AISI 8620 Alloy Steel

UNS G86200

AISI 8620 Alloy Steel

AISI 8620 alloy steel is a low alloy nickel, chromium, molybdenum case hardening steel, generally supplied in the as rolled condition with a maximum hardness HB 255max. AISI 8620 alloy steel offers high external strength and good internal strength, making it highly wear resistant. AISI 8620 alloy steel has a higher core strength than grades 8615 and 8617. AISI 8620 alloy steel is flexible during hardening treatments, thus enabling improvement of case/core properties. Pre-hardened and tempered (uncarburized) AISI 8620 alloy steel can be further surface hardened by nitriding but will not respond satisfactorily to flame or induction hardening due to its low carbon content.

AISI 8620 alloy steel applications include gears, cranks, shafting, axles, bushings, heavy duty pins, bolting, springs, hand tools, chains, and many other machinery parts.

Product forms include bar, seamless tubing, and plate.

AISI 8620 Alloy Steel

Standards

  • UNS G86200

Characteristics

  • high case toughness and above average core toughness
  • the most widely used carburizing alloy steel

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

MIN
MAX
Carbon
C
0.180
0.230
Manganese
Mn
0.70
0.90
Sulfur
S
-
0.04
Phosphorus
P
-
0.035
Silicon
Si
0.15
0.35
Chromium
Cr
0.40
0.60
Molybdenum
Mo
0.15
0.25
Iron
Fe
96.895
98.020

Mechanical Properties

Tensile (min)
KSI (MPa)
76.9 (530)
Yield (min)
KSI (MPa)
55.8 (385)
Elongation (min) %
26
Reduction of Area (min) %
60
Hardness
HRB (BHN)
80 (149)

Downloads

DATASHEET (PDF)

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.

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Specialty Steel Supply - Pinehurst, Texas

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.

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Specialty Steel Supply

19201 Circle Lake Drive
Pinehurst, Texas 77362

info@specialtysteelsupply.com

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AISI 8620 Alloy Steel
AISI 8620 Alloy Steel
AISI 8620 Alloy Steel
AISI 8620 Alloy Steel