Alloy E 4340 is a widely used deep-hardening constructional steel. Due to E-4340's high alloy content it obtains a uniformed hardness by heat treatment. The high fatigue strength makes E4340 ideal for highly stress parts as it maintains it's strength and hardness at elevated temperatures.
4340 Alloy Steel Available Now at NeoNickel4340 Alloy Steel is an iron-based alloy containing nickel, chromium and molybdenum. The relatively high carbon content provides this alloy with superior strength in applications where severe service conditions exist. 4340 Alloy Steel has high strength, superior toughness and good ductility. In addition, the alloy is immune to embrittlement.
4340 Annealed HOT ROLLED & COLD FINISHED. PACIFIC 4340 is available in two conditions:heat treated (quenched and tempered) to high strength or annealed for ease of machining and subsequent heat treatment. It is a nickel-chromium-molybdenum medium carbon alloy steel with deep hardenability. It can be through hardened in large sections.
4340M / 300M VAR Cr-Ni-Mo-V Aircraft Quality Alloy Steel
DescriptionApplicationsSpecificationsAvailable FormsEssentially 300M is a modified AISI 4340 steel with silicon, vanadium and slightly more carbon and molybdenum. 300M has a very good combination of strength at 19302100 MPa (280-305 ksi), toughness, fatigue strength and good ductility. It is a through hardening alloy.4340/EN24/817M40 Steel Pipe Mechanical Tubing Alloy 4340/EN24/817M40 Steel Pipe Mechanical Tubing Seamless Alloy Steel Tube. Application. 4340/EN24/817M40 Steel Pipe, mainly used in mechanical parts, automobile parts, fire protection, medical fields, industry equipment, etc.
AISI 4340 Alloy Steel (UNS G43400) - AZoM
Topics CoveredIntroductionMachinabilityFormingWeldingCold WorkingTemperingApplicationsIntroduction Chemical Composition Physical Properties Mechanical Properties Thermal Properties Other Designations Fabrication and Heat Treatment Machinability Forming Welding Heat Treatment Forging Cold Working Annealing Tempering Hardening Applications11703 E4340 4340 ALLOY Metals Castle Metals SiteAlloy 4340 plate is another general purpose grade of steel used for industrial and machining applications. The inclusion of Nickel in Alloy 4340 helps simplify heat treatment. In addition, the Nickel in Alloy 4340 increases hardenability of the steel. An additional grade of Alloy 4340 is Alloy E-4340.
AISI 4340 Normalized - Nickel Chromium Molybdenum Steel - Matmatch See the chemical composition and physical properties of AISI 4340 Normalized, find alternative materials, and connect with suppliers.
AISI 4340 Steel, oil quenched 800°C (1470°F), 540°C (1000 AISI 4340 has a favorable response to heat treatment (usually oil quenching followed by tempering) and exhibits a good combination of ductility and strength when treated thusly. Uses include piston pins, bearings, ordnance, gears, dies, and pressure vessels.
Alloy Steel AISI 4340 Fasteners Manufacturer & Exporter Annealing for Alloy Steel 4340 Stud Bolts is carried out between 1850 Degree F / 2050 Degree F (1010 Degree C / 1120 Degree C) followed by a water quench, when a hardness will be obtained. Where condensation of sulfur-bearing gases occurs, these AS 4340 Fasteners are much more resistant than other types of steels.
AISI 4340 is stocked in the heat treated and stress-relieved condition at approximately 150,000 psi (1034 N/mm2) and in the annealed condition at HB 235 max. Typical Applications:High strength machine parts, heavy-duty shafting, high tensile bolts and studs, gears, axle shafts, crankshafts, boring bars and down-hole drilling components
Order 1" Alloy Steel Round Bar 4340-Normalized Cold Finish Alloy Steel Round Bar 4340 Normalized Cold Finish has high strength, toughness, wear resistance, and fatigue strength. It can be machined in all states other than hardened and it is easily welded. Additionally, 4340 can be cold worked easily in the annealed state.
SAE AISI 4340 Steel Properties, Heat Treatment, Equivalent Mar 19, 2020 · AISI 4340 steel has good weldability. It can be easily gas or arc welded, but electrodes of the same composition should be used. Since 4340 alloy steel is air hardened, the welded parts should be either annealed or normalized and tempered shortly after welding.
Steel 4340 is usually normalized at 1500 °F (815 °C) +/- 50 °F (10 °C). Furthermore, the standard hardening temperature is 1500-1550 °F (815-845 °C), followed by tempering for stress relief. After tempering, flame or induction hardening will produce material with Rc SAE-AISI 4340 (SNCM439, G43400) Ni-Cr-Mo Steel SAE-AISI 4340 (SNCM439, G43400) Ni-Cr-Mo Steel SAE-AISI 4340 steel is an alloy steel formulated for primary forming into wrought products. 4340 is the designation in both the SAE and AISI systems for this material. G43400 is the UNS number. It can have a moderately high tensile strength among SAE-AISI