Stainless Steel 347 and 347H are chromium-nickel austenitic stainless steel alloys renowned for their exceptional corrosion resistance, high temperature strength, and superior mechanical properties. These alloys are widely used in various industrial applications, and their seamless pipes and tubes play a crucial role in ensuring the integrity of critical processes.
Stainless Steel 347 Pipes & Tubes:
The Stainless Steel
347 pipes and tubes are engineered with precision to meet the demanding
requirements of industries such as petrochemical, chemical, and aerospace. These seamless pipes
exhibit excellent corrosion resistance against intergranular corrosion and sensitization, making
them ideal for applications in high-temperature environments.
The key features of Stainless Steel 347 pipes include:
Table Of Content
Stainless Steel 347H Pipes & Tubes:
Stainless Steel 347H is the high-carbon version of the 347 alloy, offering enhanced high-temperature
strength and improved creep resistance. The seamless pipes and tubes made from Stainless Steel 347H
are designed to withstand extreme conditions and provide superior performance in critical
applications.
Key attributes of Stainless Steel 347H pipes include:
Pipe- ASTM A312, ASME SA312 / ASTM A358, ASME
SA358
Tube- ASTM A213, A269, A249, A511, A554 / ASME
SA213, SA269, SA249, SA511, SA554
Pipe- ANSI/ASME B36.19M, ANSI/ASME B36.10M
6.00 mm OD up to 914.4 mm OD, Sizes up to 24” NB available Ex-stock, OD Size Steel Tubes available Ex-stock
0.3mm – 50 mm, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS
Seamless Pipe - 1 / 2" NB - 16" NB,
Welded Pipe - 1 / 2" NB - 24" NB,
EFW Pipe - 6" NB - 24" NB
Seamless Tube - 1 / 2" NB - 16" NB,
Welded Tube - 1 / 2" NB - 24" NB
Manufacturing - Seamless / Welded / ERW / EFW
/Fabricated / CDW / 100% X Ray Welded
End Types - Plain Ends, Bevelled Ends, Grooved
Mechanical Joints or Grooved Ends, Treaded One/Both Ends
Round, Square, Hollow, Rectangular, Instrumentation, High Pressure, Cold Rolled Coiled, Electropolish, Heat exchanger, Sanitary etc.
Length - Single Random, Double Random & Required
Length
Outside Finish - 2B, No.4, No.1, No.8 Mirror
Finish, Finish as per customer Requirements
STANDARD | UNS | WNR. | EN | JIS | GOST |
SS 347 | S34700 | 1.4550 | X6CrNiNb18-10 | SUS 347 | 08Ch18N12B |
SS 347H | S34709 | 1.4961 | X6CrNiNb18-12 | SUS 347H | - |
Element | 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 |
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 |
Oil & Gas Industrires
Chemical Industries
Construction Industries
Offshore Pipelines & Pipe Works
Petrochemical Industry
Shipbuilding Industries
Hydraulic Applications
Piping Systems
Refining Industry
Food Processing Industry
Pulp & Paper Industry
Power Plant Industry
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