Cast iron for hardness

Materials Cast iron

There are different types of hardness. In this way we explain the different types.

Cast iron (EN-GJL)

Item according
to DIN EN 1561
Wall thickness [mm] Brinellhardness 1) 2) [HB]
from to min. max.
EN-GJL-HB 155
EN-JL 2010
40 3)
20
10
5
2,5
80
40
20
10
5




155
160
170
185
210
EN-GJL-HB 175
EN-JL 2020
40 3)
20
10
5
2,5
80
40
20
10
5
100
110
125
140
170
175
185
205
225
260
EN-GJL-HB 195
EN-JL 2030
40 3)
20
10
5
4
80
40
20
10
5
120
135
150
170
190
195
210
230
260
275
EN-GJL-HB 215
EN-JL 2040
40 3)
20
10
5
80
40
20
10
145
160
180
200
215
235
255
275
EN-GJL-HB 235
EN-JL 2050
40 3)
20
10
80
40
20
165
180
200
235
255
275
EN-GJL-HB 255
EN-JL 2060
40 3)
20
80
40
185
200
255
275

1) For each type, the Brinell hardness decreases with increasing wall thickness.
2) If it has been agreed between the supplier and the buyer, a limited hardness may be permitted for an agreed location of the casting. This is no less than 40 Brinell units.
3) Determinative wall thickness for these species.

Cast iron (EN-GJS)

Item according
to DIN EN 1563
Brinellhardness Further features 1) 2) [HB]
Tensile Strength [MPa] 0,2% Yield Strength [MPa]
EN-GJS-HB 130
EN-JS 2010
under 160 350 220
EN-GJS-HB 150
EN-JS 2020
130-175 400 250
EN-GJS-HB 155
EN-JS 2030
135-180 400 250
EN-GJS-HB 185
EN-JS 2040
160-210 450 310
EN-GJS-HB 200
EN-JS 2050
170-230 500 320
EN-GJS-HB 230
EN-JS 2060
190-270 600 370
EN-GJS-HB 265
EN-JS 2070
225-305 700 420

If it has been agreed between the supplier and the buyer, a limited hardness may be permitted for an agreed location of the casting. This is no less than 40 Brinell units.

Materials Cast Iron

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