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Austenitic ductile iron







CHEMICAL analySIS OF CAST IRON

Description of the material Digital
code 		Chemical composition
C% Si% Mn% Ni% Cr% P% Cu%
EN-GJSA XNiCr20-2 EN-JS3011 Max 3 1.5 to 3.0 0.5 to 1.5 18 to 22 1 to 3.5 Max 0.08 Max 0.5
EN-GJSA XNiMn23-4 EN-JS3021 Max 2.6 1.5 to 2.5 4 to 4.5 22 to 24 Max 0.2 Max 0.08 Max 0.5
EN-GJSA XNiCrNb20-2 EN-JS3031 Max 3 1.5 to 2.4 0.5 to 1.5 18 to 22 1 to 3.5 Max 0.08 Max 0.5
EN-GJSA XNi22 EN-JS3041 Max 3 1 to 3 1.5 to 2.5 21 to 24 Max 0.5 Max 0.08 Max 0.5
EN-GJSA XNi35 EN-JS3051 Max 2.4 1.5 to 3 0.5 to 1.5 34 to 36 Max 0.2 Max 0.08 Max 0.5
EN-GJSA XNiSiCr35-5-2 EN-JS3061 Max 2 4 to 6 0.5 to 1.5 34 to 36 1.5 to 2.5 Max 0.08 Max 0.5
EN-GJSA XNiMn13-7 EN-JS3071 Max 3 2 to 3 6 to 7 12 to 14 Max 0.2 Max 0.08 Max 0.5
EN-GJSA-XNiCr30-3 EN-JS3081 Max 2.6 1.5 to 3 0.5 to 1.5 28 to 32 2.5 to 3.5 Max 0.08 Max 0.5
EN-GJSA-XNiSiCr30-5-5 EN-JS3091 Max 2.6 5 to 6 0.5 to 1.5 28 to 32 4.5 to 5.5 Max 0.08 Max 0.5
EN-GJSA-XNiCr35-3 EN-JS3101 Max 2.4 1.5 to 3 0.5 to 1.5 34 to 36 2 to 3 Max 0.08 Max 0.5
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MECHANICAL CHARACTERISTICS  

Description of the material Digital code Tensile strength Rm N/mm2 Yield strength  0.2% Rp0.2% N/mm2 Elongation A% Average value energy shock on 3 tests Charpy V notch
EN-GJSA XNiCr20-2 EN-JS3011 370 210 7 13
EN-GJSA XNiMn23-4 EN-JS3021 440 210 25 24
EN-GJSA XNiCrNb20-2 EN-JS3031 370 210 7 13
EN-GJSA XNi22 EN-JS3041 370 170 20 20
EN-GJSA XNi35 EN-JS3051 370 210 20 -
EN-GJSA XNiSiCr35-5-2 EN-JS3061 370 200 10 -
EN-GJSA XNiMn13-7 EN-JS3071 390 210 15 16
EN-GJSA-XNiCr30-3 EN-JS3081 370 210 7 -
EN-GJSA-XNiSiCr30-5-5 EN-JS3091 390 240 - -
EN-GJSA-XNiCr35-3 EN-JS3101 370 210 7 -
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PROPERTIES AND APPLICATIONS OF AUSTENITIC DUCTILE IRONS

Description of material Digital code Properties Applications
EN-GJSA XNiCr20-2 EN-JS3011 Good resistance to corrosion and heat No magnetic pumps/ gate compressors/ turbo-compressors
EN-GJSA XNiMn23-4 EN-JS3021 resistance at low temperature <196°C Applications for cold
EN-GJSA XNiCrNb20-2 EN-JS3031 good welding properties  
EN-GJSA XNi22 EN-JS3041 High ductility. High expansion ratio. Resistance to cold < 100°C
Pump / valve compressors / turbo-compressor collectors exhaust
EN-GJSA XNi35 EN-JS3051
Cast iron with the lowest coef expansion of all families melt. Good resistance to thermal shock
Parts asking a very good dimensional stability. Machines for scientific use, nanotechnology
EN-GJSA XNiSiCr35-5-2 EN-JS3061 this cast iron has a very high resistance to heat gas turbine pieces, turbo pieces
EN-GJSA XNiMn13-7 EN-JS3071 non magnetizable
Parts of turbo-alternator parts insulator. Navy
EN-GJSA-XNiCr30-3 EN-JS3081
Same as the melting IN GJSA-XNiCr20-2 but with better skills for the hot corrosion.
 Pumps / gates/ turbo parts
EN-GJSA-XNiSiCr30-5-5 EN-JS3091
Particularly high resistance to heat and corrosion - erosion
 Pumps – furnace pieces
EN-GJSA-XNiCr35-3 EN-JS3101
Very good ability to heat and high temperatures
Mould glassware
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VALUES RELEVANT TO MECHANICAL CHARACTERISTICS AT DIFFERENT TEMPERATURES

Characteristics Unit temperature °C EN-GJSA- XNiCr20-2 EN-GJSA- XNiCrNb20-2 EN-GJSA-XNi22 EN-GJSA- XNiCr30-3 EN-GJSA- XNiSiCr30-5-5 EN-GJSA -XNiCr30-3
Tensile stragth Rm N/mm2 20
430
540
650
760		 417
380
335
250
155		 437
369
295
197
121		 410
-
337
293
186		 450
-
426
337
153		 427
-
332
286
175
Yield strength 0,2% Rp0,2 N/mm2 20
430
540
650
760		 246
197
197
176
176		 240
184
165
170
117		 276
-
199
193
107		 312
-
291
239
130		 288
-
181
170
131
Elongation A % 20
430
540
650
760		 10.5
12
10.5
10.5
15		 35
23
19
10
13		 7.5
-
7.5
7
18		 3.5
-
4
11
30		 7
-
9
6.5
24.5
Resistance to creep (1000h) N/mm2 20
430
540
650
760		 197
127
84
60
39		 148
95
63
42
28		 -
165
105
68
42		 -
120
67
44
21		 -
176
105
70
39
Coercion required to reach a speed creep least 1% per 1000 h
 N/mm2 540
595
650
705		 162
92
56
34		 91
63
40
24		     190
112
67
56
Coercion required to reach a speed creep least 1% per 10 000h
 N/mm2 540
595
650
705		 63
39
24
15		       -
70
-
39
Lengthening creep
(1000h) 		% 540
595
650
705		 6
-
13
-		 14
-
13
-		 -
7
-
12.5		 -
10.5
-
25		 -
6.5
-
13.5
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