Inside Banner

Stainles Steel 347H Seamless & Welded Pipe

ASTM A312 Stainless Steel UNS S31700/03 Seamless & Welded Pipes & Tubes

As an acclaimed endeavor of the business, Calico Metal are included in offering an unfathomable exhibit of Stainless Steel 347/347H Pipes and Tubes as a producer, exporter, stockiest and supplier to our residential and worldwide clients. As driving maker and exporter of 347/347H Stainless Steel Pipes and Tubes (too known as WNR 1.4550/1.4961 Pipes and Tubes), we have been extended our business sector system all through the world so that our items have been come to in the abroad commercial center. 347H Stainless Steel is variant of the basic austenitic 18/8 Grade 304 with added Columbium - the introduction of Columbium stabilizes the steel and eliminates carbide precipitation which subsequently causes intergranular corrosion. The steel has excellent forming and welding qualities and excellent toughness even at cryogenic temperatures.

As for national and universal nature of crude materials, we additionally offer these SS 347/347H Pipes and Tubes (likewise perceived as UNS S34700/S34709 Pipes and Tubes) in tweaked sizes and thicknesses according to particular requests by our regarded customers at business sector driving costs. These are accessible in various determination and measurements according to the customers necessities. These are generally utilized as a part of different application industry, for example, oil & gas, chemical industry, conveying water and other fluids etc. We offer to our customers at exhaustive scope of Aluminum Round Bars & Rods at extremely reasonable prices. Calico Metal manufactures, supply and export Stainless Steel Pipes in austenitic, duplex and nickel alloy seamless and welded steel pipes both from coil and from plate. During continuous production from coil, in one single operation the base material can be formed into a pipe, welded, heat-treated and subjected to non-destructive testing. All pipes are pickled and passivated in our 13 meter long with outsourced pickling facilities.

The stainless steel pipes can be manufactured in fixed lengths & random lengths between 4 & 12 meter. Stainless steel Pipes with an outside diameter between 6" (168, 3 mm) and 80" (2032 mm). Calico metal stocks Stainless steel pipes and standard piping which is ordered in accordance with ASME/ASTM SA/A312 with dimensions and weights in accordance with ASME B36.19. ASME B 36.10 available on request. Calico Metal material range includes high performance austenitic stainless steel, high temperature austenitic stainless steel, duplex & super duplex stainless steel and nickel alloy grades. The pipes can be produced in single random or double random lengths. Furthermore Calico metal has fully automatic welding equipment to make circumferential welds to enable the supply of double random lengths with a maximum length of 12 meter. Both 347/347H are used primarily in elevated temperature applications.

Applications

  • Aerospace – piston engine manifolds
  • Chemical Processing
  • Expansion Joints
  • Food Processing – equipment and storage
  • Petroleum Refining – polythionic acid service
  • Waste Treatment – thermal oxidizers

Benefits

  • Higher creep stress and rupture properties when compared with 304
  • Ideal for high temperature service
  • Overcomes sensitization and intergranular corrosion concerns
  • Can be used in elevated temperature applications for ASME Boiler and Pressure Vessel Code applications
  • Due to stabilisation the material offers better overall corrosion resistance when compared to 304/304L
  • Excellent mechanical properties
  • A high carbon version (347H) is also available

Chemical Composition

C Cr Mn Ni P S Si Cb/Ta
347 0.08 max min: 17.0
max: 20.0
2.0 max min: 9.0
max: 13.0
0.04 max 0.30
max
0.75
max
min:10x C
max: 1.0
347H min: 0.04
max: 0.10
min: 17.0
max: 20.0
2.0 max min: 9.0
max: 13.0
0.03 max 0.30
max
0.75
max
min:10x C
max: 1.0

Mechanical Properties

Grade Tensile Strength ksi (MPa) min Yield Strength 0.2% ksi offset ksi (MPa) min Elongation (% in 50mm) min Hardness (Brinell) MAX Hardness (Rockwell B) MAX
347/347H 75
(515)
30
(205)
40 201 95

Physical Properties

Density
lbm/in3
Coefficient of
Thermal Expansion (min/in)-°F
Thermal Conductivity BTU/hr-ft-°F Specific Heat BTU/lbm -°F Modules of Elasticity (annealed)2-psi
at 68 °F at 68 – 212°F at 68 – 1832°F 68-932°F at 32 – 212°F in tension (E)
0.288 9.2 11.4 14.7 0.12 28 x 106

Calico Metal Ind Pvt Ltd exports their products to countries like UAE, Bahrain, Italy, Indonesia, Malaysia, United States, Mexico, Chine, Brazil, Peru, Nigeria, Kuwait, Jordan, Dubai, Thailand (Bangkok), Venezuela, Iran, Germany, UK, Canada, Russia, Turkey, Australia, New Zealand, Sri Lanka, Vietnam, South Africa, Kazakhstan & Saudi Arabia.

Stainless Steel & Special Alloys Materials