Phosphorus (P) 0.045 max
Sulfur (S) 0.030 max
Iron (Fe) Balance

ASTM A182 Stainless Steel 304 Flange Mechanical Properties

Property Value
Tensile Strength (MPa) 515 min
Yield Strength (0.2% Offset, MPa) 205 min
Elongation in 2 in. or 50mm (%) 30 min
Reduction of Area (%) 50 min
Hardness (Brinell HBW) 201 max
Hardness (Rockwell B) 92 max

Stainless Steel 304 Flanges Ready Stock At Golden Steel Material

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Industrial Locations & Keywords

Industrial Locations & Keywords
Riyadh Industrial Cities (1st, 2nd, 3rd & Sudair)
Jeddah Industrial Cities (1st, 2nd & 3rd)
Dammam Industrial Areas (1st, 2nd & 3rd)
Jubail Industrial City
Yanbu Industrial City
Rabigh Industrial City
Al Khobar Industrial Area
Al Ahsa Industrial City
Madinah Industrial City
Makkah Industrial City
Taif Industrial City
Tabuk Industrial City
Jazan Industrial City
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Flange and valve supplier Saudi Arabia
Fast delivery industrial materials KSA
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