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304H Stainless Steel Pipe & Tube

Stainless steel 304H is available in from inventory in seamless pipe. We can provide 304H welded pipe and tube up-to 120″ diameter with reduced lead times.

 

General Properties for 304H Pipe and Tube

Alloy 304H, like 304/L is a austenitic stainless steel with a minimum of 18% chromium and 8% nickel with a maximum of 0.08% carbon.

Applications

Alloy 304H is often used in pipe or tube form in these applications or market segments

  • Petroleum refineries
  • Chemical Processing
  • Boilers
  • Heat exchangers
  • Condensers
  • Pipelines
  • Cooling towers
  • Steam exhausts
  • Power Generation

Standards – Alloy 304H

ASTM/ASME:  UNS S30409

EURONORM: FeMi35Cr20Cu4Mo2

DIN: 2.4660

Chemical Properties:

% Cr Ni C Si Mn P S N
304H min: 18.0
max:20.0
min: 8.0
max: 10.5
min: 0.04
max:0.10
0.75
max
2.0
max
0.45
max
0.03
max
0.10
max

Mechanical Properties:

Grade Tensile Strength
ksi (min.)
Yield Strength 0.2%
Offset ksi (min.)
Elongation -
% in
50 mm (min.)
Hardness
(Brinell) MAX
Hardness
(Rockwell B) MAX
304H 75 30 40 201 92

Physical Properties:

Denstiy
lbm/in3
Coefficient of
Thermal Expansion (min/in)-°F
Thermal Conductivity BTU/hr-ft-°F Specific Heat BTU/lbm -°F Modules of Elasticity (annealed)2-psi
at 68 °F at 68 – 212°F at 68 – 1600°F at 212°F at 932°F at 32 – 212°F in tension (E)
0.285 9.2 11.0 9.4 12.4 0.12 29 x 106

Call us at 1-800-222-6144 for more information