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UKF Stainless Ltd
12 Buntsford Park Road
Bromsgrove
Worcestershire
B60 3DX
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| Telephone / Fax |
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01527 578686 |
| Fax: |
01527 837792 |
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 info@ukfstainless.co.uk |
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1.4057
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Introduction:
This steel is very deep
hardening, meaning that martensite is formed at very
slow cooling rates and in pieces up to 500mm in diameter.
Martensite in this steel is much lower hardness than
that of S41000 and S43100.
This makes this alloy more readily weldable.
The increased nickel content produces a better combination
of properties.
Not very resistant to aerated seawater. Welding is
difficult because high preheat and immediate postweld
tempering is necessary to minimize the risk of hardzone
cracking.
Metallurgy:
In 17%Cr steels, the microstructure changes
from ferritic to martensitic when combinations of
nickel (up to about 6%) and carbon in the absence
of stabilizing elements such as Ti or Nb are present.
Composition:
| Element |
Minimum
(%) |
Maximum
(%) |
| Chromium |
15.50 |
17.50 |
| Nickel |
1.50 |
2.50 |
| Manganese |
- |
1.00 |
| Carbon |
0.14 |
0.23 |
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Similiar Specifications:
ISO 683/13 9b
15.0-17.5%Cr, 1.5-2.5%Ni, <1%Mn, 0.14-0.23%C
EURONORM X19 CrNi 17 2
15.5-17.5%Cr, 1.5-2.5%Ni, <1.0%Mn, 0.14-0.23%C
ASTM UNS S43100 431
15.0-17.0%Cr, 1.25-2.5%Ni, <1.0%Mn, <0.20%C
BS 431S29
15-18%Cr, 2-3%Ni, <1%Mn, 0.12-0.20%C
DIN X20 CrNi 17 2 1.4057
15.5-17.5%Cr, 1.5-2.5%Ni, <1%Mn, 0.14-0.23%C
JIS SUS 431
15-17%Cr, 1.25-2.5%Ni, <1%Mn, <0.20%C
Product Forms:
Plate,sheet & strip
DIN X20 CrNi 17
2 1.4057 17440
Bar & long products
EURONORM X19
CrNi 17 2 88-86/1
ASTM UNS S43100
431 276, 479
BS 431S29 970/1
DIN X20 CrNi 17
2 1.4057 17440
JIS SUS 431 4303
Forgings & others
EURONORM X19
CrNi 17 2 88-86/1
ASTM UNS S43100
431 314, 473
BS 431S29 970/1
DIN X20 CrNi 17
2 1.4057 17440
JIS SUS 431 3214
General
ISO 683/13 9b
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Page Last Modified: 7/04/06 16:42
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