4340 steel properties

Steel 4340 | Tech Steel & Materials

26 Furthermore, Steel 4340 is a wear-resistant material with especially good …

4340 Heat Treated - pmtsco

4340 Heat Treated 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.

4340 Steel | AMS 6484 | SAE 4340

With its high alloy content uniform hardness is developed by heat treatment in relatively heavy sections. High fatigue strength makes E-4340 ideal for highly stressed parts. It maintains its strength and hardness at elevated temperatures. This grade is available as electric furnace vacuum degassed steel to meet the high aircraft quality ...

Alloy Steel 4340 - Wingate Alloys Inc

AISI 4340 is a heat treatable, low alloy steel containing nickel, chromium, and molybdenum. The inclusion of nickel improves hardenability. Regarded industry-wide for its toughness, 4340 supplies high strength in the heat treated condition while still maintaining excellent fatigue strength over time.

Mechanical properties of 4340 steel - Finishing

A. Syed, if you'll take a look at the T-T-T curve you will see that you can you can get martensite, pearlite, or bainite with relative ease with 4340 -- that's one of the beauties of the alloy. I'm certain your presentation will cover the differences between these structures, and how they relate to the mechanical properties. Remember that 4340 is a 0.40% carbon steel, and carbon is the prime ...

AISI E4340 Alloy Steel (UNS G43406)

Thermal Properties. The thermal properties of AISI E4340 alloy steel are given in the following table. Properties. Metric. Imperial. Thermal expansion co-efficient (austenitized 870°C (1600°F), 545°C (1010°F) temper for 2 hrs/@ -70-20°C/-94- 68°F) 11.3 µm/m°C. 6.28 µin/in°F.

4340 steel - Wikipedia

4340 steel is an "ultra-high" strength steel classified a medium-carbon, low-alloy steel. 4340 has high strength, ductility, toughness, creep resistance, and fatigue resistance relative to most other steels. High degrees of hardenability are achievable in the alloy, with HRC hardnesses ranging from 24 to 53 depending on the heat treatment.

4140 vs 4340 - Material engineering general discussion ...

This data is for room temperature. 4340 will be MUCH tougher at lower temperatures. 2% Ni shifts the ductile to brittle transition temperature appreciably-- for low carbon steels it would be a delta of ~ 100 degrees F, for medium carbon steels it is less. Having said all of this, these alloys can be used for many of the same applications.

A Comparison of Fatigue Properties of Austempered Versus ...

monotonic properties depending on the selected heat treatment parameters, e.g., tempering temperature, and the fatigue properties may vary similarly, so it is important to keep at least one parameter constant in any comparison. The present authors showed that austempered 4340 steel had higher yield strength, impact toughness, and hydrogen embrit-

ASM Material Data Sheet

AISI 4340 Steel, normalized, 100 mm (4 in.) round. Subcategory: AISI 4000 Series Steel; Ferrous Metal; Low Alloy Steel; Medium Carbon Steel; Metal Key Words: alloy ...

AISI 4340 Steel, annealed, 25 mm round

Annealed: heated to 810°C, furnace cooled 11°C/hr to 355°C, air cooled. 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.

What is E4340 steel? – Richardvigilantebooks

AISI 4340 (E4340) alloy steel is a medium carbon, low alloy steel known for its toughness and strength. Machining is done typically in the annealed condition. 4340 steel alloy is used primarily for structural applications such as aircraft landing gears.

Evaluation of toughness in AISI 4340 alloy steel ...

treatment on the mechanical properties of as-quenched (untempered) AISI 4340 steel has shown that compared to conventional austenitizing at 870~ increasing the austenitizing temperature to 1200~ can raise the plane strain fracture toughness (Kic) by a factor of …

4140 and 4340 alloy steel - Metal and Metallurgy ...

The 4340 alloy steel by virtue of having nickel as an alloying element increases hardenability and increases toughness over 4140. Impact energy relates to toughness but when it comes to fracture toughness data, 4340 will have higher toughness …

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 wrought steels. In addition, it has a moderately high base cost and a moderately high ...

SAE AISI 4140 Steel Properties, Material Heat Treatment ...

