A Story of Steel
Carbon Steel
It's been at least 4,000 years since people discovered that adding a controlled amount of carbon to iron conjured up a new kind of metal — one that was strong, held a sharp edge and could bend without breaking. At Continental, we live and breathe specialized metallurgical chemistries. But at the end of the day, we think good old steel is still pretty exciting.
🔨 Carbon Steel
Carbon Steel Grades
By definition, all steel is a mixture of iron and carbon. Steel to which no alloy elements have been added is called 'carbon steel.' It's been at least 4,000 years since people discovered that adding a controlled amount of carbon to iron created a new kind of metal — one that was strong, held a sharp edge and could bend without breaking. At Continental, we live and breathe specialized metallurgical chemistries. But at the end of the day, we think good old steel is still pretty exciting.
Key Characteristics
- Fundamental iron-carbon combination
- No specialized alloy additions
- Cost-effective material
- Good weldability
- Adequate strength for many applications
Applications
- General mechanical tubing
- OCTG applications (J55, K55, N80)
- Structural components
- Standard fasteners
- Commodity piping
1018
Mechanical Bar & Tube
General purpose pipe manufactured to ASTM Specification 519.
Composition:
| Element | Min % | Max % |
|---|---|---|
| C | 0.15 | 0.2 |
| Mn | 0.6 | 0.9 |
| P | - | 0.04 |
| S | - | 0.05 |
No mechanical properties available for this yield condition.
1026
Mechanical Bar & Tube
General purpose pipe manufactured to ASTM Specification 519.
Composition:
| Element | Min % | Max % |
|---|---|---|
| C | 0.22 | 0.28 |
| Mn | 0.6 | 0.9 |
| P | - | 0.04 |
| S | - | 0.05 |
No mechanical properties available for this yield condition.
8620
Mechanical Bar & Tube
General purpose pipe manufactured to ASTM Specification 519.
Composition:
| Element | Min % | Max % |
|---|---|---|
| C | 0.18 | 0.23 |
| Mn | 0.7 | 0.9 |
| Mo | 0.15 | 0.25 |
| Cr | 0.4 | 0.6 |
| Ni | - | 0.7 |
| P | - | 0.025 |
| S | - | 0.025 |
| Si | - | 0.35 |
No mechanical properties available for this yield condition.
K55
Mechanical Bar & Tube OCTG & Linepipe
General purpose pipe manufactured to API specification 5CT. Similar to J55 but the minimum tensile strength is higher
Composition:
| Element | Min % | Max % |
|---|---|---|
| P | - | 0.03 |
| S | - | 0.03 |
No mechanical properties available for this yield condition.
H40
OCTG & Linepipe
General purpose pipe manufactured to API specification 5CT.
Composition:
| Element | Min % | Max % |
|---|---|---|
| P | - | 0.03 |
| S | - | 0.03 |
| Mechanical Properties | Metric | Imperial |
|---|---|---|
| Tensile Strength | 414 MPa min | 60,000 psi min |
| Yield Strength | 276 MPa min 552 MPa max | 40,000 psi min 80,000 psi max |
| Total Elongation Under Load | 0.500 % | - |
J55
OCTG & Linepipe
General purpose manufactured to API specification 5CT. Similar to K55, except that the minimum tensile strength is lower.
Composition:
| Element | Min % | Max % |
|---|---|---|
| P | - | 0.03 |
| S | - | 0.03 |
| Mechanical Properties | Metric | Imperial |
|---|---|---|
| Tensile Strength | 517 MPa min | 75,000 psi min |
| Yield Strength | 379 MPa min 552 MPa max | 55,000 psi min 80,000 psi max |
| Total Elongation Under Load | 0.500 % | - |
N80
OCTG & Linepipe
General purpose pipe manufactured to API specification 5CT. Available in both standard Quench and Tempered API N80 and lower cost Normalized API N80 (walls less than 0.5"). Inspection, testing and dimensions are in accordance with API 5CT for grade N80. Charpy V-notch impact test absorbed energy results meet API SR16 and are lower in Normalized N80 than Quench and Tempered N80.
Composition:
| Element | Min % | Max % |
|---|---|---|
| P | - | 0.03 |
| S | - | 0.03 |
| Mechanical Properties | Metric | Imperial |
|---|---|---|
| Tensile Strength | 689 MPa min | 100,000 psi min |
| Yield Strength | 552 MPa min 758 MPa max | 80,000 psi min 110,000 psi max |
| Total Elongation Under Load | 0.500 % | - |
L80
OCTG & Linepipe
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 (hydrogen sulfide) environments.
Composition:
| Element | Min % | Max % |
|---|---|---|
| C | - | 0.43 |
| Mn | - | 1.9 |
| Ni | - | 0.25 |
| Cu | - | 0.35 |
| P | - | 0.03 |
| S | - | 0.03 |
| Si | - | 0.45 |
| Mechanical Properties | Metric | Imperial |
|---|---|---|
| Tensile Strength | 655 MPa min | 95,000 psi min |
| Yield Strength | 552 MPa min 655 MPa max | 80,000 psi min 95,000 psi max |
| Total Elongation Under Load | 0.500 % | - |
| Hardness | 23 Max HRC 241 Max HBW | - - |
9Cr-L80
OCTG & Linepipe
Manufactured to API specification 5CT. This is a controlled yield strength material with a hardness testing requirement. Used in wells with carbon dioxide environments.
