347, S34700, SAE 30347,B8CA, 8C, 8CA 18-8 Cr-Ni AUSTENITIC STAINLESS STEEL , COLUMBIUM STABILIZED

Description

Alloy 347 (S34700) is a stabilized stainless steel which offers as its main advantage an excellent resistance to intergranular corrosion following exposure to temperatures in the chromium carbide precipitation range from 800 to 1500°F (427 to 816°C). Alloy 347 is stabilized by the addition of columbium and tantalum.
Alloy 347 stainless steel is also advantageous for high temperature service because of its good mechanical properties. Alloy 347 stainless steel offers higher creep and stress rupture properties than Alloy 304 and, particularly, Alloy 304L, which might also be considered for exposures where sensitization and intergranular corrosion are concerns.

Applications

aircraft exhaust, collector rings, expansion joints and in high temperature chemical processing, Chemical Processing, Food Processing – equipment and storage, Petroleum Refining – fluid catalytic cracking units, polythionic acid service,Pharmaceutical Production, Waste Heat Recovery – recuperator

Specifications

S34700 347, SAE 30347 B8CA, 8C, 8CA, AUSTENITIC 18-8 Cr-Ni STAINLESS STEEL, COLUMBIUM STABILIZED
S34709 347H AUSTENITIC Cr-Ni STAINLESS STEEL ( COLUMBIUM STABILIZED) HIGH CARBON
S34710 347HFG AUSTENITIC Cr-Ni STAINLESS STEEL ( COLUMBIUM STABILIZED) HIGH CARBON
S34720 347 F AUSTENITIC Cr-Ni FREE MACHINING STAINLESS STEEL ( COLUMBIUM STABILIZED)
S34723 347Se F AUSTENITIC Cr-Ni N Se BEARING, FREE MACHINING STAINLESS ( Cb STABILIZED)
S34751 347LN AUSTENITIC Cr-Ni STAINLESS STEEL ( COLUMBIUM STABILIZED,NITROGEN STRENGTHENED)

AMS 5642 347F BARS, WIRE, AND FORGINGS
AMS 5642 347Se F BARS, WIRE, AND FORGINGS
AMS 5897 347 SEAMLESS OR WELDED HYDRAULIC TUBING
AMS 5512J 347 SHEET, STRIP & PLATE
AMS 5556G 347 SEAMLESS OR WELDED TUBING
AMS 5558E 347 WELDED TUBING, THIN WALL
AMS 5571G 347 SEAMLESS TUBING
AMS 5575L 347 WELDED TUBING
AMS 5646L 347 BARS, WIRE, FORGINGS, TUBING, AND RINGS
AMS 5654D 347 TUBING AND RINGS
AMS 5674D 347 WIRE
AMS 7229H 347 RIVETS
AMS 7490N 347 RINGS, FLASH WELDED
ASTM A-167 PLATE, SHEET & STRIP
ASTM A-182 FORGED & ROLLED PIPE FLANGES,FITTINGS,& VALVES & PARTS FOR HIGH TEMP
ASTM A-193 BOLTING MATERIAL FOR HIGH TEMP. SERVICE
ASTM A-194 NUTS FOR BOLTS FOR HIGH PRESS/TEMP. SERVICE
ASTM A-213 SEAMLESS BOILER,SUPERHEATER & HEAT EXCHANGER TUBES
ASTM A-240 PLATE, SHEET & STRIP FOR PRESSURE VESSELS
ASTM A-249 WELDED BOILER,SUPERHEATER,HEAT-EXCHANGER & CONDENSER TUBES
ASTM A-269 SEAMLESS & WELDED TUBING GENERAL SERVICE
ASTM A-271 STILL TUBES FOR REFINERY SERVICE
ASTM A-276 BARS & SHAPES
ASTM A-312 SEAMLESS & WELDED PIPES
ASTM A-314 BILLETS & BARS FOR FORGINGS
ASTM A-320 BOLTING MATERIAL FOR LOW-TEMP. SERVICE
ASTM A-336 FORGINGS, ALLOY, FOR PRESSURE&HIGH TEMP. PARTS
ASTM A-358 ELECTRIC-FUSION-WELDED PIPES FOR HIGH TEMP.SERV.
ASTM A-376 SEAMLESS PIPE FOR HIGH TEMP. CENTRAL STATION SERVICE
ASTM A-403 WROUGHT PIPING FITTINGS
ASTM A-409 WELDED LARGER DIAMETER PIPE FOR CORR. & HIGH TEMP.
ASTM A-430 FORGED & BORED PIPE FOR HIGH TEMP.SERVICE
ASTM A-473 FORGINGS
ASTM A-479 BARS & SHAPES FOR BOILERS & PRESSURE VESSELS
ASTM A-511 SEAMLESS MECHANICAL TUBING
ASTM A-554 WELDED MECHANICAL TUBING
ASTM A-580 WIRE
ASTM A-632 SEAMLESS & WELDED TUBING(SMALL DIAMETER) FOR GENERAL SERV.
ASTM A-774 AS-WELDED WROUGHT FITTINGS FOR GEN. CORR. & LOW & MOD. TEMP.
ASTM A-778 WELDED, UNANNEALED TUBULAR PRODUCTS
ASTM A-813 SINGLE OR DOUBLE WELDED PIPE
ASTM A-814 COLD-WORKED WELDED PIPE
DOD-F-224669 FORGING & FORGE STOCK, STEEL BARS & BILLET FOR REFORGING
MIL-P-1144 PIPE & TUBE, SEAMLESS & WELDED
MIL-P-24691-3 PIPE & TUBE, SEAMLESS & WELDED
MIL-S-23195 STEEL BARS & FORGINGS , AUSTENITIC CORROSION RESISTANT STEEL
MIL-S-23196 CORROSION RESISTANT STEEL PLATES
MIL-S-27419 STEEL BILLETS, CORROSION RESISTANT, ANNEALED, PREMIUM QUALITY
MIL-T-16286 SEAMLESS TUBE, MARINE BOILER APPLICATION
MIL-T-6737C WELDED TUBING, CORROSION & HEAT RESISTANT (18-8 STABILIZED)
MIL-T-8606C 18-8 STABILIZED & EXTRA LOW CARBON SEAMLESS OR WELDED TUBING
MIL-T-8973 TUBING, CORROSION & HEAT RESISTANT, FOR AEROSPACE VEHICLE HYDRAULIC SYSTEMS ASSEMBLED BY BRAZING
QQ-S-763 STEEL BARS, WIRE, SHAPES & FORGINGS
QQ-S-766 PLATE, SHEET & STRIP PLATE, SHEET & STRIP
QQ-W-423 WIRE, CORROSION RESISTANT
SAE J405 CHEMICAL COMPOSITIONS OF SAE WROUGHT STAINLESS STEELS
SAE J412 GENERAL CHARACTERISTICS & HEAT TREATMENTS OF STEELS

Available Forms

• Bar
• Centrifugal Castings
• Coil
• Extrusion-shapes
• Forge
• Hex Bar
• Pipe
• Plate
• Rectangle Bar
• Sand Castings
• Sheet
• Square Bar
• Strip
• Tubes
• Wire
• Valves