EN 10095

EN 10095 Specification

Scope

This Standard Specification covers the grades of wrought steels and nickel alloys listed in Tables below which are usually employed for products, for which the main requirement is their resistance to the effects of hot gases and products of combustion at temperatures above 550 8C. EN 10095 specifies the technical delivery conditions for semi-finished products, for hot or cold rolled sheet/plate and strip, hot or cold formed bars, rods and sections of heat resisting steels and nickel alloys.
Materials covered in this European Standard are classified according to their structure into:
– ferritic steels.
– austenitic-ferritic steels.
– austenitic steels.
– austenitic nickel alloys.

Chemical composition (cast analysis)¹ of ferritic heat-resisting steels

Steel designation		% by mass
Name	Number	C	Si	Mn max.	P max.	S max.	Cr	A1	Others
X10CrAlSi7	1.4713	max. 0.12	0.50 to 1.00	1.00	0.040	0.015	6.00 to 8.00	0.50 to 1.00
X10CrAlSi13	1.4724	max. 0.12	0.70 to 1.40	1.00	0.040	0.015	12.00 to 14.00	0.70 to 1.20
X10CrAlSi18	1.4742	max. 0.12	0.70 to 1.40	1.00	0.040	0.015	17.00 to 19.00	0.70 to 1.20
X10CrAlSi25	1.4762	max. 0.12	0.70 to 1.40	1.00	0.040	0.015	23.00 to 26.00	1.20 to 1.70
X18CrN28	1.4749	0.15 to 0.20	max. 1.00	1.00	0.040	0.015	26.00 to 29.00	—	N: 0.15 to 0.25
X3CrAlTi18-2	1.4736	max. 0.04	max. 1.00	1.00	0.040	0.015	17.00 to 18.00	1.70 to 2.10	0.2 + 4(C + N) ≤ Ti ≤ 0.80

Chemical composition (cast analysis)¹ of austenitic-ferritic and austenitic heat-resisting steels

Steel designation		% by mass
Name	Number	C	Si	Mn	P max.	S max.	Cr	Ni	N	Others
Austenitic heat-resisting steels
X8CrNiTi18-10	1.4878	max. 0.10	max. 1.00	max. 2.00	0.045	0.015	17.00 to 19.00	9.00 to 12.00		Ti: 5 X % C ≤ Ti ≤ 0.80
X15CrNisi20-12	1.4828	max. 0.20	1.50 to 2.50	max. 2.00	0.045	0.015	19.00 to 21.00	11.00 to 13.00	max. 0.11
X9CrNiSiNCe21-11-2	1.4835	0.05 to 0.12	1.40 to 2.50	max. 1.00	0.045	0.015	20.00 to 22.00	10.00 to 12.00	0.12 to 0.20	Ce: 0.03 to 0.08
X12CrNi23-13	1.4833	max. 0.15	max. 1.00	max. 2.00	0.045	0.015	22.00 to 24.00	12.00 to 14.00	max. 0.11
X8CrNi25-21	1.4845	max. 0.10	max. 1.50	max. 2.00	0.045	0.015	24.00 to 26.00	19.00 to 22.00	max. 0.11
X15CrNiSi25-21	1.4841	max. 0.20	1.50 to 2.50	max. 2.00	0.045	0.015	24.00 to 26.00	19.00 to 22.00	max. 0.11
X12NiCrSi35-16	1.4864	max. 0.15	1.00 to 2.00	max. 2.00	0.045	0.015	15.00 to 17.00	33.00 to 37.00	max. 0.11
X10NiCrAlTi32-21	1.4876	max. 0.12	max. 1.00	max. 2.00	0.030	0.015	19.00 to 23.00	30.00 to 34.00		A1: 0.15 to 0.60 Ti: 0.15 to 0.60
X6NiCrNbCe32-27	1.4877	0.04 to 0.08	max. 0.30	max. 1.00	0.020	0.010	26.00 to 28.00	31.00 to 33.00	max. 0.11	A1: max. 0.025 Ce : 0.05 to 0.10 Nb:0.60 to 1.00
X25CrMnNiN25-9-7	1.4872	0.20 to 0.30	max. 1.00	8.00 to 10.00	0.045	0.015	24.00 to 26.00	6.00 to 8.00	0.20 to 0.40
X6CrNiSiNCe19-10	1.4812	0.04 to 0.08	1.00 to 2.00	max. 1.00	0.045	0.015	18.00 to 20.00	9.00 to 11.00	0.12 to 0.20	Ce: 0.03 to 0.08
X6NiCrSiNCe35-25*)	1.4854	0.04 to 0.08	1.20 to 2.00	max. 2.00	0.040	0.015	24.00 to 26.00	34.00 to 36.00	0.12 to 0.20	Ce: 0.03 to 0.08
X10NiCrSi35-19	1.4886	max. 0.15	1.00 to 2.00	max. 2.00	0.030	0.015	17.00 to 20.00	33.00 to 37.00	max. 0.11
X10NiCrSiNb35-22	1.4887	max. 0.15	1.00 to 2.00	max. 2.00	0.030	0.015	20.00 to 23.00	33.00 to 37.00	max. 0.11	Nb: 1.00 to 1.50
Austenitic-ferritic heat-resisting steel
X15CrNiSi25-4	1.4887	0.10 to 0.20	0.8 to 1.50	max. 2.00	0.040	0.015	24.50 to 26.50	3.50 to 5.50	max. 0.11

