Seamless Metric Tubing

Unlike welded tubing, the homogeneous nature of seamless stainless steel tubing makes it stronger, superior to corrosion resistance, and higher pressure resistant. These precision manufactured tubes are cold finished to tight dimensional tolerances to meet exacting engineering requirements. Key markets for seamless metric tubing include:

  • Alternative fuels
  • Chemical and petrochemical industries
  • Marine applications
  • Mechanical and plant construction
  • Oil and gas applications
  • Power generation
We are the largest supplier of stainless steel metric tubing in the US. Our inventories consist of both domestic and imported metric tubes to meet demanding material specifications while satisfying customer project requirements.

Product Specifications

ASTM A269, ASTM A213 / ASME SA213 (Seamless)
ASTM A269, ASTM A249 / ASME SA249 (Welded)

Domestic tube is bright annealed.
Imported tube is solution annealed and O.D. polished to a 320-grit finish.

Size Range

Outside Diameter (OD)

Wall Thickness

3mm–42mm

0.5mm–4mm

Chemical Requirements

T316/L (UNS S31600/UNS S31603)
Composition %

UNS

C

Carbon

Mn
Manganese

P
Phosphorous

S
Sulfur

Si
Silicon

Cr
Chromium

Ni

Nickel

Mo

Molybdenum

S31600

0.08 max

2.00 max

0.045 max

0.030 max

1.00 max

16.0–18.0

10.0–14.0

2.00–3.00

S31603

0.030 max

2.00 max

0.045 max

0.030 max

1.00 max

16.0–18.0

10.0–18.0

2.00–3.00

Dimensional Tolerances

OD

OD Tolerance

Wall Tolerance

≤ 38mm (1.5″) excl

± .005″ (.13mm)

± 10%

> 38mm–89mm (1.5″–3.5″) excl

± .010″ (.25mm)

± 10%

Mechanical Properties

Yield Strength:

30 ksi min

Tensile Strength:

75 ksi min

Elongation (min 2″):

35%

Hardness (Rockwell B Scale):

90 HRB max

Get in touch.

Phone

(830) 383-4333

email

richardsaenz@sustainautomationvalves.com

Do you need some help?

PLEASE CALL or EMAIL.