Project Description
API L80 13Cr Corrosion Resistance Steel Pipe For Oilfield
13 Chrome L80, UNS S42000, is a quenched and tempered martensitic stainless steel used for corrosion resistance in sweet (CO2) and mildly sour (H2S) environments up to 300°F. Commonly used as downhole tubulars, components, packers, and other subsurface equipment, it is included in API 5CT as Group 2, Grade L80, Type 13Cr. Its controlled yield strength and hardness comply with NACE MR0175.
This grade is best suited for mildly corrosive conditions as pH, chlorides, temperature, and H2S may limit its use. NACE MR0175/ISO15156 Table A.19 provides a recommended limit of 1.5 psi partial pressure H2S with pH ≥3.5.
ALSO KNOWN AS
- API L80 13CR
• API 5CT 13Cr
• 13Cr L80
• L80-13Cr
• 13 Cr
• 13CR
• 420
• 420 Mod
• 13%Cr
• 13% CR
SUITABLE APPLICATIONS
Mildly corrosive environments containing CO2 , and H2S ≤ 1.5 psi
PRODUCT AVAILABILITY
FORMS: Seamless Pipe, Tubing
OD: MIN OD: 2-7/8” MAX OD: 10-3/4”
Standard & Non-Standard Sizes Available
RANGE: R1, R2, R3
CHEMICAL COMPOSITION
| C | Cr | Ni | Fe | Mn | Si | Cu | P | S |
| 0.15 – 0.22 | 12 -14 | ≤ 0.5 | Balance | 0.25 – 1 | ≤ 1 | ≤ 0.25 | ≤ 0.02 | ≤ 0.01 |
MANUFACTURING PROCESS
| PROCESS | DESCRIPTION |
| Steel Making | Made by electric furnace (EF) or basic oxygen furnace (BOF) |
| Pipe Making | Manufactured by traditional hot tube manufacturing processes |
| Heat Treatment | Quenched and tempered |
API 5CT Group 2 Grade L80 Type 13Cr
| Grade | Yield Strength ksi | Tensile Strength ksi | Elongation % | Hardness HRC | NACE MR0175/ISO 15156 H2S Sour Service Limits | ||
| min | max | min | min | max | |||
| 80 | 80 | 95 | 95 | Function of specimen size | 23 | Table A.19 | H2S ≤ 1.5 psi, pH ≥ 3.5 |
TYPICAL PHYSICAL PROPERTIES
| 70°F | 250°F | ||
| Density | lbs/in3 | 0.28 | 0.28 |
| Thermal Expansion | X10-6/°F | 5.9 | |
| Elastic Modulus | psi x 106 | 29.6 | 29.3 |
| Poisson Ratio | 0.3 | 0.3 | |
| Yield Strength De-Rating | % | 100 | 91 |
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