Chemical composition (cast analysis)1) of austenitic nickel alloys

Alloys designation		% by mass
Name	Number	C	Mn max	Si max	P max.	S max.	Ni	Cr	Co	Fe	Mo	A1	Ti	Cu max.	Nb + Ta	B max.	Ce
NiCr15Fe	2.4816	0.05 to 0.10	1.00	0.50	0.020	0.015	min. 72.00	14.00 to 17.00	2)	6.00 to 10.00		max. 0.30	max. 0.30	0.50
NiCr20Ti	2.4851	0.08 to 0.15	1.00	1.00	0.020	0.015	Rest	18.00 to 21.00	max. 5.00	max. 5.00		max. 0.30	0.20 to 0.60	0.50
NiCr22Mo9Nb	2.4856	0.03 to 0.10	0.50	0.50	0.020	0.015	min. 58.00	20.00 to 23.00	max. 1.00	max. 5.00	8.00 to 10.00	max. 0.40	max. 0.40	0.50	3.15 to 4.15
NiCr23Fe	2.4851	0.03 to 0.10	1.00	0.50	0.020	58.00 to 63.00	min. 58.00	21.00 to 25.00	2)	max. 18.00		1.00 to 1.70	max. 0.50	0.50		0.006
NiCr28FeSiCe	2.4889	0.05 to 0.12	1.00	2.50 to 3.00	0.020	0.010	min. 45.00	26.00 to 29.00	2)	21.00 to 25.00				0.30			0.03 to 0.09
1)Elements not listed in the table may not be intentionally added to the alloy without the agreement of the purchaser except for finishing the cast. All appropriate precautions are to be taken to avoid addition of such elements from scrap and other materials used in production which would impair mechanical properties and the suitability of the alloy. 2) A maximum of 1,5 % Co is allowed and counted as nickel. Reporting of cobalt is not required. *) Patented steel grade.

