API 6A CRA (UNS NO7725)

GENERAL SCOPE:

Alloy 725 is highly resistant to corrosion and is age hardenable for extremely high strength. It is used in a broad range of severe corrosive environments.

CHEMICAL COMPOSITION:

COMMONLY STOCKED STRENGTH LEVELS:

A hardness level of 43 HRC max. is allowed in NACE MR0175, 44 HRC max is allowed when elemental sulfur is not present.

API 6A CRA

GENERAL SCOPE:

925 is a nickel-based superalloy primarily used in wellhead and downhole applications, such as packers, hangers, and valves, designed for corrosive environments. Its excellent corrosion resistance and strength make it ideal for use in harsh oilfield conditions.

CHEMICAL COMPOSITION:

COMMONLY STOCKED STRENGTH LEVELS:

110,000 psi yield minimum - limited to a Rockwell C-38 maximum for compliance with NACE MR-01-75/ISO 15156 (for use in hydrogen sulfide environments).

API 6A CRA

GENERAL SCOPE:

Alloy 945 / 945X is a high-performance, age-hardenable alloy designed to offer a superior combination of high strength and excellent corrosion resistance. It provides protection against chloride stress-corrosion cracking and offers outstanding resistance to general corrosion from reducing chemicals, as well as enhanced resistance to pitting, crevice corrosion, and oxidizing environments. This makes it ideal for demanding applications in harsh, corrosive conditions.

CHEMICAL COMPOSITION:

UNS N09945

UNS N09945X, N09946

COMMONLY STOCKED STRENGTH LEVELS:

Condition: Solution Annealed and Age Hardened

API 6A CRA

GENERAL SCOPE:

Alloy 945 / 945X is a high-performance, age-hardenable alloy designed to offer a superior combination of high strength and excellent corrosion resistance. It provides protection against chloride stress-corrosion cracking and offers outstanding resistance to general corrosion from reducing chemicals, as well as enhanced resistance to pitting, crevice corrosion, and oxidizing environments. This makes it ideal for demanding applications in harsh, corrosive conditions.

CHEMICAL COMPOSITION:

UNS N09945

UNS N09945X, N09946

COMMONLY STOCKED STRENGTH LEVELS:

Condition: Solution Annealed and Age Hardened

J55: API 5CT

GENERAL SCOPE:

API 5CT grades are commonly used in casing, production tubing, coupling stock, pup joints, and various down hole accessories.

CHEMICAL COMPOSITION:

MECHANICAL PROPERTIES:

K55: API 5CT

GENERAL SCOPE:

API 5CT grades are commonly used in casing, production tubing, coupling stock, pup joints, and various down hole accessories.

CHEMICAL COMPOSITION:

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API 5CT Grade

GENERAL SCOPE:

API 5CT grades are commonly used in casing, production tubing, coupling stock, pup joints, and various down hole accessories.

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L80: API 5CT

GENERAL SCOPE:

API 5CT grades are commonly used in casing, production tubing, coupling stock, pup joints, and various down hole accessories.

CHEMICAL COMPOSITION:

MECHANICAL PROPERTIES:

T95: API 5CT

GENERAL SCOPE:

API 5CT grades are commonly used in casing, production tubing, coupling stock, pup joints, and various down hole accessories.

CHEMICAL COMPOSITION:

MECHANICAL PROPERTIES:

T95: API 5CT

GENERAL SCOPE:

API 5CT grades are commonly used in casing, production tubing, coupling stock, pup joints, and various down hole accessories.

CHEMICAL COMPOSITION:

MECHANICAL PROPERTIES:

P 110: API 5CT

GENERAL SCOPE:

API 5CT grades are commonly used in casing, production tubing, coupling stock, pup joints, and various down hole accessories.

CHEMICAL COMPOSITION:

MECHANICAL PROPERTIES:

Q125: API 5CT

GENERAL SCOPE:

API 5CT grades are commonly used in casing, production tubing, coupling stock, pup joints, and various down hole accessories.

CHEMICAL COMPOSITION:

MECHANICAL PROPERTIES:

UNS S17400 : ASTM A564 GRADE 630

GENERAL SCOPE:

17-4 PH is a precipitation-hardening martensitic stainless steel that contains copper. In its solution-treated and double-aged condition, it has become the preferred alloy for stems and shafts, and is widely used in valve internals. It offers high strength, with good properties up to 315°C (600°F), and excellent corrosion resistance, comparable to 304 austenitic stainless steel in many environments, making it a highly versatile alloy.

NACE MR0175 imposes limitations on hardness and restricts the alloy's age-hardening treatments to two specific cycles. It only permits solution treatment followed by double aging to either the H1150M condition (760°C / 1400°F followed by 620°C / 1150°F) or the DH1150 condition (620°C / 1150°F for both stages).

CHEMICAL COMPOSITION:

COMMONLY STOCKED STRENGTH LEVELS:

MARTENSITIC

GENERAL SCOPE:

This is a martensitic stainless steel used in the hardened and tempered condition, typically available in tubular form, either as mechanical tube or casing tube. It is manufactured according to ASTM A519 standards for mechanical tube supply.

When bill of material requirements align with available stock sizes, significant cost savings can be achieved in both raw material supply and manufacturing, compared to bar product form.

This steel is widely used in completion equipment, in both bar form and for structural and pressure-containing components, especially in standard and CO₂ environments. However, factors such as pH, chlorides, temperature, and the presence of H₂S may limit its use in other environments.

The grade is NACE MR0175 approved, supplied to a hardness of 22 HRC, making it suitable for packers and other sub-surface equipment.

CHEMICAL COMPOSITION:

COMMONLY STOCKED STRENGTH LEVELS:

Condition: Hardened and Double Tempered

UNS S41425 : S41426 : S41427

GENERAL SCOPE:

The "Super 13 Cr" family of martensitic stainless steels offers enhanced mechanical properties and greater corrosion resistance compared to standard 13 Cr or 420 Mod grades. The 95 KSI strength level is approved for NACE MR0175 applications under the current standard. Additionally, the low carbon content improves weldability compared to standard 13 Cr grades.

The 110 KSI strength level is also widely used, although some specific end-user approvals may be required for both strength levels.

This stainless steel is available in bar and tube form and is commonly used in completion equipment. Its primary application is in environments containing CO₂, chlorides, and low concentrations of H₂S.

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COMMONLY STOCKED STRENGTH LEVELS: