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AISI 8620

Buy Top Quality AISI 8620 Round Bar at Ferrite Structural Steels Pvt Ltd. – India’s Leading Supplier, Manufacturer and Exporter of MS Round Bars.

AISI 8620

AISI 8620 round bars are low-alloy nickel, chromium, and molybdenum case-hardening steel known for their core strength, toughness, and wear resistance. This steel is popular for its ability to attain a good balance of strength and toughness after heat treatment, making it an excellent choice for applications involving high stress and high impact. Commonly used in the automotive and aerospace industries, AISI 8620 is ideal for making gears, high-strength bolts, and other critical components where wear resistance and strength are paramount.

Ferrite Structural Steels Pvt Ltd. stands as a major manufacturer and supplier of AISI 8620 round bars, known for their consistent quality and reliability. The company ensures that each product adheres to stringent international standards, delivering performance that industries rely on. With advanced manufacturing processes and a commitment to innovation, Ferrite Structural Steels Pvt Ltd. provides a range of steel products that meet the diverse needs of its clients, making them a trusted name in the steel manufacturing sector. Their dedication to maintaining high standards of customer service and product excellence solidifies their reputation as a leading supplier in the market.

AISI 8620 Specifications

Product Name AISI 8620
Brand Ferrite Structural Steels Pvt. Ltd.
Minimum Order Quantity 1 Ton
Material Mild Steel
Finish Hot-rolled, galvanized, or as specified by customer

AISI 8620 Size Chart

Size (mm) Average Weight (KG/MTR) Average Weight (KG/FT)
10 0.62 0.18
12 0.9 0.3
14 1.2 0.4
16 1.6 0.5
18 2 0.6
20 2.5 0.8
22 3 0.9
24 3.56 1.08
25 3.9 1.2
28 4.8 1.5
30 5.55 1.69
32 6.3 1.9
34 7.14 2.18
36 8 2.44
40 9.9 3
45 12.49 3.81
50 15.4 4.7
56 19.34 5.89
60 22 6.8

 

AISI 8620 Equivalent grades

Standard UNS WERKSTOFF NR. BS 970 UNI JIS EN name EN #
AISI / SAE 8620 – 21NiCrMo22, 21NiCrMo2 805A20, 805M20 20NiCrMo2 SNCM 200 (H) 20NiCrMo2-2 1.6543, 1.6523

 

AISI 8620 Chemical composition

  C Mn Si S P Cr Ni Mo
SAE – 8620 .18 – .23 .70 – .90 .20 – .35 0.04 0.04 .40 – .60 .40 – .70 .15 – .25

 

AISI 8620 Mechanical Properties

Mechanical Properties 30 HRC 40 HRC 45 HRC
Poisson’s Ratio   0.282  
UTS(ksi) 147 183 225
V-Notch Charpy Impact 80 45 21
Elongation 21 18 12
YS 0.2% offset 134 171 205
Young’s Modulus   30900 (ksi)  
RA% 64 60 50

Key Features and Benefits

  1. Alloy Composition: AISI 8620 is a low-alloy steel containing nickel, chromium, and molybdenum, which enhances its core strength, toughness, and wear resistance.
  2. Case Hardening Capability: This steel is known for its excellent case hardening characteristics, which provide a hard exterior layer while maintaining a tough, ductile core.
  3. Good Machinability: Before case hardening, AISI 8620 exhibits good machinability, allowing for easier shaping and forming of components.
  4. High Core Strength and Toughness: The alloying elements ensure that the core retains high strength and toughness after heat treatment, essential for withstanding high stress and impact.
  5. Weldability: Offers good weldability with preheating and proper heat treatment post-welding, expanding its versatility in applications.
  6. Durability: The combination of a hard surface and a tough core results in parts that are highly durable and capable of withstanding harsh operational environments.
  7. Enhanced Wear Resistance: The hard outer surface significantly enhances wear resistance, making it ideal for parts that must endure heavy and repeated use.
  8. Cost-Effective Manufacturing: The good machinability of AISI 8620 reduces manufacturing time and tool wear, making the production process more cost-effective.
  9. Reliability in Performance: AISI 8620’s properties ensure reliable performance under various loading conditions, contributing to the overall safety and efficiency of the machinery.

