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The choice of grade depends on several factors:
-Maximum temperature of operation
-Time at temperature, cyclic nature of process
-Type of atmosphere, oxidising , reducing, sulphidising, carburising.
-Strength requirement

In the European standards, a distinction is made between stainless steels and heat-resisting steels. However, this distinction is often blurred and it is useful to consider them as one range of steels.

Increasing amounts of Chromium and silicon impart greater oxidation resistance. Increasing amounts of Nickel impart greater carburisation resistance.

Dimensions:

- diamaters from 4,0 mm to 245,0 mm

- walls thickness from 0,3 mm to 20,62 mm

X45CrSi9-3 (1.4718)
Euro standard	1.4718
Standard:	EN 10088 - 3 : 2005 Stainless steels. Technical delivery conditions for semi-finished products, bars, rods, wire, sections and bright products of corrosion resisting steels for general purposes
Classification:	Martensitic heat-resisting steels
Steel grade equivalent	USA: HNV-3 German (DIN, WNr): X45CrSi9-3 Poland (PN): H9S2 Russia (GOST): 40KH9S2

X45CrSi9-3 (1.4718)
C	Si	Mn	P	S	Cr	Ni
0,40-0,50	2,70-3,30	max 0,80	max 0,040	max 0,030	8,00-10,00	max 0,60

X10CrAlSi13 (1.4724)
Euro standard:	1.4724
Standard:	EN 10095 : 1999 Heat Resisting Steels and Nickel Alloys
Classification:	Ferritic heat-resisting steels
Steel grade equivalent:	France (AFNOR): Z13C13 Poland (PN): H13JS Russia (GOST): 10KH13SYU

Chemical composition % of the ladle analysis of grade X10CrAlSi13 (1.4724)
C	Si	Mn	P	S	Cr	Al
max 0,12	0,70-1,40	max 1,00	max 0,040	max 0,015	12,00-14,00	0,70-1,20

X10CrAlSi18 (1.4742)
Euro standard:	1.4742
Standard:	EN 10095 : 1999 Heat Resisting Steels and Nickel Alloys
Classification:	Ferritic heat-resisting steels
Steel grade equivalent:	France (ANFOR): Z12CAS18 Poland (PN): H18JS Russia (GOST): 15KH18SJu

Chemical composition % of the ladle analysis of grade X10CrAlSi18 (1.4742)
C	Si	Mn	P	S	Cr	Al
max 0,12	0,70-1,40	max 1,00	max 0,040	max 0,015	17,00-19,00	0,70-1,20

X18CrN28 (1.4749)
Euro standard:	1.4749
Standard:	EN 10095 : 1999 Heat Resisting Steels and Nickel Alloys
Classification:	Ferritic heat-resisting steels
Steel grade equivalent:	USA: 446 Russia (GOST): 15H25T, 15Cr25Ti Poland (PN): H25T

Chemical composition % of the ladle analysis of grade X18CrN28 (1.4749)
C	Si	Mn	P	S	N	Cr	Inne
0,15-0,20	max 1,00	max 1,00	max 0,045	max 0,015	0,15-0,25	26,00-29,00	Al 0,70-1,20 (1.4749) or

Ti 0,70-1,20 (15H25T)

X10CrAlSi25 (1.4762)
Euro standard:	1.4762
Standard:	EN 10095 : 1999 Heat Resisting Steels and Nickel Alloys
Classification:	Ferritic heat-resisting steels
Steel grade equivalent:	France (AFNOR): Z12CAS25 Poland (PN): H24JS USA: 446

Chemical composition % of the ladle analysis of grade X10CrAlSi25 (1.4762)
C	Si	Mn	P	S	Cr	Al
max 0,12	0,70-1,40	max 1,00	max 0,040	max 0,015	23,00-26,00	0,20-1,70

