ASTM A312 TP347H Stainless Steel Pipe

Stainless Steel 347H Seamless Pipe & ASME SA 312 TP 347H Welded Pipe manufacturer in India

ASTM A312 Gr Tp347h is an austenitic stainless steel. It has chromium and nickel content which give it the corrosion resistant properties. For extra toughness, the A312 347h material has higher carbon content. The addition of more carbon causes toughness but is also less strong than the low carbon version of the same material. But to overcome the issue, columbium is added in the A312 Tp347h material. The alloy composition makes the material resistant to most oxidizing agents. Regardless of the high carbon content, the SA 312 Tp 347h material has excellent resistance to intergranular corrosion. This makes the 347h Stainless Steel Pipe be applied in applications that operate under high temperatures with high risk of oxidization. The SS 347H Seamless Pipe material is cold drawn and therefore cannot be hardened by heat treatment. But it could be hardened by cold working. The material could also be easily welded upon.

Check dimensions of UNS S34709 Grade 347H Square Pipe, DIN 1.4961 AISI 347H ERW Pipe

Oshwin Overseas is a manufacturer and supplier of the pipes in different shapes. Our SS 347H Square Pipe are used in structural applications due to the extra strength of them. We produce 347H Welded Pipe in other shapes as well. The most common is the Grade 347H Stainless Steel Round Pipe and it is used in heat exchangers, water filtration, boat rails, aerospace applications and a variety of other applications. The AISI 347H Annealed Stainless Steel Welded Pipe is stronger and tough. We manufacture these products under international standards and test them for quality. Your inquiries are welcome.

TP347H Stainless Steel Pipe Sizes Available

TP347H Stainless Steel Seamless Pipes

  • Sizes: 6NB - 1200NB
  • Outside Dia.: 1/8" - 12" NPS
  • Thickness : 0.6 - 12.7 mm
  • Length: Single, Double Random & Cut Length

TP347H Stainless Steel Erw / Welded Pipes

  • Sizes: 1/8” - 36” NB, 1/4” - 36” OD
  • Outside Dia.: 6.35 - 114.3 mm
  • Thickness : 0.8 - 12.7 mm
  • Length: up to 26 Meters

ASTM A312 TP47H Specification Chart

Available Forms and Types Square, Hex, Round, Rectangle, Hydraulic, Honed
Frequently Used Fabricated, 100% X Ray Welded, ERW, Seamless, CDW, Welded
Pipe End Finish Beveled End, Plain End, Treaded
Delivery Condition Cold Drawn, Polished, Bright Annealed, Annealed and Pickled
Surface Coating and Finish 2B, No.4, No.1, No.8 Mirror Finish or custom Finish as per customer Requirements
Pipe Wall Thickness SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS
Industrial Value Added Services Export Packaging, Threading, Threading, Non Beveling, Customer Tagging/ Marking, Destructive, Grooving, Export Documentation, Ultrasonic Testing, Machining, Cutting, Destructive, MTR’s Available, Material testing, Color Coding, Polishing
Marking on AISI 347H Pipes
  1. Specification
  2. Grade
  3. Nominal Pipe Sizes
  4. Pipe Schedule or Wall Thickness
  5. Manufacturing Method (Seamless / Welded)
  6. Heat Number
  7. Manufacturer’s Name or Custom Logo - on request

Marked Pipe Sample: ANSI B36.19 ASTM A312 TP347H 12" NB SCH 40S SEAMLESS HEAT NO. XXXX

Type of A312 TP347H Stainless Steel Pipe

347H Stainless Steel Seamless Pipe

347H Stainless Steel Seamless Pipe

Stainless Steel 347H Welded Pipes

Stainless Steel 347H Welded Pipes

A312 TP347H ERW Pipe

A312 TP347H ERW Pipe

A312 Gr TP347H EFW Pipe

A312 Gr TP347H EFW Pipe

ASTM A312 347H Stainless Steel Pipe Price

US $1.50-$8.00/ Kg

Stainless Steel 347H Pipe for sale

ASTM A312 TP347H Exhaust Pipe TP 347H Stainless Steel DIN 1.4961 Electropolished Pipe
A312 TP347H Schedule 40 Pipe ASTM A312 SS 347H Threaded Pipe
SA 312 TP 347H 3 Inch Pipe Austenitic Stainless Steel 347H Water Pipe
A312 GR TP347H Square Pipe Price SS UNS S34709 Seamless Pipe
A312 TP 347H Round Pipe Stainless Steel UNS S34709 Hollow Pipe
TP 347H Stainless Steel Box Pipe werkstoff nr. 1.4961 Stainless Steel 347H Schedule 80 Pipe
SA312 347H Stainless Steel Polished Pipe ASTM A312 GR TP347H Schedule 10 Pipe
ASTM A312 GR TP347H Dairy Pipe A312 Stainless Steel 347H Rectangular Pipe
A312 Stainless Steel 347H Erw Pipe ASTM A 312 TP 347H Stainless Steel C Class Pipe

ASTM A312 TP347H Mechanical Behaviour

SUS Tensile Strength minimum (MPa) Yield Strength 0.2% Proof minimum (MPa) Elongation minimum (% in 50mm) Hardness
Rockwell B (HR B) maximum Brinell (HB) maximum
347H 515 205 40 92 201

A312 TP347H Composition Table

AISI Ni Mn Si S C Cr P Mo N
TP 347H min. 9.0 00.04 17.0 3.00
max. 13.0 2.0 1.00 00.030 00.10 19.0 00.045 4.00

ASTM A312 TP347H Pipe Material Equivalent

TP347H S34709 1.4961

Why 347h SS is used for Chemical Processing?

The grade 347 is specific austenitic stainless steel made for repeated intermittent exposure to temperatures above 800 degrees Celsius. These are modifications of 304 stainless steel. They are similar to the 321 grade in some mechanical properties but different in that it has columbium in the composition. The material is corrosion resistant to most corrosive media in medium to high temperatures.

This is an important aspect required at chemical processing. The material has minimum yield strength of 205MPa and the minimum tensile strength at 515MPa. This allows the material to withstand high pressure at temperatures above 850 degrees Celsius. The pipes and components also have a good elongation and high hardness. The 304 material can undergo intergranular corrosion above temperatures 850 F. The 347H has a higher carbon content and heat resistant so that it can perform in this temperature range.

The combination of the pressure containment capacities, the strength, hardness, heat resistance and corrosion resistance make it applicable for chemical processing. These properties also make the material used in other high corrosive, high heat applications such as the boiler tubes and casings, radiant super heaters, heat exchanger tubes, oil and gas refineries and aircraft exhaust stacks.