About Us
Factory Tour
Quality Control
Contact Us
Request A Quote
Home ProductsForged Steel Bar

Professional Hot Forged Alloy Steel Bar SAE8620/8620H /21NiCrMo2/ DIN1.6523/805

China SHANGHAI UNITE STEEL certification
China SHANGHAI UNITE STEEL certification
I'm Online Chat Now

Professional Hot Forged Alloy Steel Bar SAE8620/8620H /21NiCrMo2/ DIN1.6523/805

Professional Hot Forged Alloy Steel Bar SAE8620/8620H /21NiCrMo2/ DIN1.6523/805
Professional Hot Forged Alloy Steel Bar SAE8620/8620H /21NiCrMo2/ DIN1.6523/805

Large Image :  Professional Hot Forged Alloy Steel Bar SAE8620/8620H /21NiCrMo2/ DIN1.6523/805

Product Details:
Place of Origin: CHINA
Brand Name: UST
Certification: ISO9001
Model Number: DIA 80-1200mm
Payment & Shipping Terms:
Minimum Order Quantity: MOQ: 2-3 ton
Price: FOB USD 1000- 1500/ton
Packaging Details: Plastic plugs in both ends, Hexagonal bundles of max 2,000kg with several steel strips, Two tags on each bundle, Wrapped in waterproof paper, PVC sleeve, and sackcloth with several steel strips.
Delivery Time: Within 4-6 weeks
Payment Terms: L/C, T/T
Supply Ability: 1500 ton/month
Detailed Product Description
Process: EAF+LF+VOD+Forged+Heat Treatment(optional) Surface: Black Or Turned
Materials: Alloy Steel Usage:: Mechanical
High Light:

Forged Round Bar


Forged Steel Bars

SAE8620/8620H/21NiCrMo2/DIN1.6523/805 M20/EN362/SNCM 220H/SNCM 21H professional hot forged alloy steel bar



8620 is a low nickel - chromium - molybdenum medium hardenability, case hardening (carburizing) steel, generally supplied in the as rolled condition with a maximum brinell hardness of 280 (Rc30).
Characterised by good core strength and toughness in small to medium sections with case hardness up to Rc62 when carburized, hardened and tempered.
8620 can also be used (uncarburised) as a high tensile steel, which when suitably hardened and tempered can be utilized for various applications requiring good tensile strength and reasonable toughness.
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.
8620 (carburized) 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.



AISI 8620 is a common, carburizing alloy steel used for a variety of medium-strength applications including gears, camshafts, fasteners, and chains/chain pins. Flexibility in hardening treatments allow optimization of case/core properties. Typical uses are: Arbors, Bearings, Bushings, Cam Shafts, Differential Pinions, Guide Pins, King Pins, Pistons Pins, Splined Shafts, Ratchets, Sleeves etc..


Related Specifications

Australia AS 1444-1996-8620/8620H

Germany W.Nr 1.6523 DIN 21NiCrMo2

Great Britain BS970: PART 3: 1991 805 M20

BS970: 1955 - EN362

Japan JISG 4052 SNCM 220H


U.S.A. SAE 8620 AISI 8620

ASTM A29/A29M 1991 8620

UNS G86200

AMS 6274 , AMS 6274G , AMS 6276 , AMS 6276C , AMS 6277 , AMS 6277A ,

ASTM A322 , ASTM A331 , ASTM A505 , ASTM A513 ,

MIL SPEC MIL-S-16974 ,

SAE J404 , SAE J770 ,

UNS G86200

France: AFNOR 20 NCD 2 , AFNOR 22 NCD 2

Italy: UNI 20 NiCrMo 2


Chemical Composition(%):

Carbon 0.17-0.23

Silicon 0.10-0.40

Manganese 0.60-0.95

Nickel 0.35-0.75

Chromium 0.35-0.75

Molybdenum 0.15-0.25

Phosphorous 0.04 max

Sulphur 0.04 max


Process: EAF+LF+VOD+Forged+Heat Treatment(optional)



Hot Forged: Dia 80 mm -1200mm



Black, Peeled (K12), Cold Drawn, Turned & Polished (H10, H11), Precision Ground (H9, H8)


Test: Ultrasonic test according to SEP 1921-84


Heat to 1150 oC and hold until temperature is uniform throughout the section. Soaking time at forging temperature should be as short as possible to avoid heavy scaling and excessive grain growth. This will vary depending on furnace conditions but 15 minutes per 25 mm of section may be used as a guide.Do not forge below 850 oC.
Following completion of forging operation, work piece should be cooled as slowly as possible in sand or dry lime etc.
Note: Case hardening steels due to their low carbon content are less susceptible to cracking than medium or high carbon steels, and may therefore be heated and cooled more rapidly.


8620 in the as rolled as supplied condition, has very good machinability and all operations such as turning, drilling, milling and tapping etc. can be carried out satisfactorily as per machine manufacturers recommendations for suitable tool type - feeds and speeds.

8620 is readily weldable in the as rolled as supplied condition. Following welding, the work piece immediately upon cooling to hand warm should be stress relieved at 630 oC - 650 oC if possible.
N.B. Welding in the carburized and heat treated condition is not recommended.
Welding Procedure
Welding of 8620 should always be carried out using low hydrogen electrodes - please consult your welding consumables supplier.

Contact Details

Contact Person: Anndy

Tel: +8615502127172

Send your inquiry directly to us (0 / 3000)