EQUIVALENT
| (SAE 4130/4140) (AISI 4130/4140) (ASTM A519 4130/4140) (4130/4140) EQUIVALENT |
| GB | JIS | ASTM | DIN | BS | iso |
20mn2-50mn2 | smn420-smn443 | 1320-1345 | 20mn5-50mn7 | 150m19-160m36 | 22mn6-42mn6 |
15cr-50cr | scr415-445 | 5115-5150 | – | 527a17 | 20cr4-41cr4 |
15crmo | scm415 | – | 15crmo5 | 1653 | – |
20crmo | scm420 | 4120 |
|
|
|
35crmo | scm435 | 4137 | 34crmo1 | – | – |
30crmo | scm420 | 4130 | 25crmo4 | 25crmo4 |
|
30crmoa | scm430 | 4130 | 34crmo4 | 34crmo4 |
|
42crmo | scm440 | 4140 | 42crmo4 | 708m40 |
|
– | – | f11-91 | – | – | – |
38crmoal | sacm645 | – | – | – | 41cralmo74 |
50crv | – | 6150 | 51crv4 | – | – |
15-20crmn | smnc420 | 5115-5120 | 16mncr5 |
| 16mncr5 |
gcr15 | – | sae52100 | 100cr6 | – | – |
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.