4100 Pipe and Tube Specifications

The 4100 series uses Chrome and Molybdenum to increase the strength and wear characteristics of carbon steel. American Piping Products has a long history with Chrome/Moly steels for the power industry, so the 4100 series is a natural addition to our current inventories. We specialize in seamless products and carry pipe sizes in 4130 as well as tubing sizes in 4130 and 4140.

CHEMISTRY
4130 4140 4142
Carbon max. % 0.28 – 0.33 0.38 – 0.43 0.40 – 0.45
Manganese % 0.40 – 0.60 0.75 – 1.00 0.75 – 1.00
Phosphorous, max. % 0.04 0.04 0.04
Sulfur, max. % 0.04 0.04 0.04
Silicon, min.% 0.15 – 0.35 0.15 – 0.35 0.15 – 0.35
Chrome, max. % 0.80 – 1.10 0.80 – 1.10 0.80 – 1.10
Molybdenum, max. % 0.15 – 0.25 0.15 – 0.25 0.15 – 0.25
MECHANICAL PROPERTIES

The minimum wall thickness at any point shall not be more than 12.5% under the nominal wall thickness specified.

Mechanicals Heat Condition Hardness Yield Tensile
A519-4130 / 4140 Quenched and Tempered 28-32 RC Not Tested Not Tested
API 5CT L80 in 4519-4100 Quenched and Tempered 18-22 RC 80 – 95 ksi 95 ksi min
API 5CT P110 in 4519-4100 Quenched and Tempered 30-36 RC 110 – 140 ksi 125 ksi min
API 5CT Q125 in 4519-4100 Quenched and Tempered 32-36 RC 125 – 150 ksi 135 ksi min
CHARPY V NOTCH TESTING

Charpy V Notch Testing (CVN) is not required, but much of American Piping Products’ inventory is tested at the mill.

HEAT CONDITIONS FOR 4100 ALLOYS
Condition Grade Medium
Annealed A519-4130 CD Air
Annealed or Normalized A519-4130 /A519-4140 Air
Quenched and Tempered A519-4130 Water
Quenched and Tempered A519-4140 Polymer or Oil
Quenched and Tempered A519-4142 Oil
TOLERANCES
Condition OD Wall
Annealed or Normalized ASTM A519 ASTM A519
Quenched and Tempered +/-1% +/-12.5%

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