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ML00084 - Mar.2020

Walrus Tool Steel

Micrographic detail of the tool steel, in the longitudinal section of the part. The material presented a uniform structure, tempered martensite, with small secondary carbides. The hardness in the section is 59 HRc.

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Micrographic detail of the tool , in the of the part. The material presented a , , with small . The hardness in the section is 59 .
M

Material

High Carbon Tool Steel
  • ASTM A 681 grade O1
  • UNS T31501
Ds

Description

The interchangeable walrus tool was at the end of the life. It presented a good performance in a pull in winch and was analyzed in order to be replaced.

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Chemistry (% in weight)

Product Analysis

1.0C; 1.1Mn; 0.27Si; 0.023P; 0.004S; 0.55Cr; 0.08Ni; 0.08V; 0.64W.

Associated Images
Aspect of the serrated walrus tool, interchangeable, that was removed at the end of its life. Dimensions of 1" thick, 2" width, 3" long.
419
VIEW
ML00084 / Mar.2020
Walrus Tool Steel
M - High Carbon Tool SteelP - ForgingAp - Mechanical IndustryCd - Removed From Service
Cm - Aspect Before AnalysisDf - General View
Micrography of the tool steel, in the longitudinal section of the part. The material presented a uniform structure, tempered martensite. The tempering was in low temperature since the hardness is high (58 HRc at the surface).
87
VIEW
ML00084 / Mar.2020
Walrus Tool Steel
M - High Carbon Tool SteelP - ForgingAp - Mechanical IndustryCd - Removed From Service
Cm - Nital Etched Micrography by OMDf - Uniform Structure
Micrographic detail of the tool steel, in the longitudinal section of the part. The material presented a uniform structure, tempered martensite, with small secondary carbides. The hardness in the section is 59 HRc.
73
VIEW
ML00084 / Mar.2020
Walrus Tool Steel
M - High Carbon Tool SteelP - ForgingAp - Mechanical IndustryCd - Removed From Service
Cm - Nital Etched Micrography by OMDf - Martensite