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WELDED STAINLESS
steel
tubing

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A COST-EFFECTIVE ALTERNATIVE TO SEAMLESS TUBING

Plymouth Tube has established itself as the premier manufacturer and innovator in the stainless steel tubing area. Serving its customers’ needs since 1924, Plymouth has proven to be the trusted source for a variety of markets. Our welded & drawn tubing offers a cost effective alternative to seamless tubing while providing custom sizes and stringent mechanical and physical properties.

ALLOYS

AUSTENITIC: 304/L/N, 316/L/N, 317/L, 321, 347
FERRITIC/SUPER-FERRITIC: 430, 439
DUPLEX/LEAN DUPLEX: 2101, 2205, 2507
HIGH NICKEL: AL6XN, 600, 625, 800, 825, C-276, C-22
PH GRADES: 17-4, 17-7
SPECIALTY: E-Brite® , Nitronic 30/40, Alloy 20, Invar 36, 718, 21-6-9

Chemical Composition

14
Si
Silicon
Min: - Max: 1.000
6
C
Carbon
Min: - Max: 0.080
15
P
Phosphorus
Min: - Max: 0.045
16
S
Sulfur
Min: - Max: 0.030
13
Al
Aluminum
Min: - Max: -
24
Cr
Chromium
Min: 18.000 Max: 20.000
29
Cu
Copper
Min: - Max: -
25
Mn
Manganese
Min: - Max: 2.000
42
Mo
Molybdenum
Min: - Max: -
28
Ni
Nickel
Min: - Max: 10.500
22
Ti
Titanium
Min: - Max: -
23
V
Vanadium
Min: - Max: -

Mechanical Properties

Tensile Strength 515 MPa min 75,000 psi min
Yield Strength 205 MPa min -
30,000 psi min -
Total Elongation Under Load 30.000 % -
Hardness 22 Max HRC -

Specifications

  • HEAT EXCHANGER TUBING: A/SA 249, A/SA 268, A/SA 269, A/SA 270, A/SA 632, A/SA 789, B/SB 676, B/SB 704
  • FEEDWATER HEATER TUBING: A/SA 688, A/SA 803
  • INSTRUMENTATION & GENERAL SERVICE: A/SA 269
  • MECHANICAL TUBING: A/SA 554
  • AIRCRAFT SPECIFICATIONS: AMS 5565, AMS 5567, AMS 5564, AMS 5566, AMS 5569, AMS 5567, AMS 5567, AMS 5576, AMS 5556, AMS 5575, AMS 5581, PWA 1065, AMS 5561, AMS 5568

Aerospace

Welded and Drawn Stainless Steel Aerospace Tubing produced by Plymouth Tube’s Trent Mill.

SIZE RANGE:
OD: 0.188” – 4.500” (4.78mm – 104.3 mm)
Wall: 0.016” – 0.236” (0.406mm 0 5.994 mm)

WELDED STAINLESS SPECIFICATIONS:
304/L – AMS 5565 (AMS-T-8506 canceled, supersedes MIL-T-8506), AMS 5567 (supersedes MIL-T-8504), AMS 5564, AMS 5566, AMS 5569 (AMS-T-6845 noncurrent, MIL-T-6845D canceled)
321 – AMS 5567 (supersedes MIL-T8508, MIL-T-8606 & AMS-T-8606 inactive), AMS 5576 (MIL-T-6737 canceled)
347 – AMS 5556 (supersedes MIL-T-8808, MIL-T-8606 inactive), AMS 5575 (MIL-T-6737 canceled)
625 – AMS 5581
718 – PWA 1065, TP-718
21-6-9 – AMS 5561, BMS 7-185
17-7PH – AMS 5568

Plymouth Tube also offers Net and Near Shapes for the aerospace industry.

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GENERAL & INDUSTRIAL

Plymouth Tube offers custom tubing for niche applications. From specialty fittings to pump shell casings, we have tubing designed to suit your needs.

SIZE RANGE:
OD: 0.188” – 4.500” (4.78mm – 104.30 mm)
Wall: 0.016” – 0.236” (0.406mm 05.994 mm)

Minimum mill run is typically between 2,500 and 25,000 feet depending on the size, spec, and grade. Contact our sales team for more information.

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POWER GENERATION

For decades, Plymouth Tube has been at the forefront of providing tubing for the power generation industry with reliable products and services. Applications include Feedwater Heater Tubing, Condenser Tubing, Boiler Tubing, BOP Heat Exchangers, and Nuclear Instrumentation Tubing.

SIZE RANGE:
OD: 0.188” – 4.500” (4.78mm – 104.30 mm)
Wall: 0.016” – 0.236” (0.406mm 0 5.994 mm)

WELDED STAINLESS SPECIFICATIONS:
A/SA 688, A/SA 803, A/SA 268, OTS-053, A/SA 249, B/SB 554

Plymouth also offers seamless stainless and carbon and alloy tubing for the power generation industry. Please see our Power Generation page for more information.

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