4340 steel properties

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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 ...

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AISI 4340 Steel, oil quenched 855°C (1570°F), 230°C (450°F ...

AISI 4340 Steel, oil quenched 855°C (1570°F), 230°C (450°F) temper for 4 hrs., tested at -195°C (-320°F) (Unverified Data**) Categories:

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ALLOY | Castle Metals Site

In addition, the Nickel in Alloy 4340 increases hardenability of the steel. An additional grade of Alloy 4340 is Alloy E-4340. E-4340 is critical for parts in aerospace and other industries where great strength is needed. The annealing of Alloy E-4340 characterizes the grade as containing excellent impact and strength properties with good ...

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Mechanical properties and microstructural features of AISI ...

Mar 15, 1999· In this work, the mechanical properties and microstructures of AISI 4340 high strength alloy steel under different tempering conditions are investigated. The specimens are quenched and tempered to a martensite structure and loaded to fracture at a constant strain-rate of 3.3×10 −4 s −1 by means of a dynamic material testing machine (MTS 810).

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Steel 300M | Tech Steel & Materials

300M is a low alloy, vacuum melted, steel of very high strength. Essentially it is a modified AISI 4340 steel with silicon, vanadium and slightly greater carbon and molybdenum content than 4340. 300M has a very good combination of strength (280 to 305 ksi), toughness, fatigue strength and good ductility. It is a through hardening alloy. Applications for 300M steel are those that require ...

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steel bars 4340 - Steel--Bending | Folding of large ...

4340 Cold Drawn Bar Capital Steel is a distributor of 4340 grade cold drawn steel bar stock.4340 cold finished steel is an excellent heavy duty steel alloy as it combines ductility,strength and toughness.4340 High Tensile Steel Interlloy Engineering Steels 4340 is a 1.8% nickel - chromium - molybdenum high hardenability high tensile steel ...

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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.

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Impact Characterization of 4340 and T200 Steels by Means ...

properties of three steels, used by NIST for the production of Charpy reference specimens (4340 quenched and tempered with two energy levels, and T200 18Ni maraging steel). For each of the steels, tests were performed on standard E23 Charpy specimens, sub-size specimens of …

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AISI 4340 (E4340) per AMS 6415 - Bars (HR)

Aircraft Quality 4340 per 6415 Hot Rolled (H.R.) Round Bar. Our AMS 6415 Round Bar Hot Rolled Aircraft Quality material meets AISI 4340 steel grade specifications in accordance with ASTM International Standards. This grade of chromoly bar has outstanding harden-ability as one of the richer alloy grades.

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4340 | ALLOY | In Stock | Castle Metals Site

In addition, the Nickel in Alloy 4340 increases hardenability of the steel. An additional grade of Alloy 4340 is Alloy E-4340. E-4340 is critical for parts in aerospace and other industries where great strength is needed. The annealing of Alloy E-4340 characterizes the grade as containing excellent impact and strength properties with good ...

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4340 Alloy Steel | 1.6511 | 36CrNiMo4 | 40NCD3 | 40CrNiMo ...

AISI 4340 Steel is a Alloy Structural Steel belong to ASTM A29/A29M Steel Grade standard. AISI 4340 used in Oil and Gas industry and Large Machinery Strutural. 4340 Steel China Supplier and factory Otai Special Steel Supply 4340 steel in Round bar, Plate, Flat bar,

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(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 …

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4340 Round Steel Bar Supplier | Eaton Steel Bar Company

4340 Hot Rolled SBQ Bar. Hot rolled 4340 steel bar is a nickel-chromium-molybdenum medium carbon alloy steel that is known for its toughness. This steel grade also has good ductility and high strength. Hot rolled 4340 bar has good impact, …

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Datasheet 4340 ALLOY STEEL – AMS 6414 VAR – UNSG43406

4340 ALLOY STEEL – AMS 6414 VAR – UNSG43406 DATA SHEET GENERAL CHARACTERISTICS: 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.

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AISI/SAE 4340 Alloy Steel- 4340 Steel Properties | All ...