Mechanical Properties

Designation		Products		Heat treatment conditions	HB max. 1) 2) 3)	Proof strength		Tensile strength	A % min.
Name	Number	Form	Thickness 𝘢 or diameter 𝘥 mm			R_p0.2 N/mm²	R_p1.0 N/mm²	R_m N/mm²	Long products	Flat products
						min 3)	min 3)	1)	3)	0.5 ≤ a ≤ 3 1, tr	3 < a
						min 3)	min 3)	1)	3)	0.5 ≤ a ≤ 3 1, tr	1	tr
Ferritic heat resisting steels
X10CrAlSi7	1.4713	flat products	a ≤ 12	+A	192	220		420 to 620	20	—	20	15
X10CrAlSi13	1.4724	flat products	a ≤ 12	+A	192	250		450 to 650	15	13	15	15
X10CrAlSi18	1.4742	bars	d ≤ 25	+A	212	270		500 to 700	15	13	15	15
X10CrAlSi25	1.4762	bars	d ≤ 25	+A	223	280		520 to 720	10	13	15	15
X18CrN28	1.4749	rods and sections	d ≤ 25	+A	212	280		500 to 700	15	13	15	15
X3CrAlTi18-2	1.4736	rods and sections	d ≤ 25	+A	200	280		500 to 650	—	25	25	25
Austenitic heat resisting steels
X8CrNiTi18-10	1.4878	flat products	a ≤ 75	+A	215	190	230	500 to 720	40¹⁾	40	40
X15CrNiSi20-12	1.4828			+A	223	230	270	550 to 750	30¹⁾	40	40
X9CrNiSiNCe21-11-2	1.4835			+A	210	310	350	650 to 850	40¹⁾	37	40
X12CrNi23-13	1.4833			+A	192	210	250	500 to 700	35¹⁾	33	35
X8CrNi25-21	1.4845	bars	d ≤ 160	+A	192	210	250	500 to 700	35¹⁾	33	35
X15CrNiSi25-21	1.4841			+A	223	230	270	550 to 750	30¹⁾	28	30
X12NiCrSi35-16	1.4864			+A	223	230	270	550 to 750	30¹⁾	28	30
X10NiCrAlTi32-21	1.4876			+A	192	170	210	450 to 680	30¹⁾	28	30
X6NiCrNbCe32-27	1.4877			+A	223	180	220	500 to 750	35¹⁾	—	—
X25CrMnNiN25-9-7	1.4872	rods and sections	a ≤ 72	+A	311	500	540	850 to 1050	25¹⁾	—	—
X6CrNiSiNCe19-10	1.4818			+A	210	290	330	600 to 800	40¹⁾	30	40
X6NiCrSiNCe35-25	1.4854			+A	210	300	340	650 to 850	40¹⁾	40	40
X10NiCrSi35-19	1.4886			+A	200	270	300	500 to 650	40	—	—
X10NiCrSiNb35-22	1.4887			+A	200	270	300	500 to 650	40	—	—
Austenitic-ferritic heat resisting steel
X15CrNiSi25-4	1.4821	flat products	a ≤ 12	+AT	225	400	—	600 to 850	16	—	16	12
		bars	d ≤ 60
		rods	d ≤ 25
Heat resisting nickel alloys
NiCr15Fe	2.4816	flat products	a ≤ 75	+AT	200	240	—	550 to 850	30	30	30	—
		bars	d ≤ 160
		rods	d ≤ 25
NiCr20Ti	2.4951	flat products	a ≤ 75	+AT	230	240	—	650 to 850	30	—	30	—
		bars	d ≤ 160
		rods	d ≤ 25
NiCr22Mo9Nb	2.4856	flat products	3 ≤ a < 75	+AT	240	380	—	760 to 100	—	—	30	30
		flat products	a < 3			415	—	820 to 1050	—	30	—	—
		bars	100 < d ≤ 250			345	–	760 to 1000	25	—	—	—
		bars	d ≤ 100			415	—	820 to 1050	30	—	—	—
		rods	d ≤ 25			415	–	820 to 1050	30	—	—	—
NiCr23Fe	2.4851	flat products	a ≤ 75	+AT	220	205	—	550 to 750	30	—	30	30
		bars	d ≤ 160
		rods	d ≤ 25
NiCr28FeSiCe	2.4889	flat products	a ≤ 50	+AT	220	240	—	620 to 820	35	35	35	35
NiCr28FeSiCe	2.4889	bars	d ≤ 160	+AT	220	240	—	620 to 820	35	35	35	35
1) The maximum HB values may be raised by 100 units or the maximum tensile strength value may be raised by 200 N/mm² and the minimum elongation value be lowered to 20 % for sections and bars of ≤ 35 mm thickness having a final cold deformation. 2) For guidance only. 3) For rods, only the tensile strength values apply.

