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Engine Valve Steels

   


Internal Combustion Engine Valve Steels :
Engine Valve Steels graded highly alloyed (Mn-ni-cr-Mo-N) magnetic and Non-magnetic steels, used for inlet & Exhaust Valves and shafts for Bimetallic Valves, which function under severly stressed conditions.

Intemation Standards of Valve Steels


IS
DIN
BS
SAE
JIS
X45Cr9Si3
/X50Cr9Si2
1.4718
X45CrSi93
EN52
HNV3
SUH 1/
SUH 11
Cr11SI2Mo1
1.4731
X40CrSimo82
--
--
SUH 3
X85CrMOv18-2
1.4748
X85CrMoV182
--
--
--
X55Cr21Mn8Ni2N
1.4875
X55CrMnNiN208
21-2N
EV 12
--
X53Cr22Mn9Ni4N
1.4871
X53CrMnNiN219
21-4N
EV 8
SUH 35
X20Cr21Ni12N
--
21.12 N
EV4
SUH 37
-- 1.4866
X33CrNiMN238
23-8N EV16 --
-- 1.4882
X50CrMnNiNb219
21-43 EV 8+Nb --


Chemical Combustion

DIN C Si Mn Pmax S max Cr Mo Ni N V W Nb
1.4718

0.40
0.50
2.75
3.75
0.80
max
0.040 0.040 7.50
9.50
-- 0.50
max
-- -- -- --
SUH 11 0.45
0.55
1.00
2.00
0.60
max
0.040 0.035 7.50
9.50
-- 0.60
max
-- -- -- --
1.4731 0.35
0.45
1.80
2.50
0.60
max
0.040 0.040 10.00
12.00
0.70
1.30

0.60
max

-- -- -- --
1.4748 0.80
0.90
1.00
max
1.50
max
0.040 0.030 16.50
18.50
2.00
2.50
-- -- 0.30
0.60
-- --
1.4875 0.50
0.60
1.00
max
7.00
9.50
0.050 0.035 20.00
22.00
-- 1.50
2.75
0.20
0.40
-- -- --
1.4871 0.48
0.58
0.25
max
8.00
10.00
0.050 0.035 20.00
23.00
-- 3.25
4.50
0.38
0.55
-- -- --
21-12N 0.15
0.25
0.75
1.25
1.50
max
0.050 0.035 20.00
22.00
-- 10.50
12.50
0.15
0.30
-- -- --
1.4866 0.28
0.38
0.50
1.00
1.50
3.50
0.040 0.030 22.00
24.00
-- 7.00
9.00
0.25
0.50
-- -- --
1.4882 0.45
0.55
0.45
max
8.00
10.00
0.040 0.030 20.00
22.00
-- 3.50
5.00
0.40
0.60
-- 0.80
1.50
1.90
2.50



Size Range

Dia. : 5.00 mm to 40mm
Dim. Tol. : h9, +/-0.05, +/-0.05, +/-0.10 and Black



Supply Conditions

Martensitic grades are supplied in the Hot Rolled, Annealed or Hardened & Tempered Condition.
Austentic grades are suppplied in Hot Rolled & Solution Annealed Condition.
Centreless ground/ Peeled/Hot Rolled Black condition.

For Enquiries please contact
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