4100 Pipe and Tube Specifications

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%