For many decades, Special Quality Alloys Ltd have been the preferred supplier of round bar stock in nickel alloys and high-grade stainless steels for the most demanding of environments.
With a strong focus on the oil & gas industry, our comprehensive understanding of material grades and industry specifications has earned us a reputation of trust and reliability.
Raw material quality and integrity is unconditional and therefore our long-standing relationships with the world’s leading speciality mills ensures continuity in the supply of core material grades.
An integrated company structure complements our commitment to superior service by removing barriers and supporting the requirements of industry with high efficiency. Utilising our heat treatment, testing, and machining capabilities we maintain full control offering true metals management.
Combining our strength in stock, metallurgical excellence and group company support we operate from an elevated position in the global market which has been recognised by the major OEMs.
API6A CRA, UNS NO7718, NACE MR 0175/ISO15156, W2.4668
A versatile nickel chromium alloy, exhibiting high strength and excellent corrosion resistance. Used in a range of demanding environments such as the oil & gas sector and other critical industries.
Typical applications:
Primarily for the gate valve market, we convert our own Alloy 718 ingot inventory into forged flat bar which is fully compliant with API6A CRA and NACE MR0175 requirements. Our specialist teams will maintain extensive stock levels and manufacture to bespoke customer requirements.
Alloy 718 - Tubing/Casing Hangers
Utilising our strategic stock of prequalified large diameter forged bar in Alloy 718 and on-site group machining capabilities, we can supply proof machined tubing/casing hangers to our customers specific requirements. Other material grade options are available.
ASTM B446/B564, UNS NO6625, W2.4856
A nickel chromium alloy, exhibiting excellent corrosion resistance in the annealed condition. Recognised for its superior weldability, it is extensively used in the manufacture of critical parts.
Typical applications:
ASTM B805, UNS NO7725, API6A CRA, NACE MR-0175/ISO15156
A nickel chromium molybdenum niobium alloy, developed to provide the corrosion resistance of Alloy 625, combined with the high strength characteristics of Alloy 718.
Typical applications:
API6A CRA, UNS NO9925, NACE MR 0175/ISO15156
A nickel-iron chromium alloy, exhibiting high strength and excellent corrosion resistance. Used in a range of demanding environments such as the oil & gas sector and other critical industries.
Typical applications:
Primarily for the gate valve market, we convert our own Alloy 925 ingot inventory into forged flat bar which is fully compliant with API6A CRA and NACE MR0175 requirements. Our specialist teams will maintain extensive stock levels and manufacture to bespoke customer requirements.
ASTM A182/A276, UNS S31803, NORSOK M-630 MDS D47, W1.4501
A chemical resistant ferritic-austenitic stainless steel. Sea water corrosion resistance and mechanical properties are greater than standard austenitic stainless steels.
Typical applications:
ASTM A276/A479, UNS S32760, NORSOK M-630 D57, W1.4507
A chemical resistant ferritic-austenitic stainless steel. Sea water corrosion resistance with mechanical properties that are greater than S31803, 25% Cr UNS S32550 or 6% Mo UNS S31254 grades.
Typical applications:
ASTM-A564 Grade 630 H1150D, NACE MR-0175/ISO15156, UNS S17400, W1.4542
A martensitic stainless steel, with additions of Cu & Nb (Cb), which permit age hardening to a range of yield strength and hardness combinations. It allows high strength, corrosion resistance, impact properties and weldability.
Typical applications:
ASTM A276/A565, UNS S41000, NACE MR-0175/ISO15156, W1.4006
A martensitic stainless which is capable of good wear and corrosion resistance.
Typical applications:
UNS S41500, NACE MR-0175/ISO15156, W1.4313
A martensitic stainless with additions of nickel & molybdenum creating a high strength stainless steel with excellent sub-zero impact properties. F6NM also exhibits a high level of corrosion resistance.
Typical applications:
