Alloys

Our materials include, but are not limited to, Aluminum, Titanium, 300 Series and PH Grades of Stainless Steel, VAR Alloy steels, Magnesium, Nickel Cobalt Alloys, Duplex and Super Duplex Stainless Steels, Tungsten, and Plastics. Available in all forms: sheet, plate, bar, forged block, extrusions, castings, wire, and coil.

15-5 PH

This is a martensitic, precipitation hardening, chromium-nickel-copper stainless steel. The alloy combines good strength, transverse toughness and ductility, hardness capability and corrosion resistance compared with 304 stainless. It may be used in the solution treated condition or heat treated to obtain a wide variety of properties.

15-7 PH

This alloy is a semi-austenitic precipitation hardening stainless steel. It combines moderate corrosion resistance with high strength and hardness at operating temperatures up to 900 F.

300M

LESCALLOY 300M VAC-ARC steel is a modified 4340 steel with added silicon allowing for use of a higher tempering temperature. The steel has a high hardenability and strength with good ductility and toughness in heavy sections. It is used primarily in the 270/300 ksi (1862/2068) tensile strength range for aircraft landing gears, flap tracks and other structural applications. Vacuum arc remelting (VAR) is used to provide optimum cleanliness and preferred ingot structure.

4130

AISI 4130 is a low alloy steel containing molybdenum and chromium as strengthening agents. The carbon content is nominally 0.30% and with this relatively low carbon content the alloy is excellent from the fusion weldability standpoint. The alloy can be hardened by heat treatment.

4330V

AISI 4330 is a heat treatable steel alloy (for high strength) containing chromium, nickel and molybdenum. Carbon content is in the 0.30% range and in the heat treated condition the alloy has good toughness and fatigue strength as well as good strength. The comparatively low carbon content of the alloy makes it particularly useful in applications involving shock loading or stress concentration.

4340

AISI 4340 is a heat treatable, low alloy steel containing nickel, chromium and molybdenum. It is known for its toughness and capability of developing high strength in the heat treated condition while retaining good fatigue strength.

4340 AIR MELT

4340 MOD

4340 PLATE

4340 VAC MELT

LESCALLOY 4340 VAC-ARC steel is a low alloy, nickel-chromium-molybdenum steel capable of being heat treated to high strength levels. The alloy has a good combination of ductility, toughness and strength along with high hardenability. LESCALLOY 4340 VAC-ARC steel is produced by the consumable electrode vacuum arc remelting process to provide optimum cleanliness and preferred ingot structure.

AERMET 100

AerMet® 100 is an ultra-high strength type of martenistic (a very hard form of steel crystalline structure) steel alloy. Is was developed in response to a need for a stronger and tougher material with superior fracture toughness and ductility. The alloy possesses a minimum tensile strength of 280 ksi (1930 MPa) and a minimum fracture toughness of 100 Ksi√ in. AerMet is weldable requiring no preheating. Since it is not a corrosion resistant alloy, it must be sealed if used in a moist environment. The exceptional properties of hardness, FTT, tensile strength and ductility make this alloy a candidate for application such as landing gear, armor, fasteners, actuators, ordnance, jet engine shafts, drive shafts and structural tubing. AerMet 100 may be considered for use up to about 800° F (427° C).

CUSTOM 465

Alloy 465 is a premium melted martensitic, age hardenable material which is less sensitive to process parameters than other high strength, precipitation hardening stainless steels. The material is capable of 260 ksi UTS in the H900 condition. The alloy was designed to ave excellent notch tensile strength and fracture toughness in this condition. For complete details, contact Carpenter Technology in Reading, PA or visit their website at http://www.cartech.com.

D6AC

This alloy is a semi-austenitic precipitation hardening stainless steel. It combines moderate corrosion resistance with high strength and hardness at operating temperatures up to 900 F.

HAST X

A wrought nickel base alloy with excellent high temperature strength and oxidation resistance. It is very resistant to stress-corrosion cracking. All of the product forms are excellent in terms of forming and welding.

HASTELLOY

Hastelloy is the registered trademark name of Haynes International, Inc. The trademark is applied as the prefix name of a range of twenty two different highly corrosion-resistant metal alloys, loosely grouped by the metallurgical industry under the material term “superalloys” or “high-performance alloys”. The predominant alloying ingredient is typically the transition metal nickel. Other alloying ingredients are added to nickel in each of the subcategories of this trademark designation and include varying percentages of the elements molybdenum, chromium, cobalt, iron, copper, manganese, titanium, zirconium, aluminum, carbon, and tungsten. The primary function of the Hastelloy super alloys is that of effective survival under high-temperature, high-stress service in a moderately to severely corrosive, and/or erosion-prone environment where more common and less expensive iron-based alloys would fail, including the pressure vessels of some nuclear reactors, chemical reactors, distillation equipment, and pipes and valves in chemical industry. Although a super alloy, Hastelloy does experience degradation due to fabricating and handling. Electropolishing or passivation of Hastelloy can improve corrosion resistance.

INVAR

Controlled expansion alloys are iron-nickel alloys or iron-nickel-cobalt alloys used for applications in which thermal size change of the metal must be considered in the design. Composition and crystal structure help to determine each alloy's thermal expansion behavior. The alloy expansion rate is most commonly stated in terms of an average coefficient of thermal expansion.

