High-alloy steel –stainless chrome steel H18 PN-71/H-86020
Steel
grade


Standard

Chemical composition  (%)

C
Mn
Si
P
S
Cu
Cr
Ni
Mo
inne
H18
PN
0,90
1,05
max
0,80
max
0,80
max
0,040
max
0,030
max
0,30
17,00
19,00
max
0,60
-
-
95H18
95Ch18
95KH18
95X18
GOST
0,90
1,00
max
0,80
max
0,80
max
0,030
max
0,025
max
0,30
17,00
19,00
max
0,60
max
0,30
V max 0,20
W max 0,20
Ti max 0,20
X 105 CrMo 17
X105CrMo17

1.4125

DIN

W.nr
0,95
1,20
max
1,00
max
1,00
max
0,040
max
0,015
-
16,00
18,00
-
0,40
0,80
grade classified
as stainless stee

X 102 CrMo 17
X102CrMo17
1.3543

DIN

W.nr
0,95
1,20
max
1,00
max
1,00
max
0,040
max
0,015
-
16,00
18,00
-
0,40
0,80
grade classified
as bearing steel
for corrosion resistant 
X 90 CrMoV 18 X90CrMoV18

1.4112

DIN EN

W. nr
0,85
0,95
max
1,00
max
1,00
max
0,040
max
0,030
-
17,00
19,00
-
0,90
1,30
V 0,07-0,12
SUS 440 C
SUS440C
JIS
0,95
1,20
max
1,00
max
1,00
max
0,040
max
0,030
-
16,00
18,00
max
0,60
max
0,75
-
90 Cr 180
90Cr180
STAS
0,90
1,00
max
1,00
max
1,00
max
0,045
0,015
0,030
max
0,30
17,00
19,00
max
0,50
max
0,20
-
S 44004
S44004
440 C
440C
UNS
AISI
0,95
1,20
max
1,00
max
1,00
max
0,040
max
0,030
-
16,00
18,00
-
max
0,75
-
11Cr17
GB/T
0,95
1,20
max
1,00
max
1,00
max
0,035
max
0,030
-
16,00
18,00
max
0,60
max
0,75
-
Steel used for making surgical instruments, high-quality knives, bearings, bearings shells, valves and other parts which require 
abrasion resistance Resistant to atmospheric corrosion, natural waters with the exception of mine and sea water
Resistant to:
-Cold diluted salt solutions
-Some cold diluted organic and inorganic acids
-Fuel, liquid fuel, hot oil fumes
-Oils, greases
-Alcohol, food which do not contain salt or other preservative
-Hot diluted nitric acid
-Hot oxide

In the species H18 or equivalent (1.4125, 1.4112, 95X18) , we provide round-rolled bars, forgings,
round bars, cubes, bars, sheets.

Alfa-Tech Poland Alfa-Tech round bars www.atsteels.com Poland seamless tubes poland rury bezszwowe zaroodporne i specjalne importowane