Alloy Steel 4340 MOD 300M: forms, specifications and uses
Alloy Steel 4340 MOD 300M (UNS K44220): AISI 300M (4340 MOD) alloy steel is a low alloy and vacuum melted alloy steel.
Titanium Industries offers AISI 300M (4340 MOD) alloy steel is a low alloy and vacuum melted alloy steel. A modified version of AISI 4340 steel, 300M has high content of molybdenum and silicon in comparison to AISI 4340 steel. This alloy steel demonstrates high strength, good toughness, fatigue strength and ductility; which allows for the the material to be used in aircraft landing gear, airframe parts, flap track, components for missiles, and some motorsport applications. Alloy Steel Round Bar Offered at Titanium Industries can be found here. AISI 300M (4340 MOD) from its locations.
Alloy Steel 4340 MOD 300M is supplied to specifications including AMS 2300, AMS 6257, AMS 6417, AMS 6419 and ASTM A646.
Typical uses of Alloy Steel 4340 MOD 300M include aircraft landing gear, airframe parts, flap track, components for missiles and motorsports.
For Alloy Steel 4340 MOD 300M, request a quote online or contact your nearest Titanium Industries location. Alloy data on this page is for reference only, not for design.
AISI 300M (4340 MOD) alloy steel is a low alloy and vacuum melted alloy steel. A modified version of AISI 4340 steel, 300M has high content of molybdenum and silicon in comparison to AISI 4340 steel. This alloy steel demonstrates high strength, good toughness, fatigue strength and ductility; which allows for the the material to be used in aircraft landing gear, airframe parts, flap track, components for missiles, and some motorsport applications.
Alloy Steel Round Bar Offered at Titanium Industries can be found here.
AISI 300M (4340 MOD) Specifications:
Alloy Steel AISI 300M (4340 MOD) Applications:
- Aircraft landing gear
- Airframe parts
- Flap track
- Components for missiles
- Motorsports
Discounted Alloy Steel Inventory
DISCLAIMER: Alloy data sheets are for reference only, not for design purposes.
| Chemical Composition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| C 0.38 - 0.43% Max | Mn 0.65 - 0.90% | Si 1.45 - 1.80% | P 0.010% Max | S 0.008% | |||||
| Cr 0.70 - 0.95% | Ni 1.65 - 2.00% | Mo 0.30 - 0.50% | V 0.05 - 0.10% | Cu 0.35% Max | |||||
| PHYSICAL PROPERTIES | ||||||
|---|---|---|---|---|---|---|
| Density (lbs/cubic in) | Electrical conductivity (% IACS) | Thermal conductivity (BTU-in/hr-ft²-°F) | Specific heat capacity | Thermal expansion (1/°F) | Melting Point (°F) | |
| 0.284 | - | - | - | - | 2590 | |
| Mechanical Properties (AMS 6417K, longitudinal, response-to-heat-treatment requirements) | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Property | Minimum | Maximum | |||||||
| Yield Strength (Rp0.2 Offset) (ksi) | 220 | - | |||||||
| Tensile Strength (ksi) | 270 | - | |||||||
| Elongation | 8% | - | |||||||
| Hardness (HBW) | - | - | |||||||
| Modulus of Elasticity (ksi) (E): - | |||||||||
| Machineability General Index: - | |||||||||
Alloy Steel 4340 MOD 300M: questions and answers
What is Alloy Steel 4340 MOD 300M?
What is Alloy Steel 4340 MOD 300M?
AISI 300M (4340 MOD) alloy steel is a low alloy and vacuum melted alloy steel.
Which Alloy Steel 4340 MOD 300M product forms does Titanium Industries stock?
Which Alloy Steel 4340 MOD 300M product forms does Titanium Industries stock?
AISI 300M (4340 MOD) alloy steel is a low alloy and vacuum melted alloy steel. A modified version of AISI 4340 steel, 300M has high content of molybdenum and silicon in comparison to AISI 4340 steel. This alloy steel demonstrates high strength, good toughness, fatigue strength and ductility; which allows for the the material to be used in aircraft landing gear, airframe parts, flap track, components for missiles, and some motorsport applications. Alloy Steel Round Bar Offered at Titanium Industries can be found here. AISI 300M (4340 MOD).
Which specifications does Alloy Steel 4340 MOD 300M meet?
Which specifications does Alloy Steel 4340 MOD 300M meet?
AMS 2300, AMS 6257, AMS 6417, AMS 6419 and ASTM A646.
What is Alloy Steel 4340 MOD 300M used for?
What is Alloy Steel 4340 MOD 300M used for?
Aircraft landing gear, airframe parts, flap track, components for missiles and motorsports.