Commercial Production · Alloy Steel · Nickel-Chromium-Molybdenum Case-Hardening Steel Bar

8622 Round Steel Bar

A case-hardening alloy similar to 8620 with a controlled carbon range for gears and wear-critical components.

Purchase to your specification

8622 for production and repeat supply.

Buying 8622 for machining, forging, or component production? Send your dimensions, condition, and quantity per order. For repeat supply, include annual usage and release timing, or attach your existing RFQ.

Size & supply condition: State the diameter, length, and required condition. We confirm the available supply route against your order.
Finished to your requirement: Include production cutting, surface finish, tolerances, and any required heat treatment. Processing is reviewed with the material requirement.
Documentation & delivery: Specify mill certifications, testing, traceability, delivery date, and ship-to location so they can be included in the quote.

A grade name is the starting point. The governing specification, condition, dimensions, and testing define the material to be quoted.

Read the 8622 material profile ↓

Quote Desk

Your 8622 requirement

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Material / Grade

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Quantity / WeightCommercial requirements from 3,000 lb through truckload quantities.

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8622 Round Bar: Material Profile

8622 is specified when the drawing or customer standard calls for its particular chemistry and carburizing response rather than generic 8620.

Confirm the exact specification, hardenability practice, condition, case requirements, and final mechanical properties.

Purchase to the controlling ASTM, SAE, AMS, or customer specification. Section size, supply condition, mechanical properties, surface limits, testing, and heat/lot traceability can change the acceptable material and processing route.

Key Characteristics

Excellent case-hardening response
Good core toughness
Good fatigue resistance
Good machinability before heat treatment

Common Applications

Automotive gears
Pinions and shafts
Bushings and sleeves
Power-transmission components

Specification Requirements

Identify the governing specification and revision, product form, section size, condition, mechanical properties, testing, and certification requirements. The purchase specification and material certification govern the order.