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Tubular Products
Product Descriptions
| Seamless Oil Country Tubular Goods |
|
| API H40 |
| Minimum Yield Strength: |
40,000 psi |
| Maximum Yield Strength: |
80,000 psi |
| Minimum Tensile Strength: |
60,000 psi |
|
Notes: General purpose pipe manufactured to API specification 5CT. |
| API J55 |
| Minimum Yield Strength: |
55,000 psi |
| Maximum Yield Strength: |
80,000 psi |
| Minimum Tensile Strength: |
75,000 psi |
| Hardness Requirement: |
None |
|
Notes: General purpose pipe
manufactured to API specification 5CT. Similar to K55 except the minimum tensile
strength is lower. Usually, this grade is used in tubing applications. |
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| API K55 |
| Minimum Yield Strength: |
55,000 psi |
| Maximum Yield Strength: |
80,000 psi |
| Minimum Tensile Strength: |
95,000 psi |
| Hardness Requirement: |
None |
| Notes: General purpose pipe manufactured to API
specification 5CT. Usually, this grade is used in casing applications |
| USS FS80 |
| Minimum Yield Strength: |
75,000 psi |
| Maximum Yield Strength: |
None |
| Minimum Tensile Strength: |
95,000 psi |
| Hardness Requirement: |
23 HRC maximum |
| Notes: A quenched and tempered proprietary
U. S. Steel casing grade for high collapse applications. Inspections are
the same as for API K55 with hardness testing to the requirements of API
L80. Collapse testing is required for each heat and/or lot. |
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| USS C75 |
| Minimum Yield Strength: |
75,000 psi |
| Maximum Yield Strength: |
90,000 psi |
| Minimum Tensile Strength: |
95,000 psi |
| Hardness Requirement: |
22 HRC maximum |
| Notes: A proprietary U. S. Steel tubing and
casing grade established when API removed C75 from the 5CT specification.
Inspection and processing are in accordance with API grade L80. |
| 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. |
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| API N80 (or N80 Q&T) |
| Minimum Yield Strength: |
80,000 psi |
| Maximum Yield Strength: |
110,000 psi |
| Minimum Tensile Strength: |
100,000 psi |
| Hardness Requirement: |
None |
| Notes: General purpose pipe manufactured to
API specification 5CT. |
| API Normalized N80 |
| Minimum Yield Strength: |
80,000 psi |
| Maximum Yield Strength: |
110,000 psi |
| Minimum Tensile Strength: |
100,000 psi |
| Hardness Requirement: |
None |
| Notes: A lower-cost alternative to standard
Quench and Tempered API N80 (walls less than 0.500 inch). 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 than Quench and Tempered N80. |
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| GT-80S |
| Minimum Yield Strength: |
80,000 psi |
| Maximum Yield Strength: |
95,000 psi |
| Minimum Tensile Strength: |
95,000 psi |
| Hardness Requirement: |
23 HRC maximum |
| Notes: A proprietary controlled yield strength
U. S. Steel grade generally for use in more severe sour service wells.
Inspection, testing and dimensions are in accordance with API L80. NACE
(SSC) - Method A qualification testing is required to meet a threshold
stress of 90 percent of specified minimum yield strength. API C90
couplings are used on threaded and coupled products. |
| USS FSS-95 |
| Minimum Yield Strength: |
85,000 psi |
| Maximum Yield Strength: |
95,000 psi |
| Minimum Tensile Strength: |
95,000 psi |
| Hardness Requirement: |
23 HRC maximum |
| Notes: A proprietary controlled yield strength
U. S. Steel grade for high-collapse applications. Frequency of testing, inspection
requirements and dimensional tolerances of API L80, and with the exception
of collapse, performance properties are based on formulae in API Bulletin 5C3.
Collapse testing is required for each heat and/or lot. |
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| API C90 |
| Minimum Yield Strength: |
90,000 psi |
| Maximum Yield Strength: |
105,000 psi |
| Minimum Tensile Strength: |
100,000 psi |
| Hardness Requirement: |
25.4 HRC maximum |
| Notes: 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. |
| USS C90 |
| Minimum Yield Strength: |
90,000 psi |
| Maximum Yield Strength: |
105,000 psi |
| Minimum Tensile Strength: |
100,000 psi |
| Hardness Requirement: |
24.0 HRC maximum average (26 HRC individual) |
Notes: Proprietary restricted yield strength
U. S. Steel grade for use in sour condensate wells. Resistance to sulfide stress
cracking is achieved by precise controls of chemical composition, heat
treatment and hardness levels. Inspection requirements and dimensional
tolerances are in accordance with API 5CT for grade C90. Performance
properties are the same as for API grade C90.
Hardness testing is conducted as required for API C90, with the exception of
frequency (Casing and Non-Upset Tubing - First, last and every tenth joint
in between; Upset Tubing - First, last and every 25th joint in between).
To reduce order lead time, sulphide stress corrosion cracking (SSCC) testing
is not required for every order. If required by the customer, SSCC testing
can be performed to U. S. Steel Standard Mill Practice P-1004 (NACE Standard
TM-0177-Method A) with a guaranteed minimum threshold stress of 85 percent
specified minimum yield strength.
