AISI 8620 Steel Round Bar Sheet Plate, DIN 1.6523, JIS SNCM220
8620 steel has high hardenability without temper brittleness. It is also called DIN 1.6523 and JIS SNCM220 steel. It also has good weldability, little tendency to form cold cracks, and good machinability and cold strain plasticity. It is used to make gears, shafting, bolting, springs, hand tools and etc. 8620 steel round bar sheet plate properties and 8620 steel composition as below.
| AISI 8620 Steel Round Bar Plate Sheet Supply Range | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Type | Specification | Surface | |||||||||||||||||
| Round Bar | Diameter: 16mm – 800mm; length: 2000mm-5000mm
Other specifications can be customized. | Black Surface/Bright Surface/ Grinded/Peeled/Turned | |||||||||||||||||
| Sheet/Plate/Slab | Thickness: 16-800mm; width: 205mm-810mm;
length: 2000mm-5000mm Other specifications can be customized. | Black Surface/Bright Surface/ Grinded/Peeled/Turned | |||||||||||||||||
8620 Steel Grade Equivalent Chart
| Country | USA | Germany/UK/France | JAPAN | ISO |
|---|---|---|---|---|
| Standard | ASTM A29/A29M-05 | EN 10084-2008 | JIS G4053-2008 | ISO 683/11:1987 |
| Grades | 8620 | 20NiCrMo2-2 (1.6523) | SNCM220 | 20NiCrMo2 |
1.6523 Steel Chemical Composition
| STAND | C(%) | Mn(%) | P(%) | S(%) | Si(%) | Cr(%) | Mo(%) | Ni(%) |
|---|---|---|---|---|---|---|---|---|
| ASTM A29/A29M-05 | 0.18-0.23 | 0.70-0.90 | ≤0.035 | ≤0.040 | 0.15-0.35 | 0.40-0.60 | 0.15-0.25 | 0.40-0.70 |
| EN 10084-2008 | 0.17-0.23 | 0.65-0.95 | ≤0.025 | ≤0.035 | 0.40 | 0.35-0.70 | 0.15-0.25 | 0.40-0.70 |
| JIS G4053-2008 | 0.17-0.23 | 0.60-0.90 | Max0.030 | Max0.030 | 0.15-0.35 | 0.40-0.60 | 0.15-0.25 | 0.40-0.70 |
| ISO 683/11:1987 | 0.17-0.23 | 0.65-0.95 | ≤0.035 | ≤0.035 | 0.15-0.40 | 0.30-0.65 | 0.15-0.25 | 0.40-0.70 |
1.6523 Steel Physical Properties
| Properties | Metric | Imperial |
|---|---|---|
| Density | 7.85 g/cm³ | 0.284 lb/in³ |
1.6523 Steel Mechanical Properties
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength | 530 MPa | 76900 psi |
| Yield strength | 385 MPa | 55800 psi |
| Elastic modulus | 190-210 GPa | 27557-30458 ksi |
| Bulk modulus (typical for steel) | 140 GPa | 20300 ksi |
| Shear modulus (typical for steel) | 80 GPa | 11600 ksi |
| Poisson’s ratio | 0.27-0.30 | 0.27-0.30 |
| Izod Impact | 115 J | 84.8 ft.lb |
| Hardness, Brinell | 149 | 149 |
| Hardness, Knoop (converted from Brinell hardness) | 169 | 169 |
| Hardness, Rockwell B (converted from Brinell hardness) | 80 | 80 |
| Hardness, Vickers (converted from Brinell hardness) | 155 | 155 |
| Machinability (hot rolled and cold drawn, based on 100 machinability for AISI 1212 steel) | 65 | 65 |
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8620 Steel Application
AISI 8620 alloy steel is mainly used as a material for impact and wear resistant parts such as automobile bearings, camshafts, etc. In the carburized state it is used for gears, ring gears, shafts and crankshafts.It can also be used for the claws and cone bodies of the roller cone bits for oil drilling and metallurgical open-pit mines, and to manufacture the forgings of the connecting rod valve section of the steam turbine gear whole rotor internal combustion engine.
1.6523 Steel Characteristics
1.It is a low alloy nickel, chromium, molybdenum case hardening steel.
2.It has good external and internal strength, so there with high wear-resistant.
3.It is usually used to make many medium-strength tools.
8620 Steel Round Bar Sheet Plate Heat Treatment and Produced
Annealing
It may be given a full anneal by heat to 820℃ – 850℃, and hold until temperature is uniform throughout the section and cool in the furnace or air cooled.
Tempering
Tempering of heat treated and water quenched parts of it (not carburized) is done at 400 F to 1300 F to improve case toughness with minimal effect on its hardness. This will also reduce the possibility of grinding cracks.
Hardening
It will be austenitized at around 840°C – 870°C, and oil or water quenched depending upon section size and intricacy. And cool it in Air or oil required.
Normalizing
1675ºF (910ºC) and air cool. This is another method of improving machinability in 8620 steel material; normalizing might also be used prior to the case hardening.
Heat Treatment
This alloy may be hardened by heating to 1500 F followed by a water quench. Carburize at 1650 to 1700 F in an appropriate carburizing medium and oil quench to harden. Improved carburized case and core properties can be obtained by furnace cooling from carburizing at 1650 – 1700 F and then reheating to 1575 F.
AISI 8620 Steel Round Bar Plate Sheet Supply
We have our own cutting and processing equipment. Specifications can be cut and customized according to your requirements.
We are a professional special steel stockist and supplier with a high-quality stand for many years. As a professional 8620 steel material supplier, please contacts us for any request for it. Songshun Steel always with you.
Our Advantage
Manufacturing
With 7000 tons of hydraulic forging press, electric slag furnace and other high-end production equipment, we produce a great variety of steels with the best quality in China.
Testing
In order to control the quality, we have complete testing methods to make sure satisfy the customer needs, including Chemical Analysis, Ultrasonic Test and so on.
Massive Stock
We keep a mass stock are over 20000 tons for various steel type, including steel round bar, steel sheet, alloy steel, carbon steel, stainless steel, mold steel, steel coil and etc.
Customized Service
With a professional steel engineers team, we provide customized service according to your project drawing, also provide professional project experience for your special project, such as materials, processing conditions and etc.
World Wide Delivery
For container shipment, standard packing and bundle round bar and flat bar would be applied. It is necessary to fasten & reinforcement would be done to ensure the safety and better unloading at the destination port.
For less than container shipment, wooden box package would be applied for different size materials. For milled or grounded materials, the anti-rust oil would be needed to ensure the surface condition, within the wooden box.
