Name: 20mmx60mmx1000mm GROUND FLAT STOCK
Brand: Indexa
SKU: IND4134305S
Price: 134.93 EUR
Availability: OutOfStock

Ground Flat Stock

Also known as tool steel, ground flat stock is the high-quality choice for tool production. Available from Cromwell in a wide variety of sizes, we're proud to use Indexa® as our supplier of choice.

## What is ground flat stock?
Much like silver steel, ground flat stock is a high carbon alloy supplied in annealed condition and is ground to precise tolerances.

## Why ground flat stock?
The oil-hardening tool steel delivers extremely durable tools. Thanks to its high stability, it has wear-resistant properties and maintains a good cutting edge.

## When is ground flat stock used?
Used mainly for the engineering of tools, this medium alloy is used to create punches, broaches, gauges, and tools used for precision measuring to name but a few.

## Ground flat stock types
There are 3 types of ground flat stock, defined by the metal hardening type, these are named according to their series. O series describes oil-hardening metal and A series covers air-hardening alloys. All are cold working types that can be machined and shaped without the need for heating.

**• BO1**   -   Used for cutting tools and gauges

**• A2**   -   General purpose medium alloy, mainly used for cutting tools and gauges

**• A6**   -   General purpose medium alloy, used for tool making and gauges

## Ground flat stock jargon buster
We want to keep it simple, so we've broken down the key standard for ground flat stock to help you navigate the range a little better.

*What does the standard BS 4659:1970 BO1 mean?*

BS 4659:1970 BO1 specifies the technical requirements of tool steel, including the chemical and mechanical properties.

Let's break it down...

• BS - This is the abbreviation for British Standard

• 4659 - This is the assigned legislation number

• 1970 - This is the year this standard was updated

• BO1 - This is the type of metal to which the British Standard applies. In this case, it covers oil-hardening tool steel

### FAQs
*What does precision ground mean?*

Let's break it down. 'Precision' refers to the quality of the steel and the fine precision engineering process. 'Ground' describes how the bar faces are polished to precise tolerances.

*How do you harden ground flat stock?*

The hardening process requires the initial slow heating of the metal at a constant temperature of between 300°C and 500°C. The temperature is then raised to between 780°C and 820°C (the hardening temperature) before being quenched.

Browse Cromwell's collection of Ground Flat Stock with next day delivery available.

Ground Flat Stock - All sizes available | Cromwell Tools

Materials, Maintenance & Standard Parts

Materials

Indexa

Precision ground flat stock supplied as W1.2510 - 01 Tool Steel (100MnCrW1), in a wide range of Metric sizes. Oil hardening gauge plate supplied in annealed condition. It offers good durability, gives excellent wear resistance and holds a good cutting edge.
An excellent general purpose grade. Applications include medium run dies, press tools, drawing punches, broaches, bushings, lathe centres, chuck jaws, master cavity sinking hobs, paper cutting machine knives, plug gauges, thread gauges and precision measuring tools. It is also used in applications such as cams, cloth cutters, cold taps, reamers, trimmer dies, tube expander rolls, plastic moulds and woodworking cutters, collets, cutting hobs and strip slitting cutters.
Top & bottom surfaces supplied in ground condition.
Both ends supplied sawn cut.

Inch - Preferred Size List
Generally available from stock.
All sizes listed are 18" long.

Tolerances
Thickness: -0/+.002"
Width: -0/+.008"
Length: -0/+.197"
Square Bars: -0/+.002"


Material Specification
DIN Grade..1.2510 (100MnCrW1)
Nearest AISI Standard 01
Hardness 230 HB
Surface Roughness max. 3.2µm
Chemical Composition
C Carbon 0.90 - 1.05%
Si Silicon .............. 0.15 - 0.35%
Mn Manganese 1.00 - 1.20%
Cr Chromium . 0.50 - 0.70%
V Vanadium 0.05 - 0.15%
W Tungsten 0.50 - 0.70%
P Phosphorous max. 0.035%
S Sulphur max. 0.035%

Inch - Preferred Size List
Generally available from stock.
All sizes listed are 18" long. 

Applications	Bushings Drawing Punches Lathe Centres Paper Cutting Machine Knives Plastic Moulds Precision Measuring Tools Thread / Plug Gauges Woodworking Knives
Brand	Indexa
Chemical Composition	Carbon (C) 0.90-1.05% Chromium (Cr) 0.50-0.70% Manganese (Mn) 1.00-1.20% Phosphorous (P) max.0.035% Silicon (Si) 0.15-0.35% Sulphur (S) max.0.035% Tungsten (W) 0.50-0.70% Vanadium (V) 0.05-0.15%
EAN	5036140418820
ECLASS Code	35010311
Length	1000
Length Tolerance	-10
Standards Met	DIN Grade 1.2510 (100MnCrW1)
Thickness	20mm
Thickness Tolerance	-0.05
UNSPSC Code	31231116
Width	60mm
Width Tolerance	-0.2

Indexa

20mmx60mmx1000mm GROUND FLAT STOCK

OUT OF STOCK

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Chemical Composition

EAN

ECLASS Code

Length

Length Tolerance

Standards Met

Thickness

Thickness Tolerance

UNSPSC Code

Width

Width Tolerance

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