4130 Normalize & Annealed
4130 normalize & annealed properties
| 4130 (Chromoly) Normalized Alloy Steel | ||
Minimum Properties | Ultimate Tensile Strength, psi | 97,200 |
Yield Strength, psi | 63,100 | |
Elongation | 25.5% | |
Rockwell Hardness | B92 | |
4130 (Chromoly) Annealed Alloy Steel | ||
Minimum Properties | Tensile Strength, psi | 81,200 |
Yield Strength, psi | 52,200 | |
Elongation | 28.2% | |
Rockwell Hardness | B82 | |
Chemistry | Iron (Fe) | 97.3 – 98.22% |
Carbon (C) | 0.28 – 0.33% | |
Chromium (Cr) | 0.8 – 1.1% | |
Manganese (Mn) | 0.4 – 0.6% | |
Molybdenum (Mo) | 0.15 – 0.25% | |
Phosphorus (P) | 0.035% max | |
Sulphur (S) | 0.04% max | |
Silicon (Si) | 0.15 – 0.35% | |
CHEMISTRY DATA :
Carbon | 0.28 – 0.33 |
Chromium | 0.8 – 1.1 |
Manganese | 0.7 – 0.9 |
Molybdenum | 0.15 – 0.25 |
Phosphorus | 0.035 max |
Silicon | 0.15 – 0.35 |
Sulphur | 0.04 max |
The properties requirements of spec L80 are:
API L80
Minimum Yield Strength: 80,000 psi
Maximum Yield Strength: 95,000 psi
Minimum Tensile Strength: 95,000 psi
Hardness Requirement: 23 HRC maximum
Notes: Manufactured to API specification 5CT. This is a controlled yield strength material with a hardness testing requirement. L80 is usually used in wells with sour (H2S) environments.