Wear Grade
High-carbon manganese steel round bar for grinding rods and wear-related applications.
65Mn is commonly used where hardness, toughness, and heat-treatment response matter, especially for grinding rods, wear-related rod products, and industrial parts working under abrasion or repeated impact conditions.
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- Grade or equivalent standard
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Buyer Details
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65Mn
Key point
Stable hardness-oriented supply with heat-treatment and processing support.
Suitable for grinding rods, wear-related rod products, and other parts requiring a practical balance of hardness and toughness.
Product Summary
Technical data buyers normally request first.
The summary below presents 65Mn in a clean procurement format for buyers evaluating wear-oriented steel bar applications.
Introduction
65Mn is a high-carbon manganese steel round bar grade widely used for applications requiring higher hardness, good toughness, and reliable heat-treatment response.
It is commonly selected for grinding rods, wear-related rods, springs, and industrial parts where service performance depends on material condition as well as downstream heat treatment.
Equivalent grades
GB
65Mn
JIS
SUP6 / SUP6A
DIN
66Mn4
EN
Detailed source notes 55 more points
High-carbon manganese spring steel equivalents may vary by standard and procurement route
Chemical composition
C
0.62 - 0.70
Si
0.17 - 0.37
Mn
0.90 - 1.20
P
≤ 0.035
S
≤ 0.035
Mechanical properties
Hardness
Heat-treated condition depending on application and process route
Tensile strength
Available according to delivery condition and heat-treatment target
Toughness
Practical balance for wear-related rod applications
Heat-treatment response
Good response for hardness-oriented industrial use
Specifications
Form
Round bar
Diameter
20 - 150 mm
Length
3 - 12 m
Condition
Hot rolled / Heat treated / Cut to length
Surface
Black / Peeled / Processed upon request
Typical applications
Grinding rods for rod mills
Wear-related rod products
Abrasion-oriented industrial parts
Spring and hardness-oriented mechanical components
Industrial applications requiring heat-treatment response and practical toughness
Manufacturing options
Hot rolled bars
Heat-treatment support according to application route
Cut-to-length supply
Peeled or processed supply upon request
Rough machining or semi-finished preparation where required
Inspection points
Chemical composition analysis
Hardness or mechanical verification based on order requirements
Dimensional inspection
Surface condition check
Third-party inspection available on request
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