12CrMo19-5, X12CrMo5 (1.7362)
Euro standard:	1.7362
Standard:	EN 10088 - 3 : 2005 Stainless steels. Technical delivery conditions for semi-finished products, bars, rods, wire, sections and bright products of corrosion resisting steels for general purposes
Classification:	Ferritic heat-resisting steels
Steel grade equivalent:	Poland (PN): H5M Russia (GOST): 15H5M, 15KH5M, 15X5M, 15Ch5M German (DIN, WNr): 12CrMo19-5, 12CrMo195, 1.7362 USA: UNS S50200, AISI 502, UNS K 41545, UNS K41545 Great Britain (BS): 1Cr5Mo, S45110 France (AFNOR): X 16 CrMo 5-1, X16CrMo5-1, X16Crmo51

Skład chemiczny gatunku 1,7362
C	Si	Mn	P	S	Cr	Mo	Ni
max 0,15	max 0,50	max 0,50	max 0,035	max 0,030	4,50-6,00	0,45-0,60	max 0,50

X15CrNiSi20-12 (1.4828)
Euro standard:	1.4828
Standard:	EN 10095 : 1999 Heat Resisting Steels and Nickel Alloys
Classification:	Austenitic heat-resisting steels
Steel grade equivalent:	France (AFNOR): Z17CNS20-12 Poland (PN): H20N12S2 Russia (GOST): 08KH20N14S2, 20KH20N14S2 USA: AISI 309

Chemical composition % of the ladle analysis of grade X15CrNiSi20-12 (1.4828)
C	Si	Mn	P	S	N	Cr	Ni
max 0,20	1,50-2,00	max 2,00	max 0,045	max 0,030	max 0,011	19,00-21,00	11,00-13,00

X12CrNi23-13 (1.4833)
Euro standard:	1.4833
Standard:	EN 10095 : 1999 Heat Resisting Steels and Nickel Alloys
Classification:	Austenitic heat-resisting steels
Steel grade equivalent:	USA: AISI 309S France (AFNOR): Z15CN23-13 Great Britain (BS): 309S16 Russia (GOST): 20KH23N13 Poland (PN): H23N13

Chemical composition % of the ladle analysis of grade X12CrNi23-13 (1.4833)
C	Si	Mn	P	S	N	Cr	Ni
max 0,015	max 1,00	max 2,00	max 0,045	max 0,030	max 0,011	22,00-24,00	12,00-14,00

X15CrNiSi25-21 (1.4841)
Euro standard:	1.4841
Wykonanie:	EN 10095 : 1999 Heat Resisting Steels and Nickel Alloys
Classification:	Austenitic heat-resisting steels
Steel grade equivalent:	USA: AISI 314, AISI 310 France (AFNOR): Z15CNS25-20 Poland (PN): H25N20S2 Russia (GOST): 20KH25N20S2, 20Ch25N20S2

Chemical composition % of the ladle analysis of grade X15CrNiSi25-21 (1.4841)
C	Si	Mn	P	S	N	Cr	Ni
max 0,20	1,50-2,50	max 2,00	max 0,045	max 0,030	max 0,011	24,00-26,00	19,00-22,00

CrNi25-20, X16CrNi25-20 (1.4843)
Euro standard:	1.4843
Standard:	EN 10095 : 1999 Heat Resisting Steels and Nickel Alloys
Classification:	Austenitic heat-resisting steels
Steel grade equivalent:	Poland (PN): H23N18

Chemical composition % of the ladle analysis of grade CrNi25-20, X16CrNi25-20 (1.4843)
C	Si	Mn	P	S	Cr	Ni
max 0,20	max 1,00	max 1,50	max 0,045	max 0,030	22,00-25,00	17,00-20,00

X8CrNi25-21, X6CrNi25-20 (1.4845)
Euro standard:	1.4845
Standard:	EN 10095 : 1999 Heat Resisting Steels and Nickel Alloys
Classification:	Austenitic heat-resisting steels
Steel grade equivalent:	USA : AISI 310S Russia (GOST): 20Ch23N18, 20KH23N18 Poland (PN): H23N18 German (DIN, WNr): X8CrNi25-21, 1.4845