Heat Treatments

Designation		Heat Treatments
Name	Number	Symbol¹⁾	Temperatures²⁾ °C	Type of cooling³⁾
Ferritic heat resisting steels
X10CrAlSi7	1.4713	+A	780 to 840	a, w ⁴⁾
X10CrAlSi13	1.4724	+A	800 to 860	a, w ⁴⁾
X10CrAlSi18	1.4742	+A	800 to 860	a, w ⁴⁾
X10CrAlSi25	1.4762	+A	800 to 860	a, w ⁴⁾
X18CrN28	1.4749	+A	800 to 860	a, w ⁴⁾
X3CrAlTi18-2	1.4736	+A	870 to 930	a
Austenitic heat resisting steels⁶⁾
X8CrNiTi18-10	1.4878	+AT	1 020 to 1 120	W, a⁵⁾
X15CrNiSi20-12	1.4828	+AT	1 050 to 1 150	W, a⁵⁾
X9CrNiSiNCe21-11-2	1.4835	+AT	1 020 to 1 120	W, a⁵⁾
X12CrNi23-13	1.4833	+AT	1 050 to 1 120	W, a⁵⁾
X8CrNi25-21	1.4845	+AT	1 050 to 1 120	W, a⁵⁾
X15CrNiSi25-21	1.4841	+AT	1 050 to 1 120	W, a⁵⁾
X12NiCrSi35-16	1.4864	+AT	1 020 to 1 120	W, a⁵⁾
X10NiCrAlTi32-21	1.4876	+AT	1 050 to 1 120	W, a⁵⁾
X6NiCrNbCe32-27	1.4877	+AT	1 050 to 1 120	W, a⁵⁾
X25CrMnNiN25-9-7	1.4872	+AT	1 050 to 1 120	W, a⁵⁾
X6CrNiSiNCe19-10	1.4818	+AT	1 020 to 1 120	W, a⁵⁾
X6NiCrSiNCe35-25	1.4854	+AT	1 100 to 1 150	W, a⁵⁾
X10NiCrSi35-19	1.4886	+AT	1 050 to 1 150	W, a⁵⁾
X10NiCrSiNb35-22	1.4887	+AT	1 050 to 1 150	W, a⁵⁾
Austenitic-ferritic heat resisting steel
X15CrNiSi25-4	1.4821	+AT	1 000 to 1 100	W, a⁵⁾
Heat resisting nickel alloys
NiCr15Fe	2.4816	+A	950 to 1 000	W, a⁵⁾
NiCr20Ti	2.4951	+AT	1 000 to 1 050	W, a⁵⁾
NiCr22Mo9Nb	2.4856	+A	950 to 1 000	W, a⁵⁾
NiCr23Fe	2.4851	+AT	1 100 to 1 200	W, a⁵⁾
NiCr28FeSiCe	2.4889	+AT	1 150 to 1 200	W, a⁵⁾
1) A = annealed; AT = solution annealed. 2) If heat treatment is carried out in a continuous furnace, the upper part of the range specified is usually preferred or even exceeded. 3) a = air; w = water. 4) In special cases furnace cooling is also permitted. 5) Cooling sufficiently rapid. 6) Heat treatment is not required in each case since the material will be exposed to high temperature when in operation.

Maximum Application Temperature T_a For Air

Designation		T_amax. °C
Name	Number	T_amax. °C
Ferritic heat resisting steels
X10CrAlSi7	1.4713	800²⁾
X10CrAlSi13	1.4724	850²⁾
X10CrAlSi18	1.4742	1 000²⁾
X10CrAlSi25	1.4762	1 150²⁾
X18CrN28	1.4749	1 100
X3CrAlTi18-2	1.4736	1 000
Austenitic heat resisting steels
X8CrNiTi18-10	1.4878	850²⁾
X15CrNiSi20-12	1.4828	1 000²⁾
X9CrNiSiNCe21-11-2	1.4835	1 150
X12CrNi23-13	1.4833	1 000²⁾
X8CrNi25-21	1.4845	1 050²⁾
X15CrNiSi25-21	1.4841	1 150²⁾
X12NiCrSi35-16	1.4864	1 100²⁾
X10NiCrAlTi32-21	1.4876	1 100²⁾
X6NiCrNbCe32-27	1.4877	1 150²⁾
X25CrMnNiN25-9-7	1.4872	1 150²⁾
X6CrNiSiNCe19-10	1.4872	1 050
X6NiCrSiNCe35-25	1.4854	1 170
X10NiCrSi35-19	1.4886	1 100
X10NiCrSiNb35-22	1.4887	1 100
Austenitic-ferritic heat resisting steel
X15CrNiSi25-4	1.4821	1 100²⁾
Heat resisting nickel alloys
NiCr15Fe	2.4816	1 150²⁾
NiCr20Ti	2.4951	1 150
NiCr22Mo9Nb	2.4856	1 000
NiCr23Fe	2.4851	1 200²⁾
NiCr28FeSiCe	2.4889	1 200
1) See Creep Properties For 1% Elongation Table. 2) The loss of metal caused by scaling does not exceed 1 g/m².h at T_a, and does not exceed 2 g/m² at T_a + 50 °C on average for a period of 120 h with four intermediate coolings.

