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Detailed Product Description
ASTM A53 pipe (also referred to as ASME SA53 pipe) is intended for mechanical and pressure applications and is also acceptable for ordinary uses in steam, water, gas, and air lines. It is suitable for welding, and suitable for forming operations involving coiling, bending, and flanging, subject to certain qualifications.
A53 pipe comes in three types and two grades, A53 Type F, which is longitudinally furnace butt welded or continuous welded (Grade A only), A53 Type E, which is longitudinally electric resistance welded (Grades A and B), and A53 Type S, which is seamless pipe, produced by hot working, and possibly cold finishing, the steel (Grades A and B). ASTM A53, Type S is now currently an outdated specification and has been replaced by ASTM A106 specification for seamless carbon steel pipe.
This is a standard set by the standards organization ASTM International, a voluntary standards development organizations that sets technical standards for materials, products, systems, and services.
This specification covers seamless carbon steel pipe for high-temperature service
Sizes (Seamless): 1/2" NB - 60" NB
Sizes (ERW): 1/2" NB - 24" NB
Sizes (SAW): 16" NB - 100" NB
Chemical Requirements
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Type S
(seamless)
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Type E (electric-
resistance welded)
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Type F (furnace-
welded pipe)
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Grade A
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Grade B
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Grade A
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Grade B
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Grade A
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Carbon max. %
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0.25
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0.30
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0.25
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0.30
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0.3
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Manganese %
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0.95
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1.2
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0.95
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1.2
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1.2
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Phosphorous, max. %
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0.05
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0.05
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0.05
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0.05
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0.05
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Sulfur, max. %
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0.045
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0.045
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0.045
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0.045
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0.045
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Copper, max.%
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0.40
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0.40
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0.40
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0.40
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0.4
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Nickel, max. %
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0.40
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0.40
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0.40
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0.40
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0.4
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Chromium, max. %
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0.40
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0.40
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0.40
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0.40
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0.4
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Molybdenum, max. %
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0.15
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0.15
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0.15
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0.15
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0.15
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Vanadium, max. %
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0.08
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0.08
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0.08
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0.08
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0.08
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Permissible Variations in Wall Thickness
The minimum wall thickness at any point shall not be more than 12.5% under the nominal wall thickness specified.
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