Bohler-Uddeholm M238 VMR® P20 Plastic Lens Mold Steel

Login to see your most recently viewed materials here. Or if you don't have an account with us yet, then click here to register.

Bohler-Uddeholm M238 VMR® P20 Plastic Lens Mold Steel (discontinued **)
Categories:	Metal; Ferrous Metal; Tool Steel; Mold Steel
Material Notes:	M238 VMR is a vacuum arc remelted, hardened and tempered plastic mold steel with excellent cleanliness for best polishability ideal for lens mold tooling. The hardness is consistent over the entire cross-section of the steel block, even in large sizes, due to the addition of nickel. Minimum gas contents Reduction of trace elements such as Pb, Bi, Te, As, Sn, Sb Minimum microsegregations at the center of ingot Low susceptibility to the formation of freckles (segregation) Highly precise chemical analysis Applications: Lens mold tooling, mold carrier frames for plastic molds, components for general mechanical engineering and tool manufacture where highest polishability and fatigue strength are required.
Vendors:

Available Properties

Density
Hardness, Rockwell C, without tempering
Tensile Strength, Ultimate, at HRC 54
Modulus of Elasticity
Electrical Resistivity
CTE, linear
CTE, linear
CTE, linear
CTE, linear
CTE, linear
CTE, linear
CTE, linear
Specific Heat Capacity
Thermal Conductivity
Thermal Conductivity
Thermal Conductivity
Thermal Conductivity
Thermal Conductivity
Carbon, C
Chromium, Cr
Iron, Fe, As Balance
Manganese, Mn
Molybdenum, Mo
Nickel, Ni
Silicon, Si

Property Data

This page displays only the text
of a material data sheet.

To see MatWeb's complete data
sheet for this material (including
material property data, metal
compositions, material suppliers,
etc), please click the button below.

Manufacturer Notes:
none

Category Notes
none

**
Materials flagged as discontinued () are no longer part of the manufacturer’s standard product line according to our latest information. These materials may be available by special order, in distribution inventory, or reinstated as an active product. Data sheets from materials that are no longer available remain in MatWeb to assist users in finding replacement materials.

Users of our Advanced Search (registration required) may exclude discontinued materials from search results.

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

	Advertise with MatWeb!
	Data sheets for over 180,000 metals, plastics, ceramics, and composites.
	HOME • SEARCH • TOOLS • SUPPLIERS • FOLDERS • ABOUT US • FAQ • LOG IN

System Message