Rolled Forged alloy Round Steel Bar D2 H13 1045 4340 4140 P20
1: 8620 steel introduction
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 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 content
.
2: 8620 Steel equivalent
| Country |
Japan |
Germany |
Britain |
USA |
| Standard |
JIS G4103 |
DIN 1654 |
BS970 |
ASTM A29 |
| Grade |
SNCM220 |
21NiCrMo2/1.6523 |
805M20 |
8620 |
3: 8620 steel chemical composition
| Grade |
C |
Si |
Mn |
P |
S |
Cr |
Mo |
Ni |
| 8620 |
0.18-0.23 |
0.15-0.35 |
0.7-0.9 |
0.035 |
0.04 |
0.4-0.6 |
0.15-0.25 |
0.4-0.7 |
| 1.6523 |
0.17-0.23 |
0.4 |
0.65-0.95 |
0.035 |
0.035 |
0.4-0.7 |
0.15-0.25 |
0.4-0.7 |
| 805M20 |
0.17-0.23 |
0.1-0.4 |
0.6-0.9 |
0.03 |
0.03 |
0.35-0.65 |
0.15-0.3 |
0.4-0.7 |
| SNCM220 |
0.17-0.23 |
0.15-0.35 |
0.6-0.9 |
0.03 |
0.03 |
0.4-0.65 |
0.15-0.25 |
0.4-0.7 |
4: 8620 steel mechanical properties
The mechanical properties mainly include tensile strength, yield strength, elongation, area or reduction, hardness, impact value, non-metalic inclusion etc. Different heat treatment, the mechanical properties will be different, such as normalized, tempered, QT. If you want to know the properties, kindly contact the salesman.
5: steel overviews
| Size |
Round |
Dia 6-1200mm |
| Plate/Flat/Block |
Thickness
6mm-500mm |
Width
20mm-1000mm |
| Heat treatment |
Normalized ; Annealed ; Quenched ; Tempered |
| Surface condition |
Black; Peeled; Polished; Machined; Grinded; Turned; Milled |
| Delivery condition |
Forged; Hot rolled; Cold drawn |
| Test |
Tensile strength, Yield strength, elongation, area of reduction, impact value, hardness, grain size, ultrasonic test, US inspection, magnetic particle testing, etc. |
| Payment terms |
T/T;L/C;/Money gram/ Paypal |
| Trade terms |
FOB; CIF; CNF |
| Delivery time |
20-25 days |
| Application |
D2 used for Blanking Dies, Forming Dies, Coining Dies, Slitting Cutters, Heading Tools, Long Punches, Forming Rolls, Edging Rolls, Master Tools, Beading Rolls, Intricate Punches, Extrusion Dies, Drawing Dies, Lamination Dies, Thread Rolling Dies, Shear Blades, Burnishing Tools, Gauges, Knurls, Wear Parts. |
6: Delivery condition
For hot forged bar, usually the delivery condition is hot forged, annealed rough turned/Black surface.
For hot rolled bar, usually the delivery condition is hot rolled, annealed, Black surface.
For hot forged plate, usually the delivery condition is hot forged, annealed, milled surface
For hot rolled plate, usually the delivery condition is hot rolled, annealed, black surface.
Shandong Zayi has the capacity to forge round steel, steel flat, square steel, module, shaft and roller, etc. The main specifications of the products include Φ80-1000mm forging materials and 80-1200mm square billets and which the maximum piece weight can reach 50T.
We were already engaged in exporting steel for 11 years, could supply a great variety of hot forged,
hot rolled and
cold drawn Steels, including engineering steel, cold work tool steel, hot work tool steel, plastic mold steel, spring steel, high speed steel, stainless steel etc., besides Shandong Zayi also has their own heating treatment shop and machining shop to provide heating and cutting service.
Since 2008 year, Shandong Zayi has the right to export all
FORGED STEEL .The forged products are used in Automotive, Aerospace, Power Generation, Oil & Gas, Transportation and Industrial. We already set up the warehouse in Wuxi and Dongguan city, more than 20000 tons ex-stock could be supplied with kinds of size.
Shandong Zayi is the professional one-stop steel manufacturer, stockist and exporter in China, our customers spread all over the world, include West Europe, North America, South America, Asia, Middle Asia, Africa, Australia, etc.
The company owns advanced special steel smelting facilities and forging processing equipments, the main steel-making equipment include 2 sets of 50t ultra-high power electric arc furnaces,2 sets of 60t LF refining furnaces,1 set of 60t vacuum degassing refining furnace and 4 sets of 1-20t electroslag re-melting furnaces.
The main forging equipments mainly include:3 sets of 5t electro-hydraulic hammers, 1 set of high-speed forging units of 800t,1600t,2000t and 4500t respectively.
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