AISI 4145 Alloy Steel
UNS G41450AISI 4145 Alloy Steel
AISI 4145 alloy steel containing 0.20% molybdenum is widely used particularly throughout oil patch applications. AISI 4145 alloy steel is similar to AISI 4140 alloy steel which has a lower carbon level it has improved hardenability and is more commonly used at higher strength levels. Larger diameters are often supplied with higher molybdenum level, 0.35% max, this may also be used on higher strength variants at smaller diameters. AISI 4145 alloy steel is used extensively for drill collars.
AISI 4145 alloy steel is suitable for downhole drilling tools such as subs, crossovers, drill collars, pup-joints and fishing tools. General engineering applications include components exposed to heavy strain, such as shafts, gear, bolts etc.
Product forms include bar, seamless tubing, and plate.
Standards
- UNS G41450
Characteristics
- Good for components exposed to heavy strain
- Poor weldability, can be welded.
Physical Properties
- Density: 0.284 LB/in³ (7.85 g/cm³)
- Melting Range: 2580-2650°F (1416-1454°C)
- Modulus of Elasticity: 29.7 x10⁶psi (205 Gpa)
- Magnetic Permeability:
Chemical Composition
C
Mn
S
P
Si
Cr
Mo
Fe
Mechanical Properties
KSI (MPa)
KSI (MPa)
HRB (BHN)
Specialty Steel Supply makes all reasonable efforts to ensure the accuracy and correctness of the data found on this website and the associated documents but makes no representations or warranties as to the data’s accuracy, correctness or reliability. All data are for general information only and not for providing design advice. It is the responsibility of the user to test specific alloys under actual service conditions to determine their suitability for a particular purpose.
Stainless and Alloys
We collaborate to help you exceed requirements by bringing your best ideas forward and eliminating non-conformance.
Specialty Steel Supply Inc. is one of the largest distributors of austenitic, precipitation hardened, duplex and martensitic stainless steels. We have a wide range of products and types of stainless steel round bar and our well trained staff offers many years of experience in all aspects of the steel industry. Our ability to procure and source metals from all parts of the world allows us to stay competitive in a global marketplace. We are committed to developing and servicing just in time inventory programs.
Specialty Steel Supply
19201 Circle Lake Drive
Pinehurst, Texas 77362
info@specialtysteelsupply.com
Business Hours
Sunday - Closed
