HCM2S is a high strength ferritic boiler tube alloy with strength at temperature more than 50% that of the commonly used 2.25 Cr alloy. The alloy, with very low carbon, needs no preheat nor post-weld heat treatment. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as creep. It also includes information on high temperature performance and corrosion resistance as well as heat treating and joining. Filing Code: SA-480. Producer or source: Sumitomo Metal USA Corporation.

In the late 1990s boilers were designed for higher temperatures and pressures than those in the past and required steels with high-temperature strength that is greater than that of conventional 18-8 austenitic stainless steels. A heat-resisting steel (0.1C-18Cr-10Ni-3Cu-Ti-Nb) was developed with a creep rupture strength at 600-700 deg C (1110-1290 deg F) that is 30% higher than that of AISI TP347H. This steel tube, called TEMPALOY AA-1, is expected to be a candidate material for ultra-supercritical boilers. This datasheet provides information on composition and tensile properties as well as creep. It also includes information on high temperature performance and corrosion resistance as well as forming and joining. Filing Code: SS-934. Producer or source: Tenaris NKKTubes.

Sumitomo XA704 is an advanced alloy for ultra-supercritical boilers and other high temperature applications. This datasheet provides information on composition, and elasticity as well as fracture toughness and creep. It also includes information on corrosion resistance as well as forming and joining. Filing Code: SS-1175. Producer or source: Sumitomo Metal USA Corporation.

Sandvik 3R12/4L7 is a composite tube consisting of type 304L stainless steel for corrosion resistance on the outside diameter and having carbon steel (A210 Gr. A1) as the inside component for both water wetted service and the design load. The major application is tubing to handle the corrosive conditions in black liquor recovery boilers. This datasheet provides information on composition, physical properties, microstructure as well as fatigue. It also includes information on forming, heat treating, and joining. Filing Code: SA-482. Producer or source: Sandvik.

Sandvik Sanicro 67 is a composite tube for various boiler applications. The outer tube layer is of Sanicro 67, an austenitic nickel-base alloy with excellent corrosion and stress-corrosion cracking resistance. This datasheet provides information on composition and physical properties. It also includes information on forming and joining. Filing Code: Ni-673. Producer or source: Sandvik Steel Company and Sandvik AB.

Vallourec and Mannesmann Tubes alloy T24 is a development in power-plant boiler-tubing alloys. It was developed to resist increasing operating parameters of pressure and temperature, particularly in ultra-super-critical boilers. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness and creep. It also includes information on corrosion resistance as well as forming and heat treating. Filing Code: SA-508. Producer or source: Vallourec & Mannesmann.

DMV 617 Modified is a superheater boiler tubing grade with strength and corrosion resistance for ultra supercritical boilers. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as fracture toughness and creep. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, and joining. Filing Code: Ni-692. Producer or source: Salzgitter Mannesmann Stainless Tubes USA Inc..

INCOCLAD625/Steel is a bimetallic clad tube with alloy 625 (UNS N06625) on the outside and with a metallurgical bond holding the alloys together. This datasheet provides information on composition. It also includes information on corrosion resistance as well as forming and joining. Filing Code: Ni-597. Producer or source: Special Metals Corporation.

NF616, nominally 9Cr-0.5 Mo-1.8W-Cb(Nb)-V, is an alloy in the 9 Cr system developed to overcome the disadvantages of high expansion with austenitic alloys for boiler operations, while maintaining high strength. NF 616 is expected to find use in boiler tubing and main steam piping. This datasheet provides information on composition, hardness, and tensile properties as well as fracture toughness and creep. It also includes information on high temperature performance and corrosion resistance as well as heat treating and joining. Filing Code: SA-467. Producer or source: Nippon Steel Corporation.

Alloy 740H (see Alloy Digest Ni-613, September 2003) is a precipitation-hardenable Ni-Cr-Co alloy containing molybdenum and niobium. The primary application for the alloy is boiler tubes for advanced ultra-supercritical steam boilers. This data sheet covers a modification of that alloy to correct two problems, i.e., the eta-phase formation with a loss of impact strength between 750–800 deg C (1382–1472 deg F) and to render the alloy more weldable. This datasheet provides information on composition, physical properties, elasticity, and tensile properties. It also includes information on high temperature performance as well as forming, heat treating, machining, and joining. Filing Code: Ni-716. Producer or source: PCC Energy Group.

Vallourec and Mannesmann (V and M) Tubes T23 is a power plant boiler tubing alloy developed to resist increasing operating parameters of pressure and temperature. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness and creep. It also includes information on forming, heat treating, and joining. Filing Code: SA-507. Producer or source: Vallourec & Mannesmann.

DMV 347 HFG is produced as seamless tubing suitable as a replacement for old reheater and superheater boiler tubes. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as creep. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, and joining. Filing Code: SS-1022. Producer or source: Mannesmann DMV Stainless USA Inc.

Sulzer Metco 8500 is a nickel-chromium alloy wire for electric arc spraying. The nominal composition is Ni-45Cr, and applications are in the protection of power-plant boiler tubes. This datasheet provides information on composition, physical properties, and microstructure. It also includes information on machining, joining, and surface treatment. Filing Code: Ni-608. Producer or source: Sulzer Metco.

Alloy 740 is a precipitation-hardenable Ni-Cr-Co alloy containing molybdenum and niobium. The primary application for the alloy is boiler tubes for the European advanced electricity generation program (Thermie). This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as creep. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Ni-613. Producer or source: Special Metals Corporation.

Sandvik Sanicro 28 composite tube is used in services as superheater material for waste-derived fuel plants. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on corrosion resistance as well as forming and joining. Filing Code: SS-831. Producer or source: Sandvik Steel Company. See also Alloy Digest SS-442, March 1984.

Sandvik Sanicro 63 was developed specifically for use as outer cladding of composite tubes in service as superheater materials for waste-derived fuel plants. It is a modification of UNS N06625. Typical inner components of the composite tubes are Sandvik 4L7 and Sandvik HT8. This datasheet provides information on composition, physical properties, and tensile properties. It also includes information on forming and joining. Filing Code: Ni-572. Producer or source: Sandvik.

Sandvik Sanicro 38/4L7 is a composite tube consisting of Sanicro 38, a corrosion-resistant nickel-base alloy on the outside diameter, and carbon steel (A210 GrA-1) for water-wetted service on the inside. The design is placed entirely on the inside tube; however, there is a contribution from both. This datasheet provides information on composition and physical properties. It also includes information on forming, heat treating, and joining. Filing Code: SA-483. Producer or source: Sandvik.

INCOCLAD 671/800HT is produced by co-extruding a duplex billet with Incoloy alloy 800HT as the substrate and Inconel alloy 671 as the corrosion resistant cladding. This datasheet provides information on composition and physical properties. It also includes information on corrosion resistance as well as forming. Filing Code: Ni-544. Producer or source: Inco Alloys International.

SANDVIK 310/T22 is a composite tube consisting of Type 310 stainless steel for corrosion resistance on the outside diameter and having T22 (21/4 Cr-1Mo) to A213 on the inside diameter to act as the superheater tube and design load carrier. This datasheet provides information on composition. It also includes information on forming and joining. Filing Code: SA-477. Producer or source: Sandvik.

Brush Wellman Q-Max tube is a high-strength age-hardening copper alloy with excellent biological resistance for use in waters as condenser tubing. This datasheet provides information on composition, physical properties, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: CU-739. Producer or source: Brush Wellman Inc.