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% |