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Stainles Steel 347H Fittings

Excellent resistance at normal temperatures and also has good resistance to oxidizing and carburizing atmospheres

We manufacture finest quality of butt weld pipe fittings to meet diverse material specification. Our steel butt weld pipe fittings are extremely durable and are available in various shape such as bent,triangular, rectangular etc. Butt weld pipe fittings are ideal multiple connection of pipes and to prevent fluid leakage. Different types of fittings can minimize potential fluid handling system and enhances their over all performance

Calico Metal Supplies and Exports its Stainless steel Fittings in all Stainless steel Grades along with Nickel alloys, Duplex Steel and nickel alloys. Harsh Steel Stocks butt weld stainless pipe fittings, socket weld stainless pipe fittings and screw type stainless steel fittings, Stainless Steel Clamps, Stainless Steel butt weld fittings, Stainless steel Elbows, Stainless steel Reducers, Stainless steel caps, Stainless steel railings, stainless steel fasteners, stainless steel in a variety of sizes.

Fittings are manufactured using premium quality metal alloy and latest techniques. Additionally, our provided fittings are processed adhering to industry standards and quality norms. The offered fittings are examined on set quality parameter in order to deliver better range to the clients. Also, these fittings are made available in various sizes and shapes. Apart from this, clients can get the fittings from us at cost effective rates.

Alloy 347H Fittings is a titanium stabilized austenitic stainless steel with good general corrosion resistance. It has excellent resistance to intergranular corrosion after exposure to temperatures in the chromium carbide precipitation range of 800 – 1500°F (427 – 816°C). The alloy resists oxidation to 1500°F (816°C) and has higher creep and stress rupture properties than alloys 304 and 304L. It also possesses good low temperature toughness. Alloy 347H is the higher carbon (0.04 – 0.10) version of the alloy. It was developed for enhanced creep resistance and for higher strength at temperatures above 1000oF (537°C). In most instances, the carbon content of the plate enables dual certification. Alloy 347H cannot be hardened by heat treatment, only by cold working. It can be easily welded and processed by standard shop fabrication practices.

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 Alloys LLP 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