API 5L X65 is a high-strength, low-alloy pipeline steel commonly used in oil and gas pipelines. This steel is particularly suitable for extreme conditions that require high pressure and high temperature, and also has strong seawater corrosion resistance to ensure long-term stable transportation of pipelines. The yield strength and tensile strength of API 5L X65 are not less than 450MPa and 535MPa respectively, and it also has good welding performance.
Grade X65-PSL1 High Yield Carbon Steel Pipes Chemical Composition(%)
| Composition | C | Mn | P | S | Cr | Ni | Cu | Mo | B | More | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| seamless steel line pipe | Min | - | - | - | - | - | - | - | - | - | Nb+V+Ti≤0.15 |
| Max | 0.28 | 1.4 | 0.03 | 0.03 | 0.5 | 0.5 | 0.5 | 0.15 | 0.001 |
| Composition | C | Mn | P | S | Cr | Ni | Cu | Mo | B | More | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Carbon Steel Welded Pipe | Min | - | - | - | - | - | - | - | - | - | Nb+V+Ti≤0.15 |
| Max | 0.26 | 1.45 | 0.03 | 0.03 | 0.5 | 0.5 | 0.5 | 0.15 | 0.001 |
Grade X65-PSL1 High Yield Line Pipes Mechanical Properties
| Type | Tensile Strength σb Mpa |
Yield point σs Mpa |
Elongation or elongation after fracture δ % |
|---|---|---|---|
| seamless carbon steel line pipe,LSAW Welded Line Pipe | ≥535 | ≥450 | * |
Grade X65Q-PSL2 Carbon Steel Line Pipe Chemical Composition(%)
| Composition | C * | Si * | Mn * | P | S | Cr * | Ni * | Cu * | Mo * | B | More | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Seamless Line Pipe, Welded Line Pipe | Min | - | - | - | - | - | - | - | - | - | - | Nb+V+Ti≤0.15* |
| Max | 0.18 | 0.45 | 1.7 | 0.025 | 0.015 | 0.5 | 0.5 | 0.5 | 0.5 | 0.001 |
Grade X65Q-PSL2 Carbon Steel High Temperature Seamless Pipes Mechanical Properties
| Type | Test temperature | tensile strength σb Mpa |
Yield point σs Mpa |
Elongation or elongation after fracture δ % |
Impact energy absorption KV2 J |
|---|---|---|---|---|---|
| Seamless Line Pipe, Welded Line Pipe | 535~760 | 450~600 | * | ||
| OD≤30 | 0°C | ≥27 | |||
| OD>30~48 | 0°C | ≥40 | |||
| OD>48~84 | 0°C | ≥54 |
Grade X65M-PSL2 High Yield Line Pipes Chemical Composition(%)
| Composition | C * | Si * | Mn * | P | S | Cr * | Ni * | Cu * | Mo * | B | More | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ERW carbon steel pipe | Min | - | - | - | - | - | - | - | - | - | - | Nb+V+Ti≤0.15* |
| Max | 0.18 | 0.45 | 1.6 | 0.025 | 0.015 | 0.5 | 0.5 | 0.5 | 0.5 | 0.001 |
Grade X65M-PSL2 Spiral Welded Line Pipes Mechanical Properties
| Type | Test temperature | tensile strength σb Mpa |
Yield point σs Mpa |
Elongation or elongation after fracture δ % |
Impact energy absorption KV2 J |
|---|---|---|---|---|---|
| Spiral Welded Line Pipes | 535~760 | 450~600 | * | ||
| OD≤30 | 0°C | ≥27 | |||
| OD>30~48 | 0°C | ≥40 | |||
| OD>48~84 | 0°C | ≥54 |
API 5L X65 Carbon Steel High Temperature Seamless Pipes
