AISI 4340 steel properties offer good ductility in the annealed condition, allowing it to be bent or formed. Fusion and resistance welding is also possible with our 4340 alloy steel. ASTM 4340 material is often utilized where other alloy steels do not have the hardenability to give the strength required.
And it has good toughness, fatigue resistance, impact toughness and etc. 4340 steel properties and 4340 steel composition as below. It is an alloy structural grade which used by the SAE International(SAE), and it is chrome-nickel low alloy steel. 4340 steel will get high
Steel Grade Equivalent Table (EN, SAE/AISI, UNS, DIN, BS, UNI, JIS) The table below compares common grades of materials from various international specifications. Note that materials compared are the nearest available grade and may have slight variations in actual chemistry.
Material may also meet specs ASTM-A829, AMS-2301, EN10204. For detailed information and chemical analysis visit the 4340 (E4340) steel page. For our AISI 4130 (E4130) aircraft quality steel products please visit the 4130 (E4130) steel section. We also offer Flat Bar from Plate
4340 steel has outstanding harden-ability and high-strength characteristics. Ideal for highly stressed parts operating under severe conditions, aircraft quality AISI 4340 steel alloy material is excellent for shafts and valves that are subject to extreme conditions.
Alloy 4340 in Plate SPECIFICATIONSAISI4340, ASTM A 829 / A6 SAE J404, AMS 2252/ 2301/6359 SAE J404 Castle Metals stocks Alloy 4340 plate through our global distribution network. Our service centers are located throughout the U.S., Canada, Mexico, U.K, France, Singapore, and Shanghai. Customers calling us for 4340 plate a lot of times are frustrated with on-time delivery issues.
ASTM's steel standards are instrumental in classifying, evaluating, and specifying the material, chemical, mechanical, and metallurgical properties of the different types of steels, which are primarily used in the production of mechanical components, industrial parts, and construction elements, as well as other accessories related to them.
Low alloy 4340ASTM A29 (VO1.05) General scope AISI 4340 is a low alloy steel containing nominally 0.4% C, 0.8% Cr, 0.25% Mo and 1.8% Ni. Higher strength levels up to 150 KSI 0.2% PS may be achieved by suitable heat treatment. Often used in preference to AISI 4140 at
SAE-AISI 4140 Steel vs. SAE-AISI 4340 Steel :MakeItFrom
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.
ASTM, SAE and ISO Grade Markings for Steel Fasteners
Download a complimentary PDF of our Fastener Markings chart. Contact American Fastener with any questions or for a custom quote. Identification Grade Mark Specification Fastener Description Material Nominal Size Range (in.) Mechanical Properties Proof Load(psi) Yield Strength Min (psi) Tensile Strength Min (psi) NoGradeMark SAE J429 Grade 1 Bolts, Screws, Studs Low or Medium Carbon