Commercial Production · Alloy Steel · Chromium-Vanadium Spring Steel Bar

6150 Round Steel Bar

A chromium-vanadium alloy spring steel used for high-strength parts exposed to repeated flexing, impact, and fatigue.

Purchase to your specification

6150 for production and repeat supply.

Buying 6150 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 6150 material profile ↓

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Your 6150 requirement

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

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6150 Round Bar: Material Profile

6150 combines hardenability with vanadium-assisted grain refinement for demanding spring and load-bearing applications.

Section size, starting condition, heat-treatment cycle, surface quality, and final mechanical properties are critical order details.

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

High fatigue strength
Good toughness
Good hardenability
Strong shock resistance

Common Applications

Coil and leaf springs
Torsion bars
Heavy-duty shafts
Automotive and agricultural 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.