8620 Steel Bar Supplier
8620 (Forged Bar Material)
Cromdane Steel, Inc. distributes quality AISI 8620 alloy steel rods, forged bar and forgings. Our on-hand inventory is managed by our ISO Certified quality management system and is available for immediate saw cut
We meet stringent customer specifications with short lead times and quick turnarounds.
8620 Forged Bar Characteristics
AISI 8620 is a Low alloy chromium, molybdenum, Nickel steel that is case-hardened which will result in good wear characteristics. This alloy is typically used in carburized condition (case hardening) for gears, ring gears, shafts and crankshafts
Call us today at 713-896-8295 to purchase 8620 alloy steel forged bar or forgings.
Contact a Specialized 620 Alloy Steel Rod Expert Today
The following is an overview of our primary inventory, in-house available for immediate saw cut/delivery. We have steel arriving on regular intervals, so if you do not see what you need, give us a call and let us help you meet your manufacturing/delivery needs.
Industries That Rely on 8620 Alloy Steel
Because AISI 8620 steel's carburized case delivers excellent wear resistance while its nickel-molybdenum core stays tough, this grade is specified across several of the industries Cromdane Steel, Inc. serves:
- Automotive & Transportation: 8620 is a standard choice for gears, shafts, camshafts, and crankshafts, where a hard wear surface and a fatigue-resistant core are both required.
- Oil & Gas: Downhole tooling and drivetrain components benefit from 8620's combination of case hardness and core toughness in demanding, high-cycle environments.
- Mining: Gears and shaft components in heavy mining and tunnel-boring equipment rely on 8620's wear resistance to withstand constant abrasive loading.
- Power Generation: Turbine and generator drivetrain components use 8620 where surface durability must be paired with reliable core strength.
- Tool & Die: Dies and punches that see repeated wear cycles are often specified in 8620 for its case-hardening response.
- Agriculture: Gears and shafts in agricultural machinery use 8620 to handle repetitive wear from field conditions.
- Military: Fasteners and gear components in defense equipment specify 8620 for its balance of toughness and surface hardness.
Cromdane Steel, Inc. stocks 8620 alloy steel bar ready for saw cutting to support these industries, and sources custom 8620 forgings through our vendor network for parts that require a shape or grain flow that can't be achieved from bar stock.
Why Choose Cromdane Steel for 8620 Alloy Steel Bar
Cromdane Steel, Inc. has built its reputation as a trusted steel bar distributor by focusing on what matters most to engineers and procurement teams: verified material, reliable stock, and fast turnaround.
Every bar in our AISI 8620 steel inventory is backed by full traceability and material test reports under our ISO 9001:2015 certified quality system, so you know exactly what you're getting before it ships. We maintain on-hand 8620 steel round bars and 8620 alloy steel rods ready for immediate saw cutting, so you are not waiting on mill lead times for standard sizes. Beyond stocking bars, we offer value-added services including saw cutting and machining to help bring material closer to your finished specification.
When a project calls for a custom 8620 forging instead of bar stock, we source it through our established vendor network, so you have a single point of contact for both stocked bar and custom forged parts, rather than managing separate suppliers for each.
Whether you need 8620 bar cut to length or a sourced custom forging, our team can help you find the right fit for your specification. Request a quote today, or contact us to discuss your project.
Frequently Asked Questions About 8620 Steel
Properly carburized AISI 8620 steel typically reaches 58–63 HRC at the case, while core hardness varies more widely (roughly 30–42 HRC) depending on section size and quench severity. Because nickel and molybdenum improve hardenability, 8620 retains useful core toughness even in larger diameters where shallower-hardening grades show inconsistent through-hardness.
8620 machines more easily than 4140 in its annealed or normalized state, with a machinability rating of roughly 60–66% relative to B1112, thanks to its lower carbon content. Once carburized, the hardened case requires grinding rather than conventional cutting, so most machining is scheduled before heat treatment.
Cromdane Steel, Inc. maintains hot-rolled and cold-drawn 8620 steel round bars and 8620 alloy steel rods in commonly specified diameters, ready for immediate saw cutting. Because inventory levels shift with mill availability, we recommend confirming current size and length on hand before finalizing a spec, especially for larger diameters used in gear blanks. As one of the established 8620 steel bar suppliers, we can help confirm what's currently on hand for your project.
Custom forgings are typically specified when a part's grain flow, cross-section, or near-net shape can't be achieved efficiently from a bar, such as large gears or shafts with integral flanges. Cromdane Steel, Inc. sources these custom 8620 forgings through our vendor network when a project falls outside standard bar-stock capability.