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| Mailing Address |
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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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| Tel: |
01527 578686 |
| Fax: |
01527 837792 |
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| Email |
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 info@ukfstainless.co.uk |
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S30908 (309S)
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Introduction:
Compared with the 18Cr9-10Ni grades which maintain
strength and scaling resistance up to 700-800°,
this steel has scaling resistance up about 1000°C
in air. It is part of the family of 23Cr12Ni stainless
steels which differ in their carbon content and the
stabilization of it with niobium:
| S30900
309 |
X
15 CrNi 23 12 |
0.20%C
max |
| S30908
309S |
X
6 CrNi 22 12 |
0.08%C
max |
| S30940
309Nb |
- |
0.08%C
max |
| |
Nb=10xC
to 1.1% |
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This higher carbon grade exhibits
slightly higher creep and stress rupture strength
at 700-900°C but ASME II does not differentiate
this in its design stresses. Performance in corrodents
and under impact at ambient temperatures may be influenced
by various phases that may precipitate during prolonged
high temperature exposures.
Composition:
| Element |
Minimum
(%) |
Maximum
(%) |
| Chromium |
22.00 |
24.00 |
| Nickel |
12.00 |
15.00 |
| Manganese |
- |
2.00 |
| Carbon |
- |
0.08 |
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Similiar Specifications:
ISO 4955 H14
22-24%Cr, 12-15%Ni, <2%Mn, <0.08%C
EURONORM X6 CrNi 22 13
21-23%Cr, 12-15%Ni, <2%Mn, <0.08%C
ASTM UNS S30908 309S
22-24%Cr, 12-15%Ni, <2%Mn, <0.08%C
BS 309S16
22-25%Cr, 13-16%Ni, <2%Mn, <0.08%C
DIN/SEW X7 CrNi 23 14 1.4833
21-23%Cr, 12-15%Ni, <2%Mn, <0.08%C
JIS SUS 309S
22-24%Cr, 12-15%Ni, <2%Mn, <0.08%C
Applications:
Heat resisting tubing in recuperaters, conveyer parts, Heat-treating equipment Petrochemical plant,
Welding consumables for making dissimilar metal joints
between austenitic and structural carbon or
low alloy steels.
Product Forms:
Plate, Sheet and Strip
ASTM UNS S30908
309S 167, 240, 480
BS 309S16 1501/3
JIS SUS 309S 4304, 4305, 4307
Bar and Long Products
ASTM UNS S30908
309S 276, 479, 484
JIS SUS 309S 4303, 4308, 4318, 4311
Forgings and Others
ASTM UNS S30908
309S 314, 473, 484
Tube and/or Pipe
JIS SUS 309S 3463, 3459
ASTM UNS S30908
309S 213, 249, 450, 511, 554
Pipe
ASTM UNS S30908
309S 312, 358, 409, 530, 813, 814
General
ISO 4955 H14
EURONORM X6
CrNi 22 13
BS 309S16 5500
DIN/SEW X7 CrNi
23 14 1.4833 SEW470
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Page Last Modified: 7/04/06 17:50
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