Applications of AISI 8620 Bar

Automotive Industry:

  • Gears and Clutches: AISI 8620 is commonly used in the production of gears, clutches, and other drivetrain components in automotive applications due to its excellent strength and wear resistance.
  • Shafts and Crankshafts: Its ability to withstand fatigue makes it suitable for critical automotive parts like shafts and crankshafts that require high endurance.

Aerospace Industry:

  • Landing Gear Components: The high strength and toughness of AISI 8620 make it ideal for manufacturing parts of the landing gear systems in aircraft.
  • Gear Systems: Used in the production of gear systems that require durability and resistance to impact and stress.

Tool and Die Making:

  • Bushings and Bearings: AISI 8620 is used to manufacture bushings and bearings that benefit from its wear resistance and strength.
  • Specialized Tooling: Ideal for tooling that requires a balance of toughness and wear resistance.

Oil and Gas Industry:

  • Downhole Tooling: Used in the production of tools used in drilling and exploration, where materials must withstand abrasive environments.
  • Couplings: Utilized in making couplings and other components that connect sections of pipe and other equipment in oilfield services.

Manufacturing:

  • Pinions and Pistons: AISI 8620’s properties make it suitable for high-stress components like pinions and pistons in various machines.
  • Heavy-Duty Fasteners: Used in the production of heavy-duty fasteners that are exposed to high stress and must resist shearing and deformation.
FAQs — AISI 8620 Round Bars

AISI 8620 Round Bars: Frequently Asked Questions

Straight answers on sizes, thickness, weight, grades, MTC, pricing and ordering — so your enquiry is specification-ready before you send it.

