4100 Pipe and Tube Specifications

Chemistry

413041404142
Carbon max. %0.28 – 0.330.38 – 0.430.40 – 0.45
Manganese %0.40 – 0.600.75 – 1.000.75 – 1.00
Phosphorous, max. %0.040.040.04
Sulfur, max. %0.040.040.04
Silicon, min.%0.15 – 0.350.15 – 0.350.15 – 0.35
Chrome, max. %0.80 – 1.100.80 – 1.100.80 – 1.10
Molybdenum, max. %0.15 – 0.250.15 – 0.250.15 – 0.25

Mechanical Properties

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

MechanicalsHeat ConditionHardnessYieldTensile
A519-4130 / 4140Quenched and Tempered28-32 RCNot TestedNot Tested
API 5CT L80 in 4519-4100Quenched and Tempered18-22 RC80 – 95 ksi95 ksi min
API 5CT P110 in 4519-4100Quenched and Tempered30-36 RC110 – 140 ksi125 ksi min
API 5CT Q125 in 4519-4100Quenched and Tempered32-36 RC125 – 150 ksi135 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

ConditionGradeMedium
AnnealedA519-4130 CDAir
Annealed or NormalizedA519-4130 /A519-4140Air
Quenched and TemperedA519-4130Water
Quenched and TemperedA519-4140Polymer or Oil
Quenched and TemperedA519-4142Oil

Tolerances

ConditionODWall
Annealed or NormalizedASTM A519ASTM A519
Quenched and Tempered+/-1%+/-12.5%