SA-178-A

Electric-resistance welded carbon steel and carbon manganese steel boiler tubes.

Chemical Properties:

Carbon: 0.06-0.18 Silicon: n/a
Manganese: 0.27-0.63 Nickel: n/a
Potassium: 0.035 Chromium: n/a
Sulfur: 0.035 Molybdenum: n/a

Mechanical Properties:

Tensile Strength:

ksi: 47

MPa: 324

Yield:

ksi: 26

MPa: 179

Elongation in 2in. or 50mm, min. %: 35

Max. Hardness Rockwell B: 77

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