Alloy 400 Tubing, Stainless Steel, Instrumentation Tubing, Stainless Steel Instrumentation, Stainless Steel Hydraulic Tubing, Hydraulic Tubing, Welded Stainless Steel Tubing

304/L & 316/L Stainless Steel Tubing

Due to its excellent general corrosion resistance, high strength-to-weight ratio and remarkable ductility, stainless steel has become the predominant material choice for hydraulic and instrumentation tubing.

The two grades of stainless steel tubing that are most commonplace are dual certified 304/L and 316/L. These commodity grades can be found in use in a multitude of applications within countless industries worldwide.

Whether it be seamless or welded, domestic or import, or 20 foot sticks or long length coils, stainless steel tubing is our core competency. It’s not only in our name, it’s at the heart of what we do.

Product Specifications
ASME SA213 / ASTM A213 (SEAMLESS),
ASME SA249/ASTM A249 (WELDED), ASTM A269

304/L UNS S30400 UNS S30403 CHEMICAL COMPOSITION % (MAX.)
Cr
Chromium
Ni
Nickel
Mn
Manganese
Si
Silicon
P
Phosphorous
C
Carbon
S
Sulfur
Mo
Molybdenum
18.0-20.0 8.0-12.0 2.00 0.75 0.045 0.030 0.030 0.0

316/L UNS S31600 UNS S31603 CHEMICAL COMPOSITION % (MAX.)
Cr
Chromium
Ni
Nickel
Mo
Molybdenum
Mn
Manganese
Si
Silicon
P
Phosphorous
C
Carbon
S
Sulfur
16.0-18.0 10.0-14.0 2.0-3.0 2.00 1.00 0.045 0.035 0.030
DIMENSIONAL TOLERANCES
OUTSIDE DIAMETER (OD) OD TOLERANCE WALL TOLERANCE
Up to .5” +/- .005” +/- 15%
.5” - 1.5” excl +/- .005” +/- 10%
1.5” - 3.5”, excl +/- .010” +/- 10%
3.5” - 5.5”, excl +/- .015” +/- 10%
 
SIZE RANGE
Outside Diameter (OD) Wall Thickness
1/16” - 4” .010 “ - .375”
FABRICATION
304/L and 316/L stainless steel has excellent fabrication properties. Its malleability allows it to be easily formed for flaring, bending and coiling. Good machinability and the low sulfur content promotes excellent weldability in applications requiring it.

 304/L & 316/L Stainless Steel Tubing
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