Inconel

Inconel is a family of austenitic nickel-chromium-based superalloys. The name is a trademark of Special Metals Corporation. Inconel alloys are oxidation and corrosion resistant materials well suited for service in extreme environments subjected to pressure and heat. When heated, Inconel forms a thick, stable, passivating oxide layer protecting the surface from further attack. Inconel retains strength over a wide temperature range, attractive for high temperature applications where aluminum and steel would succumb to creep as a result of thermally-induced crystal vacancies (see Arrhenius equation). Inconel's high temperature strength is developed by solid solution strengthening or precipitation strengthening, depending on the alloy. In age hardening or precipitation strengthening varieties, small amounts of niobium combine with nickel to form the intermetallic compound Ni3Nb or gamma prime (γ'). Gamma prime forms small cubic crystals that inhibit slip and creep effectively at elevated temperatures. The formation of gamma prime crystals increases over time, especially after three hours of a heat exposure of 850 C, and continues to grow after 72 hours of exposure.

Inconel 625

This nickel-chromium-molybdenum wrought alloy is an excellent general purpose material for elevated temperature use in high strength, oxidation problem applications. It also has excellent corrosion resistance to many acids and resists intergranular attack and stress-corrosion cracking.

Inconel 718

This is a high-strength, high-temperature resistant and corrosion resistant nickel-chromium alloy. It is suitable for use at cryogenic temperatures and also for use in air up to 1300 F. The alloy is readily worked and can be age-hardened.

KOVAR

Kovar alloy is a vacuum melted, iron-nickel-cobalt, low expansion alloy whose chemical composition is controlled within narrow limits to assure precise uniform thermal expansion properties. Extensive quality controls are employed in the manufacture of this alloy to ensure uniform physical and mechanical properties for ease in deep drawing, stamping and machining. Kovar alloy has been used for making hermetic seals with the harder Pyrex glasses and ceramic materials. This alloy has found wide application in power tubes, microwave tubes, transistors and diodes. In intergrated circuits, it has been used for the flat pack and the dual-in-line package.

Maraging 250

Maraging 250 is an age hardenable iron-nickel steel alloy melted as VIM + VAR with ultra high strength and toughness. This alloy is easily machinable in the annealed condition prior to final heat treatment. This grade has improved fracture toughness from Maraging 300 but slightly less strength. The unique properties makes it suitable for many critical aerospace applications.

Maraging 300

Maraging 300 is an age hardenable iron-nickel steel alloy melted as VIM + VAR with ultra high strength and toughness. This alloy is easily machinable in the annealed condition prior to final heat treatment. This grade has increased strength from Maraging 250 but slightly less toughness. The unique properties makes it suitable for many critical aerospace applications.

Maraging 350

Maraging is a 18% nickel, cobalt strengthened steel (C-type) with excellent properties, workability and heat treatment characteristics. Maraging is double vacuum melted by VIM (Vacuum Induction Melt) followed by VAR (Vacuum Arc Remelt). Maraging material is supplied in the annealed and descaled condition. The alloy is very tough, relatively soft (RC 30/35), readily machined or formed. Maraging provides a high value for critical parts in aerospace, structural, component and tooling applications.

Monel

Monel is a trademark of Special Metals Corporation for a series of nickel alloys, primarily composed of nickel (up to 67%) and copper, with some iron and other trace elements. Monel was created by David H. Browne, chief metallurgist for International Nickel Co. Monel alloy 400 is binary alloy of the same proportions of nickel and copper as is found naturally in the nickel ore from the Sudbury (Ontario) mines.Compared to steel, Monel is very difficult to machine as it work-hardens very quickly. It needs to be turned and worked at slow speeds and low feed rates. It is resistant to corrosion and acids, and some alloys can withstand a fire in pure oxygen. It is commonly used in applications with highly corrosive conditions. Small additions of aluminium and titanium form an alloy (K-500) with the same corrosion resistance but with much greater strength due to gamma prime formation on aging. Monel is typically much more expensive than stainless steel.

PH13-8MO

13-8 MO is a precipitation, age hardenable stainless steel. It's principal features are high transverse toughness, good resistance to general and stress corrosion cracking, and high strength that is developed by a single low temperature heat treatment.

TITANIUM 10-2-3

This is a near-beta alloy designed primarily for airframe forging applications. It is best used in applications requiring high strength (in the 180,000 tensile range). 10-2-3 combines the best hot-die forgeability of any commercial titanium with excellent high strength toughness and deep hardenabilty. Beta Transus (F+/- 25) 1460.

TITANIUM 6-6-2

This alpha-beta alloy can be heat treated to higher strengths and heavier section sizes than alloy 6AL-4V. It combines excellent strength, corrosion resistance and moderately good fabricability. Beta Transus (F +/- 25) 1735.

TITANIUM 6AL-4V

This alpha-beta grade is the most widely available and heavily used of all the titanium grades. The alloy is heat treatable and combines excellent strength and corrosion resistance with weld and fabricability. Beta Transus (F +/- 25) 1830.

TITANIUM 6AL-4V ELI

ELI stands for "extra low interstitial". Essentially, this is a controlled chemistry version of the standard 6-4 product with lower oxygen content. To qualify as a true ELI product, it should be produced as such at the mill. Some suppliers, however, have been known to check the chemical test report and "re-certify" the product themselves. Be sure to ask your supplier if the material you are buying has been produced and certified properly.