Creep Properties Estimated average value of the strength for 1% elongation at elevated temperature¹

Designation		Heat treatment	Elongation 1 % in 1000 h						Elongation 1 % in 10 000 h						Elongation 1 % in 100 000 h
Name	Number	Heat treatment	500°C	600°C	700°C	800°C	900°C	1000°C	500°C	600°C	700°C	800°C	900°C	1000°C	500°C	600°C	700°C	800°C	900°C	1000°C
Ferritic heat resisting steels
X10CrAlSi7	1.4713
X10CrAlSi13	1.4724
X10CrAlSi18	1.4742	+A	80	27.5	8.5	3.7	1.8		50	17.5	4.7	2.1	1.0
X10CrAlSi25	1.4762
X18CrN28	1.4749
X3CrAlTi18-2	1.4736
Austenitic heat resisting steels
X8CrNiTi18-10	1.4878	+AT		110	45	15				85	30	10
X15CrNiSi20-12	1.4828	+AT		120	50	20	8			80	25	10	4
X9CrNiSiNCe21-11-2	1.4835	+AT		170	66	31	15.5	(8)		126	45	19	10	(5)		80	26	11	6	(3)
X12CrNi23-13	1.4833	+AT		100	40	18	8			70	25	10	5
X8CrNi25-21	1.4845	+AT		100	45	18	10			90	30	10	4
X15CrNiSi25-21	1.4841	+AT		105	50	23	10	3		95	35	10	4
X12NiCrSi35-16	1.4864	+AT		105	50	25	12			80	35	15	5			40	14	4	1.5
X10NiCrAlTi32-21	1.4876	+AT		130	70	30	13			90	40	15	5
X6NiCrNbCe32-27	1.4877	+AT
X25CrMnNiN25-9-7	1.4872	+AT			55	15	4				34	8	2
X6CrNiSiNCe19-10	1.4818	+AT		147	61	25	9	(2.5)		126	42	15	5	(1.7)		80	26	9	3	(1.0)
X6NiCrSiNCe35-25	1.4854	+AT		150	60	26	12.5	6.5		88	34	15	8	4.5		52	21	9.7	5.1	3.0
X10NiCrSi35-19	1.4886	+AT		110	60	26	12			60	35	20	10	(4)
X10NiCrSiNb35-22	1.4887	+AT		110	60	26	12			60	35	20	10	(4)
Austenitic-ferritic heat resisting steel
X15CrNiSi25-4	1.4821	+AT	80	27.5	8.5	3.7	1.8		50	17.5	4.7	2.1	1.0
Heat resisting nickel alloys
NiCr15Fe	2.4816	+A							153	91	43	18	8		126	66	28	12	4
NiCr28FeSiCe	2.4889	+A									25	11.9	5.9	3.1			16	7.2	3.5	1.9

Creep Properties Estimated average value of the strength for rupture at elevated temperature¹

