Factory wholesale price for AISI 8620 Steel | 1.6523 | 21NiCrMo2 | SNCM220 Wholesale to Melbourne
AISI 8620 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 steel 8620 offers high external strength and good internalstrength, making it highly wear resistant. AISI 8620 steel has a highercore strength than grades 8615 and 8617. SAE 8620 alloy steel isflexible during hardening treatments, thus enabling improvement ofcase/core properties. Pre hardened and tempered (uncarburized) 8620 ca...
Our development depends on the advanced equipment ,excellent talents and continuously strengthened technology forces for Factory wholesale price for AISI 8620 Steel | 1.6523 | 21NiCrMo2 | SNCM220 Wholesale to Melbourne, We sincerely welcome overseas customers to consult for the long-term cooperation and the mutual development.
is a low alloy nickel, chromium, molybdenum case hardening steel,
generally supplied in the as rolled condition with a maximum hardness HB
255max. SAE steel 8620 offers high external strength and good internal
strength, making it highly wear resistant. AISI 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 (uncarburized) 8620 can
be further surface hardened by nitriding but will not respond
satisfactorily to flame or induction hardening due to its low carbon
Steel 8620 is suited for applications which require a
combination of toughness and wear resistance. This grade is commonly
supplied in round bar.
1. AISI 8620 Steel Supply Range
8620 Round Bar: diameter 80mm – 1200mm
8620 Steel Plate: thickness 10mm – 1500mm x width 200mm – 3000mm
8620 Square Bar: 140mm – 460mm
8620 tubes are also available against your detailed request.
Surface Finish: Black, Rough Machined, Turned or as per given requirements.
2. SAE 8620 Steel Specification and Relevant Standards
3. ASTM 8620 Steels & Equilvalents Chemical Composition
4. AISI 8620 Steel Mechanical Properties
8620 Physical Properties:
Density (lb / cu. in.) 0.283
Specific Gravity 7.8
Specific Heat (Btu/lb/Deg F – [32-212 Deg F]) 0.1
Melting Point (Deg F) 2600
Thermal Conductivity 26
Mean Coeff Thermal Expansion 6.6
Modulus of Elasticity Tension 31
8620 Steel Mechanical Properties
|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|
|Izod Impact||115 J||84.8 ft.lb|
|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|
5. Forging of Material 8620 Steel
8620 alloy steel is forged at a start temperature of around 2250ºF
(1230ºC) down to approximately 1700ºF(925ºC.) prior to the hardening
heat treatment or carburizing. The alloy is air cooled after forging.
6. ASTM 8620 Steel Heat Treatment
8620 steel may be given a full anneal by heat to 820℃ – 850℃, and hold
until temperature is uniform throughout the section and cool in furnace
or air cooled.
of heat treated and water quenched parts of 8620 steels (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
AISI steel 8620 will be austenitized at around 840°C – 870°C, and oil
or water quenched depending upon section size and intricacy. Cool in Air
or Oil required.
(910ºC) and air cool. This is another method of improving machinability
in 8620 material; normalizing might also be used prior to case
7. Machinability of SAE 8620 Steel
8620 alloy steel is readily machined after heat treatment and/or
carburizing, should be at a minimum so as not to impair the hardened
case of the part. Machining may be done by conventional means prior to
heat treatment – after carburizing machining is usually limited to
8. Welding of 8620 Materials
alloy 8620 may be welded as rolled condition by conventional methods,
usually gas or arc welding. Preheating at 400 F is beneficial and
subsequent heating after welding is recommended – consult the approved
weld procedure for the method used. However, welding in the case
hardened or through hardened condition is not recommended
9. Application of ASTM 8620 Steel
8620 steel material is used extensively by all industry sectors for
light to medium stressed components and shafts requiring high surface
wear resistance with reasonable core strength and impact properties.
applications are: Arbors, Bearings, Bushings, Cam Shafts, Differential
Pinions, Guide Pins, King Pins, Pistons Pins, Gears, Splined Shafts,
Ratchets, Sleeves and other applications where it is helpful to have a
steel that can be readily machined and carburized to controlled case
In this segment The Aluminum Channel™ examines what it takes to be competitive supplying and machining aluminum for the Aerospace Market. The sophisticated machining operations at Global Machine Works in Arlington, WA are shown up close, processing KaiserSelect Aerospace Plate™ for a critical airframe application.
Viewers on The Aluminum Channel™ will see what it takes to successfully service the aerospace industry; taking you from the mill to the finished part ready for assembly on the aircraft.
Global Machine Works in Arlington, WA is featured because they are an efficient producer of aerospace machined parts. They have some fascinating machining capabilities and a continuous loading cell system attached to their Grob 550 fixed spindle – 5-axis machines.
We had to. Has my obsession with Batman gone too far?
SUBSCRIBE for more AWESOME Videos ► http://goo.gl/MU4hNA
After all the red hot knife videos, we decided to try a different approach. Using both a transformer for resistive heating (video on that here: https://www.youtube.com/watch?v=WwNpJ_XbHN0), and an induction heating setup, we heat up metal much more efficiently than using a propane torch.
But to keep it interesting, we bust out the batarangs we made last year in a Make it Real project (https://www.youtube.com/watch?v=n9XG6UiPxUg), and see how much damage a RED HOT BATARANG could do a target. We test it on bread, butter, a melon, a foam board — and even flesh.
To show the true temperature of the batarang we also use a thermal camera to check the temperature — unfortunately it’s even too hot for the thermal camera to read! During a few of our tests we melted the batarangs, and since stainless steel has a melting point of around 1450C, or nearly 2500F — it’s safe to say these are the HOTTEST red hot knife videos around.
Thanks for watching and don’t forget to check out our other MAKE IT REAL projects where we take fictional ideas from movies, comics, and video games — and make real working prototypes. Just like these batarangs.
Want to see more great projects and access behind the scenes content? Help support the channel on Patreon! http://www.patreon.com/thehacksmith
To see more projects, check out our website at:
Chat with other fans and the Hacksmith team on Discord!
Follow us on Social Media for updates between videos!
Tormach PCNC 440. Check it out here https://www.tormach.com
LulzBot TAZ 6 3D printer. Check out the Taz6 here: http://amzn.to/2fvfPyH
Watch the full Channel Trailer:
(includes links to individual projects shown!)
WARNING: THESE VIDEOS ARE FOR ENTERTAINMENT PURPOSES ONLY. PERSONAL USE OF VIDEO CONTENT IS AT YOUR OWN RISK. THE HACKSMITH IS A TRAINED PROFESSIONAL WHO KNOWS EXACTLY WHAT HE’S DOING. EXCEPT WHEN HE DOESN’T.