Composition:
| Element | Min % | Max % |
|---|---|---|
| C | - | 0.15 |
| Mn | 0.3 | 0.6 |
| Mo | 0.9 | 1.1 |
| Cr | 8 | 10 |
| Ni | - | 0.5 |
| Cu | - | 0.25 |
| P | - | 0.02 |
| S | - | 0.01 |
| Si | - | 1 |
| Mechanical Properties | Metric | Imperial |
|---|---|---|
| Tensile Strength | 655 MPa min | 95,000 psi min |
| Yield Strength | 552 MPa min 655 MPa max | 80,000 psi min 95,000 psi max |
| Total Elongation Under Load | 0.500 % | - |
| Hardness | 23 Max HRC 241 Max HBW | - - |
13Cr-L80
OCTG & Linepipe
Manufactured to API specification 5CT. This is a controlled yield strength material with a hardness testing requirement. Used in wells with carbon dioxide environments.
Composition:
| Element | Min % | Max % |
|---|---|---|
| C | 0.15 | 0.22 |
| Mn | 0.25 | 1 |
| Cr | 12 | 14 |
| Ni | - | 0.5 |
| Cu | - | 0.25 |
| P | - | 0.02 |
| S | - | 0.01 |
| Si | - | 1 |
| Mechanical Properties | Metric | Imperial |
|---|---|---|
| Tensile Strength | 655 MPa min | 95,000 psi min |
| Yield Strength | 552 MPa min 655 MPa max | 80,000 psi min 95,000 psi max |
| Total Elongation Under Load | 0.500 % | - |
| Hardness | 23 Max HRC 241 Max HBW | - - |
C90
OCTG & Linepipe
API controlled yield strength grade generally for use in sour condensate wells. Extensive hardness testing is required along with SSCC testing per NACE Standard TM-0177-Method A. The minimum threshold stress required is 80 percent of specified minimum yield strength.
Composition:
| Element | Min % | Max % |
|---|---|---|
| C | - | 0.35 |
| Mn | - | 1.2 |
| Mo | 0.25 | 0.85 |
| Cr | - | 1.5 |
| Ni | - | 0.99 |
| P | - | 0.02 |
| S | - | 0.01 |
| Mechanical Properties | Metric | Imperial |
|---|---|---|
| Tensile Strength | 689 MPa min | 100,000 psi min |
| Yield Strength | 621 MPa min 724 MPa max | 90,000 psi min 105,000 psi max |
| Total Elongation Under Load | 0.500 % | - |
| Hardness | 25 Max HRC 255 Max HBW | - - |
T95
OCTG & Linepipe
API controlled yield strength grade. Generally for use in sour condensate wells. Extensive hardness testing is required along with SSCC testing per NACE Standard TM-0177-Method A. The minimum threshold stress required is 80 perfect of specified minimum yield strength.
Composition:
| Element | Min % | Max % |
|---|---|---|
| C | - | 0.35 |
| Mn | - | 1.2 |
| Mo | 0.25 | 0.85 |
| Cr | 0.4 | 1.5 |
| Ni | - | 0.99 |
| P | - | 0.02 |
| S | - | 0.01 |
| Mechanical Properties | Metric | Imperial |
|---|---|---|
| Tensile Strength | 724 MPa min | 105,000 psi min |
| Yield Strength | 655 MPa min 758 MPa max | 95,000 psi min 110,000 psi max |
| Total Elongation Under Load | 0.500 % | - |
| Hardness | 25 Max HRC 255 Max HBW | - - |
C110
OCTG & Linepipe
API controlled yield strength grade generally for use in deeper sour condensate wells. Extensive hardness testing is required along with SSCC testing per NACE Standard TM-0177-Method A. The minimum threshold stress required is 85 percent of specified minimum yield strength.
Composition:
| Element | Min % | Max % |
|---|---|---|
| C | - | 0.35 |
| Mn | - | 1.2 |
| Mo | 0.25 | 1 |
| Cr | 0.4 | 1.5 |
| Ni | - | 0.99 |
| P | - | 0.02 |
| S | - | 0.005 |
| Mechanical Properties | Metric | Imperial |
|---|---|---|
| Tensile Strength | 793 MPa min | 115,000 psi min |
| Yield Strength | 758 MPa min 827 MPa max | 110,000 psi min 120,000 psi max |
| Total Elongation Under Load | 0.700 % | - |
| Hardness | 30 Max HRC 286 Max HBW | - - |
P110
OCTG & Linepipe
API grade for general use in deep wells. This grade is not generally considered suitable for sour condensate wells.
Composition:
| Element | Min % | Max % |
|---|---|---|
| P | - | 0.03 |
| S | - | 0.03 |
| Mechanical Properties | Metric | Imperial |
|---|---|---|
| Tensile Strength | 862 MPa min | 125,000 psi min |
| Yield Strength | 758 MPa min 965 MPa max | 110,000 psi min 140,000 psi max |
| Total Elongation Under Load | 0.600 % | - |
Q125
OCTG & Linepipe
API grade for general use in deep wells. This grade is not generally considered suitable for sour condensate wells.
Composition:
| Element | Min % | Max % |
|---|---|---|
| C | - | 0.35 |
| Mn | - | 1.35 |
| Mo | - | 0.85 |
| Cr | - | 1.5 |
| Ni | - | 0.99 |
| P | - | 0.02 |
| S | - | 0.01 |
| Mechanical Properties | Metric | Imperial |
|---|---|---|
| Tensile Strength | 931 MPa min | 135,000 psi min |
| Yield Strength | 862 MPa min 1,034 MPa max | 125,000 psi min 150,000 psi max |
| Total Elongation Under Load | 0.650 % | - |
Ready to Transform Your Operations?
Partner with us to streamline your supply chain, reduce costs, and accelerate growth. Get a customized quote tailored to your specific needs.
50+
Years Experience
15
Global Facilities
ISO 9001
Certified
24/7
Support Available