Designation		Heat treatment	Rupture 1 % in 1000 h						Rupture 1 % in 10 000 h						Rupture 1 % in 100 000 h
Name	Number	Heat treatment	500°C	600°C	700°C	800°C	900°C	1000°C	500°C	600°C	700°C	800°C	900°C	1000°C	500°C	600°C	700°C	800°C	900°C	1000°C
Ferritic heat resisting steels
X10CrAlSi7	1.4713
X10CrAlSi13	1.4724
X10CrAlSi18	1.4742	+A	160	55	17	7.5	3.6		100	35	9.5	4.3	1.9		55	20	5	2.3	1.0
X10CrAlSi25	1.4762
X18CrN28	1.4749
X3CrAlTi18-2	1.4736
Austenitic heat resisting steels
X8CrNiTi18-10	1.4878	+AT		200	88	30				142	48	15				65	22	10
X15CrNiSi20-12	1.4828	+AT		190	75	35	15			120	36	18	8.5			65	16	7.5	3
X9CrNiSiNCe21-11-2	1.4835	+AT		238	105	50	24	(12)		157	63	27	13	(7)		88	35	15	8	(4)
X12CrNi23-13	1.4833	+AT		190	75	35	15			120	36	18	8.5			65	16	7.5	3
X8CrNi25-21	1.4845	+AT		170	80	35	15			130	40	18	8.5			80	18	7	3
X15CrNiSi25-21	1.4841	+AT		170	90	40	20	5		130	40	20	10			80	18	7	3
X12NiCrSi35-16	1.4864	+AT		180	75	35	15			125	45	20	8			75	25	7	3	1.5
X10NiCrAlTi32-21	1.4876	+AT		200	90	45	20			152	68	30	10			114	48	21	8
X6NiCrNbCe32-27	1.4877	+AT								175	80	24	10	(3.5)		140	52	16	5	(1.5)
X25CrMnNiN25-9-7	1.4872	+AT			80	26	11				45	12	5
X6CrNiSiNCe19-10	1.4818	+AT		238	105	46	18	(7)		157	63	25	10	(4)		88	35	14	5	(1.5)
X6NiCrSiNCe35-25	1.4854	+AT		200	84	41	22	12		127	56	28	15	8		80	36	18	9.2	4.8
X10NiCrSi35-19	1.4786	+AT		190	80	43	22			130	55	26	13
X10NiCrSiNb35-22	1.4887	+AT		190	80	43	22			130	55	26	13
Austenitic-ferritic heat resisting steel
X15CrNiSi25-4	1.4821	+AT	160	55	17	7.5	3.6		100	3.5	9.5	4.3	1.9
Heat resisting nickel alloys
NiCr15Fe-4	2.4816	+A		160	96	38	22	11	297	138	63	29	13	7	215	97	42	17	7
NiCr20Ti	2.4951	+AT				37	20	11		100	36	17	10	6		68	23	11.5	7	5
NiCr22Mo9Nb	2.4956	+A			260	107	34				190	63	20
NiCr23Fe	2.4851	+AT		264	153	60	20			205	101	31	10	5		156	55	17	4	2
NiCr28FeSiCe	2.4889	+AT									40	19	9.5	5.9			28	13	5.9	3
1) Values in parentheses involve time and/or stress extrapolation.

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EN 10095

EN 10095 Specification

Table of Contents

Scope

Chemical composition (cast analysis)¹ of ferritic heat-resisting steels

Chemical composition (cast analysis)¹ of austenitic-ferritic and austenitic heat-resisting steels

Chemical composition (cast analysis)1) of austenitic nickel alloys

Mechanical Properties

Heat Treatments

Maximum Application Temperature T_a For Air

Creep Properties Estimated average value of the strength for 1% elongation at elevated temperature¹

Creep Properties Estimated average value of the strength for rupture at elevated temperature¹

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EN 10095

EN 10095 Specification

Table of Contents

Scope

Chemical composition (cast analysis)1 of ferritic heat-resisting steels

Chemical composition (cast analysis)1 of austenitic-ferritic and austenitic heat-resisting steels

Chemical composition (cast analysis)1) of austenitic nickel alloys

Mechanical Properties

Heat Treatments

Maximum Application Temperature Ta For Air

Creep Properties Estimated average value of the strength for 1% elongation at elevated temperature1

Creep Properties Estimated average value of the strength for rupture at elevated temperature1

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Chemical composition (cast analysis)¹ of ferritic heat-resisting steels

Chemical composition (cast analysis)¹ of austenitic-ferritic and austenitic heat-resisting steels

Maximum Application Temperature T_a For Air

Creep Properties Estimated average value of the strength for 1% elongation at elevated temperature¹

Creep Properties Estimated average value of the strength for rupture at elevated temperature¹