AISI/SAE 4340 Alloy Steel, 4340, is a nickel-chromium-molybdenum alloy steel known for its toughness and its ability to attain high strengths in the heat-treated condition. Commercial and military aircraft, automotive systems, forged hydraulic and other machine tool applications, forged steel crankshafts.

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4130 vs 4340 Steel Comparison | Capital 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

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

May 07, 2013· 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 over 4140 at similar strength levels (quench and temper).

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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.

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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 ...

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K ELEVATED TEMPERATURE FATIGUE PROPERTIES OF SAE …

creep effects at elevated temperatures for steel. These properties were investigated in this project, and the results are presented in the form of modified Goodman and other diagrams. MATMIAL AND PROCEU3iM The test material used was S.A.E. 4340 aircraft quality steel, conforming to Military Specification MII-S-5000A.

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4340 Steel - 4340 Steel Plate | Pennsylvania Steel Corporation

Superior Steel Alternative to. 4340 Alloy Steel. Pennsylvania Steel Corporation offers an alternative to SAE 4340 alloy steel. We produce FLEXOR® steel to be similar if not superior in its mechanical properties to 4340 alloy steel. Taking this into account, it is suitable and can be utilized in most of the same applications as 4340 alloy steel.

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

Dec 14, 2019· 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 …

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MatWeb - The Online Materials Information Resource

17. AISI 4340 Steel, oil quenched 800°C (1470°F), 650°C (1200°F) temper, 100 mm. 18. AISI 4340 Steel, oil quenched 845°C, 650°C (1200°F) temper. 19. AISI 4340 Steel, oil quenched 845°C, 425°C (800°F) temper. 20. AISI 4340 Steel, oil quenched 855°C (1570°F), 230°C (450°F) temper for 4 hrs. 21.

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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.

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A Comparison of Fatigue Properties of Austempered Versus ...

Jan 04, 2011· 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-

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materials, Magnetic property data for AISI 4340 steel?

4340 is a Ni-Cr-Mo deep hardening steel with 0.40 wt% carbon. Yes, I. know carbon content strongly affects magnetic properties. But in the. normal range for steels (less than 1%) it soesn't strongly affect the. saturation magnetization.

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4340 (E4340) Alloy Steel, AISI 4340, Plate, Round Bar AQ ...

About 4340 (E4340) Alloy Steel. 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 properties offer good ductility in the annealed condition, allowing …

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4340 Steel | 36CrNiMo4 | 1.6511 | EN24 | SNCM439 - Otai ...

AISI 4340 steel is a medium carbon, low alloy steel. Otai steel is one leading supplier of 4340 steel & equivalents: 36CrNiMo4, 1.6511, EN24, SNCM439 etc.

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4340 Heat Treated - pmtsco.com

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.

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AISI 4340 vs 4140 Steel Comparison - Otai special steel

Below is a chemical and mechanical properties comparison of AISI 4340 vs 4140 steel. 4340. 4340 Steel is a high quality Quenched and Tempered Alloy Structural steel, It belongs to the high quality medium carbon, Oil Quenched & Tempered Hardness is 28-34 HRC.4340 Annealing delivery hardness less than 250HB. 4140.

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SAE-AISI 4140 Steel vs. SAE-AISI 4340 Steel :: MakeItFrom.com

May 30, 2020· Both SAE-AISI 4140 steel and SAE-AISI 4340 steel are iron alloys. They have a very high 98% of their average alloy composition in common. For each property being compared, the top bar is SAE-AISI 4140 steel and the bottom bar is SAE-AISI 4340 steel. SAE-AISI 4140 (SCM440, G41400) Cr-Mo Steel SAE-AISI 4340 (SNCM439, G43400) Ni-Cr-Mo Steel.

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Tensile Properties of Five Low-Alloy and

For this investigation a 0.130-in.-thick sheet of 4340 steel and 0.063-in~hick sheets of 4130 steel, 17-7 PH stainless steel, and 410 stainless steel were …

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SAE-AISI 4340 (SNCM439, G43400) Ni-Cr-Mo Steel ...

May 30, 2020· 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 ...

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