This, in turn, prevents intergranular corrosion. ASME SA182 SS 347 Slip-On Flanges are used with heavy wear exhaust systems and tubes connecting industrial boilers as they are resistant to high oxidation and impart greater toughness at cryogenic temperatures. Our SS UNS S34709 Weld Neck Flanges are manufactured with added Carbon for added toughness and refined high temperature creep properties in the aerospace, petroleum refining and high-temperature steam services. Also We offer wide range of Stainless Steel ASTM A182 347 Flanges such as SS 347 Slip On Flanges, SS 347H Weld Neck Flanges, SS 347 Socket Weld Flanges, SS 347H Blind Flanges, SS 347 Orifice Flanges, SS 347H Spectacle Blind Flanges, SS 347 Screwed / Threaded Flanges, SS 347H Reducing Flanges, SS 347 Ring Type Joint Flanges (RTJ) etc.

Standard Specification For Stainless Steel ASTM A182 347 / 347H Industrial Flanges

Specifications : ASTM A182 / A240 & ASME SA182 / SA240

Dimensions : ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.

Standard : ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.

Size : 1/2" (15 NB) to 48" (1200NB)

Class / Pressure : 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.

Flange Face Type : Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)

ASTM A182 F347 / 347H Stainless Steel Pipe Flanges

Forged and Plate Flanges

Products		Size
ASTM A182 SS 347 Slip-On Flanges	ASTM A182 SS 347H Threaded Flanges	Sizes 1/8″ – 36″ Raised Face or Flat Face
ASTM A182 SS 347H Weld Neck Flanges	ASTM A182 SS 347 Socket Weld Flanges
ASTM A182 SS 347 Blind Flanges	ASTM A182 SS 347H Reducing Flanges
ASTM A182 SS 347H Lap Joint Flanges	ASTM A182 SS 347 Plate Flanges
ASTM A182 SS 347H Orifice Flanges	ASTM A182 SS 347 Forged Flanges
ASTM A182 SS 347 Ring Type Joint Flanges	ASTM A182 SS 347H Square Flanges

Chemical Composition of Grade F347 / 347H Stainless Steel Pipe Flanges

Grade	C	Mn	Si	P	S	Cr	Cb	Ni	Fe
SS 347	0.08 max	2.0 max	1.0 max	0.045 max	0.030 max	17.00 - 20.00	10xC – 1.10	9.00 - 13.00	62.74 min
SS 347H	0.04 – 0.10	2.0 max	1.0 max	0.045 max	0.030 max	17.00 - 19.00	8xC – 1.10	9.0 -13.0	63.72 min

Mechanical Properties of ASTM A182 SS 347 / 347H Plate Flanges

Density	Melting Point	Tensile Strength	Yield Strength (0.2%Offset)	Elongation
8.0 g/cm3	1454 °C (2650 °F)	Psi – 75000 , MPa – 515	Psi – 30000 , MPa – 205	35 %