Material information - Walzengiesserei Coswig

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Made-to-measure Formulation

We also manufacture materials that exceed the DIN/EN quality requirements. Our engineers recommend the optimum material selection for your requirements on the basis of load calculations.

Hand-mould castings – cast iron with acicular graphite cast iron (grey cast iron)

	Wall thicknesses in mm						Wall thicknesses in mm
Material designations as per EN 1561	2.5-5	5-10	2.5-5	20-40	40-80	80-150	2.5-5	5-10	10-20	20-40	40-80	80-150
	Tensile strength Rm in N/mm²						Hardness (in one piece) in HB
EN-GJL-150 EN-JL 1020*	150 -250	150 -250	150 -250				170 -260	140 -225	125 -205
EN-GJL-200 EN-JL 1030*		200 -300	200 -300	200 -300	200 -300			170 -160	150 -230	135 -210	120 -195
EN-GJL-250 EN-JL 1040*			250 -300	250 -350	250 -350				180 -255	160 -235	145 -215
EN-GJL-300 EN-JL 1050*				300 -400	300 -400	min. 210				180 -255	165 -235
	*EN material no.				Standard values shown in bold type					Recommended type selection

Mechanical properties (measured on separately cast test pieces, Ø 30mm)
Material designations as per EN 1561		EN-GJL150	EN-GJL-200	EN-GJL-250	EN-GJL-300
Matrix		Ferrite/pearlite	Pearlite	Pearlite	Pearlite
Tensile strength	N/mm²	150 to 250	200 to 300	250 to 350	300 to 400
Brinell hardness	HBW	105 to 205	150 to 230	180 to 255	200 to 275
0.1% proof strength	N/mm²	98 to 165	130 to 195	165 to 228	195 to 260
Elongation to fracture	%	0.8 to 0.3	0.8 to 0.3	0.8 to 0.3	0.8 to 0.3
Compressive strength	N/mm²	600	720	840	960
Flexural strength	N/mm²	250	290	340	390
Modulus of elasticity (load-dependent)	kN/mm²	78 to 103	88 to 113	103 to 118	108 to 137
Fatigue strength under reversed bending stress	N/mm²	70	90	120	140
Compression-tention fatigue strength	N/mm²	40	50	60	75
Fracture toughness	MPa√m	12	17	20	19

Physical properties
Material designations as per EN 1561		EN-GJL150	EN-GJL-200	EN-GJL-250	EN-GJL-300
Density	kg/dm³	7.10	7.15	7.20	7.25
Specific heat capacity	J/(kg · K)	20 - 200 °C: 460 20 - 600 °C: 535
Coefficient of thermal expansion	10^-6 K^-1	20 - 200 °C: 11.720 - 400 °C: 13.0
Thermal conductivity (100 - 500 °C)	W/(m · K)	52.5 - 48.5	50.0 - 46.0	48.5 - 44.5	47.5 - 43.0
Electrical resistivity	µΩ · m	0.80	0.77	0.73	0.7

Hand-mould castings – Cast iron with spheroidal graphite cast iron (nodular graphite iron)

Material designations as per EN 1563	EN-GJS-	350-22-LT	400-18-LT	400-18	400-15	500-7	600-3	700-2
EN material no.	EN-JS-	1015	1025	1020	1030	1050	1060	1070
EN material no.	EN-JS-	1019	1049	1062	1072	1082	1092	1102
Predominant matrix		Ferrite			Ferrite/Pearlite			Pearlite
Mechanical properties (measured on separately cast test pieces for significant wall thickness t < 30 mm)
Tensile strength	N/mm²	350	400	400	400	500	500	700
0.2% proof strength	N/mm²	220	240	250	250	320	370	420
Elongation to fracture	%	22	18	18	15	7	3	2
Notch impact energy	J - 40 °C	12/9	12/9	-20 °C avarage value from 3 tests/single value
Brinell hardness	HBW	< 170	120-175	120-180	120-180	170-240	180-260	220-300
Modulus of elasticity	kN/mm²	169	169	169	169	169	174	176
Fatigue strength (Wöhler)	N/mm²	180	195	195	200	224	248	280
Fracture thoughness	MPa√m	31	30	30	30	25	20	15
Physical properties
Density	kg/dm³	7.1	7.1	7.1	7.1	7.1	7.2	7.2
Specific heat capacity 20 °C - 550 °C	J/(kg · K)	515	515	515	515	515	515	515
Thermal coefficient of expansion 20 °C - 400 °C	10^-6 K^-1	12.5	12.5	12.5	12.5	12.5	12.5	12.5
Thermal conductivity at 300 °C	W/(m · K)	36.2	36.2	36.2	36.2	35.2	35.2	31.1
Electrical resistivity	µΩ · m	0.50	0.50	0.50	0.50	0.51	0.53	0.54

Wear-resistant chromium-nickel cast iron (NiHard)

Material designation		Brinell hardness	Chemical composition in %
		HBW	(mass fractions)
Symbol	Number	min.	C	Si	Mn	P	S	Ni	Cr
EN-GJN-HB555	5.5605	555	2.5 to 3.5	1.5 to 2.5	0.3 to 0.8	max. 0.08	max 0.08	4.5 to 6.5	8.0 to 10.0

Wear-resistant cast iron with a high chromium content

Material designation		Chemical composition in %									Brinell hardness
		(mass fractions)									HBW
Symbol	Number	C	Si	Mn	P	S	Cr	Ni	Mo	Cu	min.
EN-GJN-HB555(XCr14)	5.5608	> 1.8 to 3.6	max. 1.0	0.5 to 1.5	max. 0.08	max 0.08	14.0 to 18.0	max. 2.0	max. 3.0	max. 1.2	550

Solid solution-strengthened ferritic cast iron (as per EN 1563)

Material symbol			EN-GJS-450-18	EN-GJS-500-14
Material number			5.3108	5.3109
Tensile strength	Rm	N/mm²	≥ 450	≥ 500
0.2% proof strength	Rp0.2	N/mm²	≥ 350	≥ 400
Elongation of elasticity	A	%	≥ 18	≥ 14
Modulus of elasticity	E	GN/m²	≥ 170	≥170
Hardness 1)	HBW		170-200	185 - 215

Material designation		Significant wall thickness	0.2% proof strength	Tensile strength	Elongation
		t	Rp0.2	Rm	A
		mm	N/mm²	N/mm²	%
Symbol	Number		min	min	min
EN-GJS-450-18	5.3108	t ≤ 30	350	450	18
		30 ≤ t ≤ 60	340	430	14
		t > 60	to be agreed between the manufacturer and purchaser
EN-GJS-500-14	5.3109	t ≤ 30	400	500	14
		30 ≤ t ≤ 60	390	480	14
		t > 60	to be agreed between the manufacturer and purchaser