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Seamless STAINLESS
steel
tubing

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SEAMLESS TUBING YOU CAN TRUST WITH DELIVERIES YOU CAN DEPEND ON

With a combined 75 years of experience, Plymouth Tube is considered to be one of the premier Seamless Stainless Tubing suppliers world wide. Plymouth has the capability to manufacture the seamless stainless steel tubing from 3 different facilities across the United States and exports the high quality material around the world.

Each tube is custom made for the customer’s specific application, and we offer a wide variety of specifications and grades. From high purity to heat exchanger to instrumentation and aerospace, we have your solution.

ALLOYS

Austenitic:  304/L/N, 316/L/N, 317/L, 321, 347

Duplex/Lean Duplex: 2101, 2205, 2507

Ni Alloy: 600, 625, 800, 825

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

  • Pressure Tubing & Heat Exchanger Tubing:  A/SA 213, A/SA 268, A/SA 269, A/SA 270, A/SA 632, B/SB 163
  • Instrumentation & General Service: A/SA 213, A/SA 269
  • Nuclear Instrumentation Tubing: A/SA 213 ASME Section III- Class 1 & 2
  • Mechanical Tubing: A/SA 511
  • Aircraft Specifications: AMS 5564, AMS 5565, AMS 5567, AMS 5569, AMS 5695, AMS 5557, AMS 5570, AMS 5897, AMS 5896, AMS 5581
  • OD Range: 0.125- 3.000” (3.175 mm – 76.2mm)
  • Wall Range: 0.016” – 0.134” (0.41 mm – 3.40mm)
  • Max Length: 140 ft

Aerospace

Seamless Stainless Steel Aerospace Tubing produced by Plymouth Tube’s Salisbury Mill.

Size Range:

OD: 0.125” – 3.00” (3.175mm – 76.2mm)

Wall: 0.016” – 0.120” (0.406mm – 3.04mm)

Specifications: 

304/L AMS 5564 (AMS-T-6845 noncurrent), AMS 5565 (AMS-T-8506 canceled, supersedes MIL-T-8506), AMS 5567 (supersedes MIL-T-8504), AMS 5569, AMS 5695

321 AMS 5557 (supersedes MIL-T-8808, MIL-T-8606 inactive), AMS 5570, AMS 5897 (MIL-T-8973 canceled) AMS 5896

347 AMS 5557 (supersedes MILT-T-8808, MIL-T-8606 inactive)
AMS 5897 (MIL-T-8973 canceled)

625 AMS 5581

We also offer extruded and cold drawn shapes for the aerospace industry.  Please see our Aerospace page for more information.

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HEAT EXCHANGER

Offering specialty seamless heat exchanger tubing with quick lead times

Size Range:

OD: 0.375” – 3.000” (9.53mm – 76.2mm)

Wall: 0.026” – 0.134” (0.66mm – 3.40mm)

Offering straights and U-bends

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INSTRUMENTATION

Size Range:

OD: 0.125” – 3.000” (3.18mm – 76.2mm)

Wall: 0.016” – 0.120”min wall (0.41mm – 3.05mm min wall)

Grades: 304/L, 316/L

Specifications: A/SA 213, A/SA 269

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GENERAL SERVICE & MECHANICAL

Size Range:

OD: 0.125” – 3.000” (3.18mm – 76.20mm)

Wall: 0.016” AW – 0.148” AW (0.41mm – 3.76mm)

Grades: 304/L, 316/L, 317/L, 321, 347Specifications: A/SA 269, 632, 268, A/SA 511

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NUCLEAR INSTRUMENTATION

Size Range:

OD: 0.125” – 1.000” (3.18mm – 25.40mm)

Wall: 0.016” AW – 0.109” AW (0.41mm -2.77mm)

Grades: 304/L, 316/L, 600

Specifications: ASME Section III- Class 1 & 2, ASTM B and ASME SB 163 and 167

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