AR119818A1 - STEEL MATERIAL SUITABLE FOR USE IN SOUR ENVIRONMENTS - Google Patents
STEEL MATERIAL SUITABLE FOR USE IN SOUR ENVIRONMENTSInfo
- Publication number
- AR119818A1 AR119818A1 ARP200102379A ARP200102379A AR119818A1 AR 119818 A1 AR119818 A1 AR 119818A1 AR P200102379 A ARP200102379 A AR P200102379A AR P200102379 A ARP200102379 A AR P200102379A AR 119818 A1 AR119818 A1 AR 119818A1
- Authority
- AR
- Argentina
- Prior art keywords
- steel material
- less
- material suitable
- precipitates
- mpa
- Prior art date
Links
- 229910000831 Steel Inorganic materials 0.000 title abstract 4
- 239000000463 material Substances 0.000 title abstract 4
- 239000010959 steel Substances 0.000 title abstract 4
- 239000002244 precipitate Substances 0.000 abstract 2
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 239000012535 impurity Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 229910052757 nitrogen Inorganic materials 0.000 abstract 1
- 229910052698 phosphorus Inorganic materials 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
Landscapes
- Heat Treatment Of Steel (AREA)
Abstract
Un material de acero con un límite elástico de 862 MPa o más (125 ksi o más), con excelente tenacidad a baja temperatura y con excelente resistencia a la SSC. El material de acero de acuerdo con la presente divulgación tiene una composición química que consiste de, en % en masa, C: mayor de 0.20 hasta 0.35%, Si: 0.05 a 1.00%, Mn: 0.02 a 1.00%, P: 0.025% o menos, S: 0.0100% o menos, Al: 0.005 a 0.100%, Cr: 0.40 a 1.50%, Mo: 0.30 a 1.50%, Ti: 0.002 a 0.050%, B: 0.0001 a 0.0050%, N: 0.0100% o menos y O: 0.0100% o menos, con el balance siendo con Fe e impurezas, y que satisface la Fórmula (1) y la Fórmula (2) descritas en la descripción. El límite elástico es de 862 MPa o más. Una proporción numérica de precipitados con un diámetro circular equivalente dentro de un rango de 20 a 300 nm entre precipitados con un diámetro circular equivalente de 20 nm o más en el material de acero es de 0.85 o más.A steel material with a yield strength of 862 MPa or more (125 ksi or more), with excellent low-temperature toughness, and with excellent SSC resistance. The steel material according to the present disclosure has a chemical composition consisting of, in mass %, C: greater than 0.20 to 0.35%, Si: 0.05 to 1.00%, Mn: 0.02 to 1.00%, P: 0.025% or less, S: 0.0100% or less, Al: 0.005 to 0.100%, Cr: 0.40 to 1.50%, Mo: 0.30 to 1.50%, Ti: 0.002 to 0.050%, B: 0.0001 to 0.0050%, N: 0.0100% or less and O: 0.0100% or less, with the balance being with Fe and impurities, and satisfying Formula (1) and Formula (2) described in the description. The yield strength is 862 MPa or more. A numerical ratio of precipitates with an equivalent circular diameter within a range of 20 to 300 nm among precipitates with an equivalent circular diameter of 20 nm or more in the steel material is 0.85 or more.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019154252 | 2019-08-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AR119818A1 true AR119818A1 (en) | 2022-01-12 |
Family
ID=80782108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ARP200102379A AR119818A1 (en) | 2019-08-27 | 2020-08-24 | STEEL MATERIAL SUITABLE FOR USE IN SOUR ENVIRONMENTS |
Country Status (1)
| Country | Link |
|---|---|
| AR (1) | AR119818A1 (en) |
-
2020
- 2020-08-24 AR ARP200102379A patent/AR119818A1/en active IP Right Grant
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG | Grant, registration |