Chemical composition % of the ladle analysis of grade X8CrNi25-21 (1.4845)
C	Si	Mn	P	S	N	Cr	Ni
max 0,10	max 1,50	max 2,00	max 0,045	max 0,030	max 0,011	24,00-26,00	19,00-22,00

X12NiCrSi35-16 (1.4864)
Euro standard:	1.4864
Standard:	EN 10095 : 1999 Heat Resisting Steels and Nickel Alloys
Classification:	Austenitic heat-resisting steels
Steel grade equivalent:	USA: AISI 330 Poland (PN): H16N36S2 German (DIN, WNr): X12NiCrSi35-16, 1.4864

Chemical composition % of the ladle analysis of grade X12NiCrSi35-16 (1.4864)
C	Si	Mn	P	S	N	Cr	Ni
max 0,15	1,00-2,00	max 2,00	max 0,045	max 0,030	max 0,011	15,00-17,00	33,00-37,00

X10NiCrAlTi32-21 (1.4876)
Euro standard:	1.4876
Standard:	EN 10095 : 1999 Heat Resisting Steels and Nickel Alloys
Classification:	Austenitic heat-resisting steels
Steel grade equivalent:	USA: AISI B 163 German (DIN, WNr): X10NiCrAITi32-21, X10NiCrAITi32-2

Chemical composition % of the ladle analysis of grade X10NiCrAlTi32-21 (1.4876)
C	Si	Mn	P	S	Cr	Ni	Ti	Al
max 0,12	max 1,00	max 2,00	max 0,045	max 0,030	19,00-23,00	30,00-34,00	0,15-0,60	0,15-0,60

X10CrNiTi18-10 (1.4878)
Euro standard:	1.4878
Standard:	EN 10095 : 1999 Heat Resisting Steels and Nickel Alloys
Classification:	Austenitic heat-resisting steels
Steel grade equivalent:	USA: AISI 321H, UNS S32109

Chemical composition % of the ladle analysis of grade X8CrNiTi18-10 (1.4878)
C	Si	Mn	P	S	Cr	Ni	Inne
max 0,10	max 1,00	max 2,00	max 0,045	max 0,030	17,00-19,00	9,00-12,00	Ti x C max 0,80

H18N9S
Euro standard:	-
Standard:	EN 10095 Heat Resisting Steels and Nickel Alloys
Classification:	Austenitic heat-resisting steels
Steel grade equivalent:	Poland (PN): H18N9S

Chemical composition % of the ladle analysis of grade
C	Si	Mn	P	S	Cr	Ni
0,10-0,20	0,80-2,00	max 2,00	max 0,045	max 0,030	17,00-20,00	8,00-11,00

grades:

304H, S30409, 1.4948, X8CrNi18 10

304HCu

309, 1.4828, X15CrNiSi20 12, H20N12S2

310, 314, 1.4841, X15CrNiSi25 21, H25N20S2

310S, S31008, 1.4845, X6CrNi25 20, H23N18

310H, S31009

321H, S32109 , 1.4878, X8CrNiTi18 11

347H, S34709, 1.4961, X8CrNiNb18 11347HFG

310HcbN

Alloy 800H

Alloy 600H

1.4749, H25T/15H25T

and others to be agreed

norms:

ASTM A213/A213M, ASME SA213/SA213M

ASTM A312/A312M, ASME SA312/SA312M

ASTM A376/A376M, ASME SA376/SA376M

DIN 17458

EN 10216-5

UNI 6904

SEW 470

GOST 9941-81

and others to be agreed

Stalesia - pipes, tubes heat exchanger in good quality

A good choice: heatresisting pipes, heat-resisting tubes, heat resistant pipe, tube

Varratmentes hőálló csövek

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