Stainless Steel 304L Flanges

Stainless Steel 304L Flanges

Arrow Piping Solutions is a reputed manufacturer, supplier, and exporter of ASTM A182 Stainless Steel 304L Flanges in India. We offer a complete range of SS 304L Flanges including Socket Weld Flanges, Plate Flanges, Spectacle Blind Flanges, Lap Joint Flanges, SORF Flanges, and Threaded Flanges—all designed as per ASTM A182 standards and other global specifications.

Stainless Steel 304L is a low-carbon version of 304, known for its excellent corrosion resistance, especially in intergranular environments. It is an austenitic alloy containing chromium and nickel, widely preferred in critical industrial applications due to its strength, toughness, and ease of fabrication.

Arrow Piping Solutions manufactures and stocks SS 304L Flanges in various sizes, thicknesses, and pressure ratings. Our manufacturing meets international standards including ASME, ANSI, DIN, EN, JIS, and BS. These flanges serve diverse sectors such as chemical processing, marine, power transmission, architecture, food & beverage, and pharmaceuticals.

Specifications of Stainless Steel 304L Flanges

• Specification: ASTM A182 / ASME SA182
• Dimension Standard: ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, JIS
• Size: 1/2" (15 NB) to 48" (1200NB)
• Class / Pressure: 150#, 300#, 600#, 900#, 1500#, 2500#, PN6 to PN64
• Flange Face Type: Flat Face (FF), Raised Face (RF), Ring Type Joint (RTJ)

Equivalent Grades

STANDARD	WERKSTOFF NR.	UNS	JIS	BS	GOST	AFNOR	EN
SS 304L	1.4306 / 1.4307	S30403	SUS 304L	3304S11	03Х18Н11	Z3CN18‐10	X2CrNi18-9 / X2CrNi19-11

Chemical Composition

Grade	C	Mn	Si	P	S	Cr	Mo	Ni	N
SS 304L	0.035 max	2.0 max	1.0 max	0.045 max	0.030 max	18.00 - 20.00	-	8.00 - 13.00	-

Mechanical Properties

Density	Melting Point	Tensile Strength	Yield Strength (0.2% Offset)	Elongation
8.0 g/cm³	1400 °C (2550 °F)	75000 psi / 515 MPa	30000 psi / 205 MPa	35%

Standard Sizes and Dimensions

Standard	Class	Diameter	Bolt Circle Diameter	No. of Bolts	Bolt Size	Bolt Hole Dia
ANSI 150	150	89	60	4	13	16
ANSI 300	300	95	67	4	13	16
ANSI 600	600	95	67	4	13	16
ANSI 900	900	121	83	4	19	22
PN10	10	95	65	4	M12	14
PN16	16	95	65	4	M12	14

Application Industries