Specialised Castings Ltd

GREY, DUCTILE, ALLOY IRONS & ALUMINIUM




Ductile Irons
Spheroidal Graphite (SG) Irons

We produce castings in grey cast iron, ductile iron(also known as nodular or SG), austenitic iron, high chromium irons for heat or wear resistance and aluiminium alloys.


Listed on this page are typical examples of the metal specifications that we can produce castings to. This is not an exhaustive list as we can produce castings to international specifications or to individual customer's requirements.

 


We regularly produce castings to individual customers metal specifications and to international specifications.

Please contact us with your requirements.

 




 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ductile Iron (Also called Nodular or S.G. Irons) to BS EN 1563 : 1997

Material Designation
Tensile Strengh (N/mm2) Minimum
0.2% proof stress N/mm2
Elongation %
Predominant Structure
EN-GJS-350-22
350
220
22
Ferrite
EN-GJS-400-18
400
240
18
Ferrite
EN-GJS-400-15
400
250
15
Ferrite
EN-GJS-450-10
450
310
10
Ferrite
EN-GJS-500-7
500
320
7
Ferrite-Pearlite
EN-GJS-600-3
600
370
3
Pearlite-Ferrite
EN-GJS-700-2
700
420
2
Pearlite
EN-GJS-800-2
800
480
2
Pearlite


Ductile Iron to BS EN 1563 : 1997 Classification as a function of hardness
(Applicable only when accepted by the manufacturer and purchaser at the time of acceptance of the order
 
Brinell Hardness Range
Hb
Other Properties (for information only)
Symbol
Number
Rm
N/mm2
Rp0.2
N/mm2
EN-GJS-HB130
EN-JS2010 less than 160
350
220
EN-GJS-HB150
EN-JS2020 130 to 175
400
250
EN-GJS-HB155
EN-JS2030 135 to 180
400
250
EN-GJS-HB185
EN-JS2040 160 to 210
450
310
EN-GJS-HB200
EN-JS2050 170 to 230
500
320
EN-GJS-HB230
EN-JS2060 190 to 270
600
370
EN-GJS-HB265
EN-JS2070 225 to 305
700
420
EN-GJS-HB300(1)
EN-JS2080(1) 245 to 335
800
480
EN-GJS-HB330(1)
EN-JS2090(1) 270 to 360
900
600
Note (1) EN-GJS-HB300 and EN-GJS-HB330 (EN-JS2090) are not recomended for thick section castings
1 N/mm2 is equivalent to 1MPa


DUCTILE IRON (S.G.) : to BS 2789 1985
Grade
Tensile Strength
Elongation
%
Typical Hardness
HB
BS 2789
1961

(Equivalent)
N/mm2 Tonnes/in2
400/18
400
25.9
18
<179
24/17
420/12
420
27.2
12
<212
27/12
500/7
500
32.4
7
170 - 241
32/7
600/3
600
38.9
3
192 - 269
-
700/2
700
45.3
2
229 - 302
42/2

We can also produce Ductile Irons to international specifications or to your own specification
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Grey Cast Irons to BS EN 1561 : 1997

Material Designation
Previous Standard BS1452 1990
Tensile Strengh (N/mm2)
Brinell Hardness
EN-GJL-150
Grade 150
150-200
155-210
EN-GJL-200
Grade 200
200-300
175-260
EN-GJL-250
Grade 250
250-350
195-275
EN-GJL-300
Grade 300
300-400
215-275
EN-GJL-350
Grade 350
350-450
235-275

GREY IRON : to BS 1452 1990

Grade

Tensile Strength

Typical Hardness
HB

BS 1452
1961

(Equivalent)

N/mm2

Tonnes/in2

150

150

10

140 - 200

10

180

180

12

150 - 200

12

220

220

14

160 - 210

14

250

250

17

170 - 240

17

300

300

20

190 - 270

20

350

350

23

200 - 280

23

We also produce Grey Cast Irons to international specifications or to your own specification
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Austenitic Cast Iron BS 3468 1986 (Ni Resist)

Grade
Type
C %max
Si%
Mn%
Ni%
Cr%
Cu%
Nb%
P%
Mg%
F1
Flake Graphite
3.0
1.5-2.8
0.5-1.5
13.5-17.5
1.0-2.5
5.5-7.5
-
0.2max
-
F2
Flake Graphite
3.0
1.5-2.8
0.5-1.5
18.0-22.0
1.5-2.5
0.5max
-
0.2max
-


Typical Physical Properties
Grade
Tensile Strength N/mm2
Brinell Hardness
F1
170 to 240
140 to 220
F2
170 to 240
140 to 220

 

Grade
Type
C %max
Si%
Mn%
Ni%
Cr%
Cu%
Nb%
P%
Mg%
S2W
Spheroidal Graphite
3.0
1.5-2.2
0.5-1.5
18.0-22.0
1.5-2.2
0.5max
0.12-0.2
0.05max
0.06max


Typical Physical Properties
Grade
Tensile Strength N/mm2
0.2% proof stress N/mm2
Elongation %
Brinell Hardness
S2W
370 to 490
210 to 260
7 to 20
140 to 200

We can produce Ni Resist in other grades or to your own specification
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Abrasion Resisting High Chromium Alloys to BS 4844 : 1986

These types of alloys are also suitable for use in solid fuel heating appliancessuch as fireboxes and firebars.
These alloy castings have a much longer life than comparable components cast in traditional grey iron.

Grade
C
Si
Mn
P
S
Ni
Cr
Cu
Mo
2D
2.0 to 2.8
1.0max
0.5-1.5
0.1max
0.1max
2.0 max
22.0 to 28.0
2.0max
1.5max
2E
2.8 to 3.5
1.0max
0.5-1.5
0.1max
0.1max
2.0 max
22.0 to 28.0
2.0max
1.5max

 

Grade
Typical Hardness As-Cast
Mandatory Heat Treated Harsdness HB
Typical Annealed Hardness HB
2D
400
600 min
400 min
2E
450
600 min
450 min

We can produce high Chromium irons in other grades or to your specification
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Aluminium Alloys
We produce Aluminium castings in BS 1490 LM 27 and LM 6 alloys

Chemical Composition

Grade
Cu
Mg
Si
Fe
Mn
Ni
Zn
Pb
Sn
Ti
LM27
1.5-2.5
0.3max
6.0-8.0
0.8max
0.2-0.6
0.3max
1.0max
0.2max
0.1max
0.2max
LM6
0.1max
0.10max
10.0-13.0
0.6max
0.5max
0.1max
0.1max
0.1max
0.05max
0.2max
 

 

Mechanical Properties (Sand Cast)

Grade
0.2% proof stress
(N/mm2)
Tensile Strength
(N/mm2)
Elongation
(%)

Brinell
Hardness
Modulus of Elasticity
(103 N/mm2)
LM27
80-90
140-170
1-4
70-85
71
LM6
60-70
160-190
5-10
50-55
71

 

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Fast - Reliable - Top Quality


© Specialised Castings Ltd, Unit 11, Headswood Mill, Denny, Stirlingshire, FK6 6BL, United Kingdom
Tel: +44 (0)1324 820077 Fax: +44 (0)324 820077 Company Number: SC 220559

E-mail: sales@specialisedcastings.co.uk

Page updated 24-Sep-2012

 

 

 


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