Materials

Types of cast iron and steel alloys

Designation and mechanical properties, according to standard, of the cast irons and steels we manufacture.

Iron castings

Technical specifications

Nodular (ductile) cast iron

Standard EN 1563:2012

Material designation		Tensile strength	Yield strength	Minimum elongation	Hardness range	Metallographic structure
Symbol	Number	N/mm2	N/mm2	% Minimum	HB	Metallographic structure
EN-GJS-400-18	53105	400	250	18	130-175	Ferrite
EN-GJS-400-15	53106	400	250	15	135-180	Ferrite
EN-GJS-450-10	53107	450	310	10	160-210	Ferrite
EN-GJS-500-7	53200	500	320	7	170-230	Ferrite-Pearlite
EN-GJS-600-3	53201	600	370	3	190-270	Pearlite-Ferrite
EN-GJS-700-2	53300	700	420	2	225-305	Pearlite
EN-GJS-800-2	53301	800	480	2	245-335	Pearlite or tempered martensite
EN-GJS-900-2	53302	900	600	2	270-360	Tempered martensite

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Technical specifications

Grey cast iron

Standard EN 1561:2012

Material designation		Tensile strength	Yield strength	Minimum elongation	Hardness range	Metallographic structure
Symbol	Number	N/mm2	mm2 Min.	% Minimum	HB	Metallographic structure
EN-GJL-150	51200	150-250	98-165	0,8-0,3	125-205	Ferrite-Pearlite
EN-GJL-200	51300	200-300	130-195	0,8-0,3	150-230	Pearlite
EN-GJL-250	51301	250-350	165-228	0,8-0,3	180-250	Pearlite
EN-GJL-300	51302	300-400	195-260	0,8-0,3	200-275	Pearlite
EN-GJL-350	51303	350-450	228-285	0,8-0,3	220-290	Pearlite

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Iron-carbon diagram with the carbon range of these alloys highlighted — **Iron-carbon diagram.** The coloured band shows the carbon range of the alloys in this section.

Ni-Hard white cast iron – Ni-Resist cast iron

Technical specifications

High-chromium white cast irons

Standard ASTM A532

Material designation		Hardness range
Designation	Material name	HB
Class I Type A	Ni-Cr-HC	550-600
Class I Type B	Ni-Cr-LC	550-600
Class II Type A	12 % Cr	550-600
Class II Type B	15 % Cr-Mo-LC	450-600
Class III Type A	25 % Cr	450-600

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Technical specifications

Ni-Resist cast iron

Standard DIN 1694

Material designation	Tensile strength Rm	Yield strength Rp0.2	Minimum elongation	Hardness range	Name
Symbol	N/mm2	N/mm2 Minimum	% Minimum	HB
GGL-NiCuCr 15 6 2	170/210	85/105	2	120-215	Ni-Resist 1
GGL-NiCuCr 15 6 3	190/240	98/113	1	150-250	Ni-Resist 1b
GGL-NiCr 20 2	170/210	85/105	2	120-215	Ni-Resist 2
GGL-NiCr 20 3	190/240	98/113	1	160-250	Ni-Resist 2b
GGGNiCr 20 2	370/480	210/250	7	140-200	Ni-Resist D-2
GGGNiCrNb 20 2	370/480	210/250	8	140-200	Ni-Resist D-2W
GGGNiCr 20 3	390/500	210/260	7	150-255	Ni-Resist D-2B

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Chromium Steel – Manganese Steel castings

Technical specifications

Wear-resistant steels and cast irons

Standard EN 12513:2011

Material designation			Hardness
Designation	Material name	Material No.	HRc
G-X 260 CrMoNi 20 2 1	EN-GJN-HV600(XCr18)	EN-JN3039	> 55
G-X 260 Cr 27	EN-GJN-HV600(XCr23)	EN-JN3049	> 60

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Technical specifications

Manganese steel

Standard ASTM A128/A128M

Material designation		Approx. tensile strength Rm	Approx. elongation	Hardness
Designation	Symbol	N/mm2 Minimum	% Minimum	HB
GX-120 Mn 12	Gr. B-3	590	25	< 300
GX-120 Mn Cr 12.2	Gr. C	740	20	< 225

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Carbon Steel castings

Technical specifications

Carbon steels

Standard ASTM A216

Material designation		Tensile strength Rm	Yield strength Rp0.2	Elongation	Reduction of area
Designation	Symbol	N/mm2	/mm2 Min.	% Minimum	% Minimum
GS-38	WCB	485-655	250	22	35
GS-20 Mn 5	WCC	485-655	275	22	35
GS-C25	WCA	415-585	205	24	35

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Technical specifications

Alloyed carbon steels

Standard EN 10293:2015

Material designation	Tensile strength Rm	Yield strength Rp0.2	Elongation	KV impact energy
Designation	N/mm2	N/mm2 Minimum	% Minimum	J
GS240	880-980	240	22	31
GE300	880-960	300	15-18	27-31
G17Mn5	920-980	240	24	27-70
G34CrMo4	880-950	330-650	10	16-27
G42CrMo4	880-950	350-700	10	16-31

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Do you need another alloy or a specific standard?

Our engineering office will advise you on the most suitable material for your part.

Ask us