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Stainless Steel 304L Flanges

ASTM A182 / ASME SA182 Grade F304L Stainless Steel Flanges from ½″ to 48″, Class 150# to 2500#

Home Flanges Stainless Steel 304L Flanges

Stainless Steel 304L Flanges Manufacturer in India

Flange Product

Ganpat Metal manufactures and supplies SS 304L flanges in India as per ASTM A182 / ASME SA182. We offer 304L flanges in different sizes, pressure classes and dimensional standards for industrial piping and equipment.

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Stainless Steel 304L Flanges Technical Data & Specifications Matrix

Specifications of Stainless Steel 304L Flanges

Technical Parameter Specification
Material Specification ASTM A182 / ASME SA182
Size Range ½" (15 NB) to 48" (1200 NB)
Dimensional Standards ANSI/ASME B16.5, ASME B16.47 Series A & B, ASME B16.48, BS4504, BS10, EN-1092, DIN
Regional / Body Standards ANSI, ASME, BS, DIN, EN
Pressure Classes 150#, 300#, 600#, 900#, 1500#, 2500#
PN Ratings PN6, PN10, PN16, PN25, PN40, PN64
Material Grade Stainless Steel 304L / UNS S30403

Stainless Steel 304L Flange Standards and Pressure Classes

Standard Application / Range
ASME B16.5 Standard pipe flanges
ASME B16.47 Series A & B Large-diameter flanges
ASME B16.48 Line blanks
BS4504 PN-rated flanges
BS10 Table-based dimensions
EN-1092 European PN-rated flanges
DIN DIN dimensional standards

Available Pressure Classes & Systems

Pressure System Available Classes
ASME / ANSI 150#, 300#, 600#, 900#, 1500#, 2500#
EN / DIN PN6, PN10, PN16, PN25, PN40, PN64

Chemical Composition of SS 304L Flanges

Grade C Max Mn Max Si Max P Max S Max Cr Mo Ni N
SS 304L / S30403 0.035 2.0 1.0 0.045 0.03 18.0–20.0 — 8.0–13.0 —

Mechanical Properties of SS 304L Flanges

Property SS 304L / A182 F304L
Tensile Strength 70,000 psi (485 MPa)
Yield Strength, 0.2% Offset 30,000 psi (205 MPa)
Elongation 35%
Density 8.0 g/cm³
Melting Point 1400°C (2550°F)

Stainless Steel 304L Equivalent Grades

Standard Equivalent Grade
UNS S30403
Werkstoff No. 1.4307
JIS SUS 304L
BS 304S11
GOST 03Х18Н11
AFNOR Z3CN18–10
EN X2CrNi18-9 / X2CrNi19-11

SS 304L Flange Sizes and Dimensions

Parameter Available Range
Nominal Size ½" to 48"
Nominal Bore 15 NB to 1200 NB
ASME B16.5 ½" to 24"
Large Diameter Up to 48", as applicable
ASME Pressure Classes 150# to 2500#
EN / DIN Ratings PN6 to PN64

SS 304L Flange Dimension Chart

Representative dimensional data for SS 304L flanges is provided below:

Standard Class / Table Flange OD (mm) Bolt Circle (mm) No. of Bolts Bolt Size Bolt Hole (mm)
AS4087 PN14 95 67 4 M12 14
AS 2129 Table C 95 67 4 1/2" 14
AS 2129 Table H 114 83 4 5/8" 17
ANSI B16.5 Class 150 89 60.5 4 1/2" 16
ANSI B16.5 Class 300 95 66.7 4 1/2" 16
ANSI B16.5 Class 600 95 66.7 4 1/2" 16
ANSI B16.5 Class 900 121 82.5 4 3/4" 22
ISO 7005 / DIN PN6 80 55 4 M10 11
ISO 7005 / DIN PN16 95 65 4 M12 14
ISO 7005 / DIN PN40 95 65 4 M12 14

SS 304L Flange Weight Chart

Pipe Size NB Flange OD (mm) Thickness (mm) Bolt Circle (mm) No. of Bolts Weight (kg)
½" 15 89.0 11.2 60.5 4 0.4
¾" 20 98.5 12.7 69.9 4 0.7
1" 25 108.0 14.2 79.3 4 0.8
1¼" 32 117.5 15.7 88.9 4 1.2
1½" 40 127.0 17.5 98.6 4 1.5
2" 50 152.5 19.1 120.7 4 2.3
2½" 65 178.0 22.4 139.7 4 3.7
3" 80 190.5 23.9 152.4 4 4.1
4" 100 228.5 23.9 190.5 8 5.9
6" 150 279.5 25.4 241.3 8 8.4
8" 200 343.0 28.4 298.5 8 13.0
10" 250 406.5 30.2 362.0 12 18.0
12" 300 482.5 31.8 431.8 12 29.0
16" 400 597.0 36.6 539.8 16 47.0
20" 500 698.5 42.9 635.0 20 76.0
24" 600 813.0 47.8 749.3 20 97.0

SS 304L Stainless Steel Flange Weight Calculator

Select Flange options below and click the "Calculate Weight" button to reveal exact weight.

SS 304L Flange Manufacturing and Inspection

SS 304L flanges are manufactured through forging, solution treatment and precision machining according to the specified material and dimensional requirements.

Inspection and documentation can include:

  • Chemical composition analysis
  • Mechanical testing
  • Dimensional inspection
  • Positive Material Identification (PMI)
  • Hydrostatic testing, where required
  • Heat number and material marking
  • EN 10204 3.1 / 3.2 documentation
  • Third-party inspection reports, where specified

SS 304L Flange Applications

  • Chemical processing plants
  • Petrochemical industries
  • Oil and gas piping
  • Food processing equipment
  • Pharmaceutical plants
  • Water treatment systems
  • Power generation
  • Process piping
  • Industrial equipment
  • General engineering applications

SS 304L Flanges Manufacturer and Supplier in India

Ganpat Metal supplies SS 304L / ASTM A182 F304L flanges in different sizes, pressure classes and dimensional standards. Custom specifications and inspection requirements can be supplied according to project and procurement requirements.

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Why Choose Ganpat Metal for SS 304L Flanges?

  • ASTM A182 / ASME SA182 SS 304L flanges
  • Sizes from ½" to 48"
  • ASME Classes 150# to 2500#
  • PN6 to PN64 options
  • Multiple dimensional standards
  • PMI and dimensional inspection
  • EN 10204 3.1 / 3.2 documentation where specified
  • Third-party inspection support
  • ISO-certified and MSME-registered company

Request a Quote for SS 304L Flanges

Share your required size, pressure class, dimensional standard, quantity and inspection/documentation requirements with Ganpat Metal for an SS 304L flange quotation.

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Related Stainless Steel Flanges

For other grades and specifications, see the complete Stainless Steel Flanges range from Ganpat Metal, including related SS 304, SS 316 and SS 316L flange options.

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