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| USS SC90 |
| Minimum Yield Strength: |
90,000 psi |
| Maximum Yield Strength: |
105,000 psi |
| Minimum Tensile Strength: |
100,000 psi |
| Hardness Requirement: |
24.0 HRC
maximum average (26 HRC individual) |
| Notes: Proprietary restricted yield
strength U. S. Steel grade for use in sour condensate wells. This product is
the same as U. S. Steel C90 except impact testing is required and hardness testing
is done on each end of each joint for casing and non-upset tubing.
|
| USS-95 |
| Minimum Yield Strength: |
110,000 psi |
| Maximum Yield Strength: |
140,000 psi |
| Minimum Tensile Strength: |
125,000 psi |
| Hardness Requirement: |
None |
| Notes: Proprietary U. S. Steel grade for high-collapse
applications. Inspection, testing and dimensional tolerances are as required
for API 5CT Group 3 (P110) material. With the exception of collapse, performance
properties are based on formulae in API Bulletin 5C3 (the 110,000 psi minimum
yield strength is an internal control requirement, and guaranteed performance
properties are based on 95,000 psi minimum yield strength). Collapse testing
is required for each heat and/or lot.
|
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| USS C95 |
| Minimum Yield Strength: |
95,000 psi |
| Maximum Yield Strength: |
110,000 psi |
| Minimum Tensile Strength: |
105,000 psi |
| Hardness Requirement: |
25.0 HRC maximum |
Notes: Proprietary restricted yield strength U. S. Steel
grade for use in sour condensate wells. Resistance to sulfide stress cracking is
achieved by precise controls of chemical composition, heat treatment and
hardness levels. Inspection requirements and dimensional tolerances are in
accordance with API 5CT for grade T95. Performance properties are the same as
for API grade T95.
Hardness testing is conducted as required for API T95, with the exception of
frequency (Casing and Non-Upset Tubing - First, last and every tenth joint
in between; Upset Tubing - First, last and every 25th joint in between). To
reduce order lead time, sulphide stress corrosion cracking (SSCC) testing is
not required for every order. If required by the customer, SSCC testing can be
performed to U. S. Steel Standard Mill Practice P-1004 (NACE Standard
TM-0177-Method A) with a guaranteed minimum threshold stress of 85 percent
specified minimum yield strength.
|
| API C955 |
| Minimum Yield Strength: |
95,000 psi |
| Maximum Yield Strength: |
110,000 psi |
| Minimum Tensile Strength: |
105,000 psi |
| Hardness Requirement: |
None |
| Notes: API grade with the same strength range as
T95 and U. S. Steel C95, but without a hardness requirement. This grade is not
generally considered for use in sour condensate wells since no hardness
restrictions or testing is required and no SSCC testing is required.
|
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| API T95 |
| Minimum Yield Strength: |
95,000 psi |
| Maximum Yield Strength: |
110,000 psi |
| Minimum Tensile Strength: |
105,000 psi |
| Hardness Requirement: |
25.4 HRC maximum |
| Notes: API controlled yield strength grade, the
same as API C95 and U. S. Steel C95. 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.
|
| API P110 |
| Minimum Yield Strength: |
110,000 psi |
| Maximum Yield Strength: |
140,000 psi |
| Minimum Tensile Strength: |
125,000 psi |
| Hardness Requirement: |
None |
| Notes: API grade for general use in deep wells.
This grade is not generally considered suitable for sour condensate wells.
|
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| USS C100 |
| Minimum Yield Strength: |
100,000 psi |
| Maximum Yield Strength: |
115,000 psi |
| Minimum Tensile Strength: |
110,000 psi |
| Hardness Requirement: |
28 HRC maximum |
| Notes: A proprietary controlled yield strength U. S. Steel
grade generally for use in deep sour service wells. Inspection, testing
and dimensions are in accordance with API 5CT C90 and T95. NACE
(SSC)-Method A
testing is required for each heat to meet a threshold stress of
85 percent of specified minimum yield strength.
|
| USS C110 |
| Minimum Yield Strength: |
110,000 psi |
| Maximum Yield Strength: |
125,000 psi |
| Minimum Tensile Strength: |
120,000 psi |
| Hardness Requirement: |
30 HRC maximum |
| Notes: A proprietary controlled yield strength U. S. Steel
grade generally for use in deeper sour condensate wells. Inspection,
testing and
dimensions are in accordance with API T95. SSCC testing is required for each heat
to meet a threshold stress of 85 percent of specified minimum yield strength.
|
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| API Q125 |
| Minimum Yield Strength: |
125,000 psi |
| Maximum Yield Strength: |
150,000 psi |
| Minimum Tensile Strength: |
135,000 psi |
| Hardness Requirement: |
No limit specified - Hardness variation requirement |
| Notes: API grade for deep well service, not
generally for use in sour condensate wells. Quadrant hardness testing is
required without any specified limits other than the variation between
readings. Impact testing is required for each heat and/or lot. NDT
inspection is required with two methods of inspection (typically EMI and
UT are performed on this product).
|
| USS-125 |
| Minimum Yield Strength: |
125,000 psi |
| Maximum Yield Strength: |
150,000 psi |
| Minimum Tensile Strength: |
135,000 psi |
| Hardness Requirement: |
None |
| Notes: Proprietary U. S. Steel grade for use in deep
well applications. This grade is a lower-cost alternative to API Q125 because
two NDT inspections and hardness/impact testing are not required. Dimension
and inspection requirements are in accordance with API 5CT Group 3 material.
|
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| USS-140 |
| Minimum Yield Strength: |
140,000 psi |
| Maximum Yield Strength: |
170,000 psi |
| Minimum Tensile Strength: |
150,000 psi |
| Hardness Requirement: |
None |
| Notes: Proprietary U. S. Steel grade for use in deep
well applications. Dimensions and inspection are in accordance with API 5CT
Group 3 requirements.
|
| V150 |
| Minimum Yield Strength: |
150,000 psi |
| Maximum Yield Strength: |
180,000 psi |
| Minimum Tensile Strength: |
160,000 psi |
| Hardness Requirement: |
None |
| Notes: Proprietary U. S. Steel grade for use in deep
well applications. Dimensions and inspection are in accordance with API 5CT
Group 3 requirements.
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