SAE AISI 4140 Alloy Steel. SAE 4140 (AISI 4140 steel) is a Cr-Mo series (Chrome molybdenum series) low alloy steel, this material has high strength and hardenability, good toughness, small deformation during quenching, high creep strength and long-lasting strength at high temperature. 4140 Steel Uses. AISI SAE 4140 alloy steel can be made into round steel bar, flat & square steel bar, steel ...

4340 Alloy Steel | Material Datasheet

AISI 4340 (E4340) alloy steel is a medium carbon, low alloy steel known for providing a good balance between strength and malleability. Alloy 4340 is composed of (descending in order by weight): iron, nickel, chromium, manganese, carbon, molybdenum, silicon, phosphorus and sulfur. With proper working and strengthening, items made from 4340 have excellent wear and durability qualities.

4130 vs 4340 Steel Comparison - Steel Bar & Steel Wire ...

4340 This nickel-chromium-molybdenum alloy steel is a very high strength steel. It is sought after for its toughness and for being used as a steel that will be highly stressed. It is used in a variety of industries for different applications including the automotive, aerospace, and tooling industries. Chemical Properties

4340 Alloy Rod & Bar Supplier - Air Melt, Hot Finished ...

4340 Alloy Bar. 4340 alloy steel bar is used heavily in the aerospace industry due to its ultra-high strength. When heat treated it is known for its toughness while preserving good fatigue strength. For highly stressed parts it is excellent choice.

4340 High Tensile Steel | Interlloy | Engineering Steels ...

4340 is a 1.8% nickel - chromium - molybdenum high hardenability high tensile steel - generally supplied hardened and tempered in the tensile range of 930 - 1080 Mpa (condition U) - (Rc 28 - 36).. Characterised by high strength and toughness in relatively large sections.

4130 vs 4340 Steel Comparison | Capital Steel & Wire

4340 Alloy Steel Is a King of Among Alloys Known for its ...

The 4340 alloy steel bar is used heavily in construction across industries because of its ultra-high strength. This nickel-chromium-molybdenum alloy steel attains its high strength when heat-treated and has excellent resistance to fatigue. 4340's richer alloy content provides it with much deeper harden ability than the 4100 series of alloys.

(PDF) Improvement of AISI 4340 steel properties by ...

AISI 4340 is one of the most widely used steels in high-risk industries such as military, nuclear and aerospace. The strength of this steel is capable of increasing to 1 825 MPa with quench and ...

4340 / E4340 Nickel-Chromium-Molybdenum Alloy Steel - …

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. Commercial Quality available along with Air Craft Quality (Vac. Melt)

4140 vs. 4340 Steel Alloy - Bergsen Metal

Properties of 4340 vs. 4140 Steel. Due to their difference in chemical composition, 4340 and 4140 have some similar and some different properties. 4340. 4340 steel is known for its strength and toughness. These characteristics come from the fine and equal dispersion of carbides within its structures. Other key features include: Fatigue and wear ...

4340 ALLOY STEEL – AMS 6414 VAR – UNSG43406

4340 VAR AMS 6414 is a low alloy Chromium-Nickel-Molybdenum steel capable of being heat treated to high strength levels. This specification is for a premium aircraft-quality, low-alloy steel in the form of bars, forgings, mechanical tubing, and forging stock.

Encore Metals - 4340

4340. Richly alloyed heavy-duty steel, this nickel-chromium- molybdenum alloy possesses much deeper hardenability than the 4100 series, with increased ductility and toughness. These advantages are realized principally where high strength is required in heavy sections. Also the high fatigue strength of 4340 makes it ideal for all highly stressed ...

4340 Hardened and Tempered Bar - Interlloy

4340 High Tensile Steel: 4340 is a 1.8% nickel - chromium - molybdenum high hardenability high tensile steel - generally supplied hardened and tempered in the tensile range of 930 - 1080 Mpa (condition U) - (Rc 28 - 36).. Characterised by high strength and toughness in relatively large sections.

Steel 4340 AMS 6415 | Tech Steel & Materials

Home> Online Catalog > Steel > 4340 > AMS 6415 AMS 6415 is a sub-type specification of Steel 4340, which is low-alloy nickel-chromium-molybdenum steel with medium carbon content. The material comes in the annealed condition, but other sub-specifications come in the hardened and tempered conditions.

Datasheet for Steel Grades Carbon Steel AISI 4340

This page is mainly introduced the AISI 4340 Datasheet, including chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of AISI 4340,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.