01
What is AISI 8620 Round Bars?
AISI 8620 Round Bars are low-alloy carburising steel round bars used for a hard case and tough core. The exact diameter, grade, standard, supply condition and intended use must be stated because the commercial product name alone does not establish chemical, mechanical, dimensional or heat-treatment requirements.
02
What are the main applications of AISI 8620 Round Bars?
Common applications include gears, shafts, pins, bushings and transmission components. Suitability depends on the component design, loads, environment, machining allowance, heat treatment and governing code. Final selection must follow the approved drawing, BOQ, end-user specification and responsible engineer’s approval.
03
Which diameters are listed for AISI 8620 Round Bars?
The live round-bar chart lists 10, 12, 14, 16, 18, 20, 22, 24, 25, 28, 30, 32, 34, 36, 40, 45, 50, 56 and 60 mm. These published entries are not a guarantee of current stock. Confirm the exact diameter, grade, length, condition and quantity, particularly when a machining drawing requires an unlisted size or minimum clean-up allowance.
04
How should I specify the diameter and tolerance for AISI 8620 Round Bars?
State the nominal diameter in millimetres, applicable diameter tolerance, ovality if relevant, straightness and surface condition. For machined parts, add the finished component size and machining allowance. Bright, peeled, ground and hot-rolled bars may have different dimensional expectations.
05
What standard lengths are available for AISI 8620 Round Bars?
The reviewed page does not publish a fixed length range. Availability should be confirmed for the requested diameter, grade and quantity. State exact or random length, permissible tolerance, cut-length schedule, end condition and whether each piece must be identified to a drawing item.
06
How is AISI 8620 Round Bars weight per metre calculated?
For a solid steel round bar, theoretical weight in kg/m is approximately diameter squared x 0.006165, using nominal dimensions and a typical steel density. Actual or invoiced weight may differ because of diameter tolerance, density, scale, length and the agreed commercial basis.
07
Can I get a AISI 8620 Round Bars weight chart?
Yes. The live page provides average kg/m and kg/ft values for listed diameters. Use them for estimation, then confirm the quotation basis and applicable dimensional tolerances. For alloy or special-condition material, ask whether the supplier uses theoretical or actual weighment.
08
What is the AISI 8620 Round Bars price per kg?
The price per kg requires a dated quotation and varies with grade, diameter, quantity, supply condition, finish, testing, cutting, packing, freight and taxes. Alloy surcharge and heat-treatment condition can be important for engineering grades. Send a complete specification for a comparable rate.
09
How is the AISI 8620 Round Bars price per tonne determined?
Price per tonne depends on the exact grade and standard, diameter mix, bar length, total tonnage, condition, certification, inspection and destination. Confirm whether cutting, heat treatment, testing, packing, freight and GST are included and check the quotation validity.
10
What is the MOQ for AISI 8620 Round Bars?
The live page states a minimum order quantity of 1 tonne. Actual order acceptance remains subject to the required diameter, grade, condition and availability. For mixed-diameter orders, give the piece count or weight for each line item so every size can be reviewed.
11
Is AISI 8620 Round Bars available from ready stock?
Stock must be confirmed for the exact diameter, grade, standard, length, finish, condition and quantity. A live product page or size chart does not establish immediate availability. State any mill or make preference, MTC requirement, inspection plan and required delivery date.
12
Can an MTC be supplied with AISI 8620 Round Bars?
Request the mill test certificate at enquiry stage and state the required document type. It should identify the material, heat or batch, grade, standard and reported chemistry and mechanical results where applicable. Heat-treatment condition, hardness and traceability requirements should be agreed before ordering.
13
What case-hardening details are required for this round bar?
State carburising or carbonitriding route, effective case depth, surface hardness, core hardness or strength, distortion allowance and final grinding requirement. Case depth, surface hardness, core properties and heat-treatment route belong in the component specification. These are component-level requirements, not guaranteed solely by the raw-bar grade.
14
Can AISI 8620 Round Bars be cut, machined, threaded or heat treated?
Processing can be reviewed against the drawing, grade, condition and quantity. Provide cut lengths, tolerances, thread details, machining allowance and required heat treatment or hardness. Final component properties cannot be guaranteed from the bar designation alone; the approved manufacturing route controls the result.
15
Can AISI 8620 Round Bars be replaced with an equivalent grade?
Do not substitute from a web equivalence table alone. Compare full chemistry limits, mechanical properties, diameter-dependent requirements, delivery condition, hardenability, impact quality, heat treatment and certification. Any alternative requires written approval from the responsible engineer or end user before supply.
16
Can I buy AISI 8620 Round Bars from a supplier in Mumbai or Navi Mumbai?
Ferrite lists its head office in Mumbai and a facility address at Kalamboli, Navi Mumbai. Provide delivery postcode, longest length, total tonnage, unloading constraints and required date so availability and logistics can be reviewed for Mumbai, Navi Mumbai and Maharashtra.
17
Can AISI 8620 Round Bars be supplied across India?
The website states nationwide supply. India-wide enquiries should include the consignee postcode, grade, diameter, length, tonnage, packing and delivery schedule. Long-bar freight can materially affect landed price, so compare offers on the same ex-works or delivered basis.
18
Does Ferrite handle export enquiries for AISI 8620 Round Bars?
Export requirements can be reviewed against the requested specification and quantity. Provide destination port and country, Incoterm, grade, standard, diameter, length, tonnage, condition, packing, MTC and inspection requirements. Shipping programme and documentation must be confirmed for the specific order.
19
How should quotations from AISI 8620 Round Bars suppliers be compared?
Compare the exact grade, standard, diameter tolerance, length, condition, origin or make if specified, MTC, inspection, cutting, packing, freight, taxes and delivery basis. A lower rate is not comparable if the offered condition, certification or heat-treatment scope differs.
20
What details are needed for a fast AISI 8620 Round Bars quotation?
Send product name, complete grade and standard, diameter, length, piece quantity and total tonnage. Add finish and delivery condition, tolerance, make preference, MTC, inspection or ultrasonic testing, cutting drawing, delivery postcode or destination port, Incoterm and required delivery date.

Why Choose Ferrite’s AISI 8620 Round Bar?

Choosing Ferrite’s AISI 8620 Round Bars means selecting a product known for its reliability, durability, and performance in challenging environments. At Ferrite Structural Steels Pvt Ltd, we specialize in producing high-quality AISI 8620 Round Bars using meticulous manufacturing processes that adhere to strict quality standards. Each bar undergoes rigorous testing to ensure it meets our high standards, guaranteeing that our customers receive only the best products.

We are committed to providing not only top-quality steel but also exceptional customer service. Our team is dedicated to assisting you in finding the perfect steel solutions for your projects, ensuring that all your specifications and requirements are met efficiently. Contact us today to discuss your needs and request a quote. We are here to support your projects with our reliable and high-performing products.

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