AISI 4130 steel is a chromium-molybdenum low-alloy high-strength structural steel widely used in the oil and gas field.

AISI 4130 steel usually has two product performance requirements in the quenched and tempered condition: Minimum yield strength of 60K (414Mpa) and 75K (517Mpa).

Generally speaking, the mainstream level commonly used in onshore wellhead and Christmas tree equipment is 60K and 75K, which can meet the requirements, while for onshore oil and gas wells with higher pressure, it is necessary to select materials that can reach 80K(552Mpa) or above.

AISI 4130 STEEL CHEMICAL COMPOSITION

GradeCSiMnPSCrMo
41300.28-0.330.15-0.350.4-0.6≤0.035≤0.040.8-1.10.15-0.25

AISI 4130 75K HEAT TREATMENT PROCESS

  • AISI 4130 Steel Normalizing
SAE 4130 Steel Normalizing Diagram
AISI 4130 Normalizing Heat Treatment Details
Temperature of
In-furnace(℃)
Keeping
Temperature(℃)
Time of Keeping
(hour)
Temperature of
Out-furnace(℃)
Cooling
Medium
Temperature of
Cooling Medium(℃)
1508906-8880Fan ventilate28
  • AISI 4130 Steel Quenching & Tempering(QT)
AISI 4130 Quenching & Tempering Heat Treatment Details
QuenchingTemperature of
In-furnace(℃)
Keeping
Temperature(℃)
Time of Keeping
(hour)
Temperature of
Out-furnace(℃)
Cooling
Medium
Temperature of
Cooling Medium(℃)
1508706-8860Water28
TemperingTemperature of
In-furnace(℃)
Keeping
Temperature(℃)
Time of Keeping
(hour)
Temperature of
Out-furnace(℃)
Cooling
Medium
Temperature of
Cooling Medium(℃)
17068010670Air29
Forgings for wellhead devices and Christmas tree equipment
Forgings for wellhead devices and Christmas tree equipment
Forgings for wellhead devices and Christmas tree equipment
Forgings for wellhead devices and Christmas tree equipment
AISI 4130 Forging Products  For Wellhead Devices & Christmas Tree Equipments