Carbon and Alloy Tool Steels High Speed Steel Consistently Uniform 1000045159

8/17/2019 Carbon and Alloy Tool Steels High Speed Steel Consistently Uniform 1000045159

1/165

8/17/2019 Carbon and Alloy Tool Steels High Speed Steel Consistently Uniform 1000045159

2/165

8/17/2019 Carbon and Alloy Tool Steels High Speed Steel Consistently Uniform 1000045159

3/165

8/17/2019 Carbon and Alloy Tool Steels High Speed Steel Consistently Uniform 1000045159

4/165

http://www.forgottenbooks.com/redirect.php?where=fb&pibn=1000045159 http://www.forgottenbooks.com/redirect.php?where=it&pibn=1000045159 http://www.forgottenbooks.com/redirect.php?where=es&pibn=1000045159 http://www.forgottenbooks.com/redirect.php?where=fr&pibn=1000045159 http://www.forgottenbooks.com/redirect.php?where=de&pibn=1000045159 http://www.forgottenbooks.com/redirect.php?where=co.uk&pibn=1000045159 http://www.forgottenbooks.com/redirect.php?where=com&pibn=1000045159

8/17/2019 Carbon and Alloy Tool Steels High Speed Steel Consistently Uniform 1000045159

5/165

8/17/2019 Carbon and Alloy Tool Steels High Speed Steel Consistently Uniform 1000045159

6/165

8/17/2019 Carbon and Alloy Tool Steels High Speed Steel Consistently Uniform 1000045159

7/165

LUDLUM

STEEL

COMPANY

Carbon and

Alloy

Tool

Steels

Established

^^TLU

DLU

M^ ^

1854

HIGH

SPEED

STEEL

CONSISTENTLY

UNIFORM

General Offices and

W6rks

WATERVLIET,

N. Y.

byGoogk

8/17/2019 Carbon and Alloy Tool Steels High Speed Steel Consistently Uniform 1000045159

8/165

General

Offices

WATERVLIET,

NEW YORK

Branch

Offices:

New York

New

York

City

Massachusetts Boston

Pennsylvania

Philadelphia

Pittsburgh

Ohio

Cleveland

Cincinnati

Illinois

Chicago

Italy

Society, I. A.

F.

A.

Genoa

Digitized

byGoogk

8/17/2019 Carbon and Alloy Tool Steels High Speed Steel Consistently Uniform 1000045159

9/165

263320

(.^^32/^

FEB

21

1928

TIDH

INTRODUCTION

Digitized

byGoogk

8/17/2019 Carbon and Alloy Tool Steels High Speed Steel Consistently Uniform 1000045159

10/165

Copyright,

1918

LUDLUM

STEEL

CX)MPANY

Watervlibt, Nbw York

Digitized

byGoogk

8/17/2019 Carbon and Alloy Tool Steels High Speed Steel Consistently Uniform 1000045159

11/165

INTRODUCTION

The Ludlum Steel

Company

is

one

of

the

oldest

established

high

grade

tool

steel

mills in

America,

founded in

the

year

1854.

Our

Pompton

brand tool

steel

is

probably

one

of

the

most

widely

known

high

grade

American

steels.

Our

mill

has

grown

from

a

comparatively

small

crucible

plant

to

one

of the

larg-st

high grade

tool

steel

producing

mills in the

country.

We

make

nothing

but

high

grade

tool

steel,

therefore

our

melters

and

rolling

mill

men are

highly

skilled in

the

expert

handling

of

this

special

steel.

The

crucible

process

is

one

of

the oldest

methods

of

making high grade

steel. The

product

is

governed by

the

raw

material

used,

therefore

even

though

the

highest

form of

skilled control be

applied

to

the

melting

and

working

of

this

steel,

it is of

no

avail

if

the

raw

material

contains

some

 unlooked

for

im-uritie

That

is

one

of the

reasons

why

various

melts

of

crucible

steel,

made

from

the

same

high grade

raw

material,

differ

very

largely

in their

work

and

efficiency.

The

Ludlum

Steel

Company,

recognizing

this

very

serious

defect

in the

highest

grade

crucible

steel,

started

to

investigate

methods

of

melting

wherein

full

refining

could

be

accomplished,

the

crucible

process

being

purely

one

of

remelting.

The basic and acid

open

hearth

process

produces

a

steel

which is

partly

refined,

but does

not

go

far

enough.

It

is

possible

when

the

same

high

Digitized

byGoogk

8/17/2019 Carbon and Alloy Tool Steels High Speed Steel Consistently Uniform 1000045159

12/165

te

STAB

IjI

S HEX)

 ^udl^^

.

.

.

1854

.

.

.

grade

charge

is

used

as

in

the

crucible

process,

to

produce high grade

steel

in the

open

hearth

furnace,

but

this

process

has

many

variables and

for

that

reason,

instead

of

continuously

getting

a

reliable

high

grade

product,

many

mysteriousthings

happen

to

open

hearth

melts,

which

are

undoubtedly

due

to

occluded

gases.

The chemical

analysis

of

high

grade

cru-ible

steel

can

be

duplicated

in

the

open

hearth but

the

quality

of

steel is

distinctly

ifferent.

Twenty

years

ago,

electric

furnaces

were

being

substituted

as

a

very

probable

means

of

eradicating

the

dangerous

gases

which

are

to

be

found

in

solution

in

steel. We

were

one

of

the

pioneers

in

this

investigation

nd

we

have

experi-ented

with

practically

very

known

t5T)e

of

electric

furnace

and

have

developed

a

special

form of

electric

crucible

furnace

wherein

we

get

all

of

the

benefits

common

to

the

crucible

and the

full

refining

possible

with

the

electric

furnace.

Our

customers

have foxmd that

our

steels

are

purer

and

give

better

results

in

service,

than

any

other

type

of

steel,

whether

it

be

crucible

or

electric.

The

usual

electric

furnace,

of which there

are

perhaps

a

few

hxmdred

in

operation

in

this

coxmtry,

has been

developed

for

quantity

production.

As these

furnaces

produce

a

far

purer

grade

of

steel

than

the

best

open

hearth,

the

opportunities

or

these

furnaces

are

very

great

where

automobile and structural

alloy

steels

are

concerned. These

furnaces

are

therefore

manufac-ured

with

two

ideas

in

view,

quantity

and

quality.

6

Digitized

byGoogk

8/17/2019 Carbon and Alloy Tool Steels High Speed Steel Consistently Uniform 1000045159

13/165

OONSISTENTr^y

UNIFORM

Our

electric

crucible

furnace,

which

is