SAE 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. SAE 8620 alloy steel offers high external strength and good internal strength, making it highly wear-resistant. SAE 8620 steel has a higher core strength than grades 8615 and 8617.
SAE 8620 alloy steel is flexible during hardening treatments, thus enabling improvement of case/core properties. Pre-hardened and tempered (uncarbonized) 8620 can be further surface hardened by nitriding but will not respond satisfactorily to flame or induction hardening due to its low carbon content. SAE 8620 alloy steel is suited for applications that require a combination of toughness and wear resistance. This grade is commonly supplied in a round bar.
SAE 8620 Grade Application:
The SAE 8620 can be used for a number of medium-strength applications such as cylinder rods, camshafts, fasteners, gears, and chains/chain pins.
SAE 8620 Equivalent grades:
|
USA |
DIN |
BS |
BS |
JAPAN |
|
ASTM A29 |
DIN 1654 |
EN 10084 |
BS 970 |
JIS G4103 |
|
8620 |
1.6523/21NiCrMo2 |
1.6523/21NiCrMo2-2 |
805M20 |
SNCM220 |
WHAT IS THE ADVANTAGES OF OUR SAE8620 CHROME PLATED ROD?
- Carbon steel balances durability, hardness, and wear resistance using formability, weldability, and durability;
- Chrome plating provides corrosion resistance along with an Extremely reflective look
- High precision tolerances, which ensures when used to make hydraulic piston rod, it can fit the cylinder precisely.
- Good Hardness: the surface hardness attaining HV850 minimal and upward, which not only help improve wear resistance but also help extend the life span of these chrome plated rods, thereby helping the consumer save the cost.