Stainless Steel

These are just a few of the grades that we can source - contact us with your requirements.
Available forms:

Nominal Chemical Composition (%)
Alloy
Ni
Cr
Fe
C
Other
 Description
303
9
13
bal
0.12
S 0.25

UNS S30300
Sulphur-added version of 304 for free machining.
304, 304L, 304H
9
18
bal
0.05 (304)
0.025 (304L)
0.6 (304H)
UNS S30400, S30403, S30409
General purpose stainless steel. Low carbon 304L where low heat sensitization from welding is required, 304H where additional strength at elevated temperatures.
316, 316L, 316H
11
17
bal
0.08 (316)
0.02 (316L)
0.6 (316H)
Mo 2.1
 UNS S31600, S31603, S31609
Superior corrosion resistance to 304 series from the addition of molybdenum. Low carbon 316L where low heat sensitization from welding is required, 316H where additional strength at elevated temperatures.
316Ti
11
17
bal
0.05
Mo 2.1
Ti 0.5
 UNS S31635
Titanium stabilized 316 where additional resistance to heat sensitization and intergranular corrosion is required.
316LMo
11
17
bal
0.03
Mo 3.0
 High molybdenum version of 316L for additional corrosion resistance.
317, 317L
13
19
bal
0.05 (317)
0.02 (317L)
Mo 3.25
 UNS S31700, S31703
Higher nickel, chrome and moly than 316 for additional resistance to corrosion.
309, 309S
13
23
bal
0.10 (309)
0.05 (309S)
Mn 1.6
Si 0.8
 UNS S30900, S30908
Moderate oxidation resistance and strength at elevated temperatures.
310, 310S
20
25
bal
0.10 (310)
0.05 (310S)
Mn 1.6
Si 0.8
 UNS31000, S31008
Superior oxidation resistance and strength at elevated temperatures to 309.
321, 347, 348
10
18
bal
0.06
Ti 0.5 (321)
Nb 0.3 (347)
Nb+Ta 0.6 (348)
 UNS S32100, S34700, S34800
Stabilised versions of 304 for reduced heat sensitization and resistance to intergranular corrosion.
410, 410S
12.5
bal
0.12 (410)
0.05 (410S)
UNS 41000, S41008
Basic martensitic stainless with moderate corrosion and scaling resistance. 410 is heat treatable for increased strength.
416
12.5
bal
0.12
S 0.15 min
Mo 0.4
 UNS S41600
Heat treatable, free machining martensitic stainless steel.
431
2
16
bal
0.18
UNS S43100
Hardenable stainless with excellent strength and corrosion resistance comparable to 302.
440C
17
bal
1.10
Mo 0.4
 UNS S44004
Heat treatable grade with highest hardness of all stainlesses. Moderate corrosion resistance.
446
25
bal
0.05
0.08
 UNS S44600
Ferritic, non-heat treatable stainless with good resistance to high temperature corrosion and oxidation.
17-4 (630)
4
16
bal
0.05
Cu 4.0
Nb+Ta 0.3
 UNS S17400
Heat treatable stainless. Ductile in when annealed, high strength with a single hardening treatment. Moderate corrosion resistance.
2205
5.5
22
bal
0.03
Mo 3.3
N 0.14
 UNS S31803
Most common of the duplex (austenitic-ferritic) grades with corrosion resistance superior to 317 grades and high strength.
F-255
5.5
25.5
bal
0.03
Mo 3.4
Cu 2.0
N 0.2
 UNS S32550
Excellent corrosion resistance from seawater, acids and salts. Has high strength and good weldability.
2507
7
25
bal
0.03
Mo 4.0
N 0.3
 UNS S32750
Superduplex stainless steel with superior resistance to severe chloride corrosion.
Zeron 100
7
25
bal
0.02
Mo 3.5
Cu 0.7
N 0.25
W 0.7
 UNS S32760
Superduplex stainless steel with superior resistance to severe chloride corrosion.
904L
25.5
21
bal
0.02
Mo 1.5
 UNS N08904
Highly alloyed austenitic stainless steel with superior corrosion resistance to 300 series alloys.
AL-6XN
24
20.5
bal
0.02
Mo 6.3
N 0.2
 UNS N08367
6% molybdenum super-austenitic stainless with high strength and toughness. Superior resistance to chloride pitting and crevice corrosion, Suitable for high-chloride environments such as seawater.
Nitronic 50
12.5
22
bal
0.04
Mn 5.0
Mo 2.2
Nb 0.2
N 0.3
Si 0.06
 UNS S20910
Combines high strength and corrosion resistance. Often used in fasteners, marine hardware, pumps and shafts.
Nitronic 60
8.5
17
bal
0.08
Mn 8.0
N 0.012
Si 4.0
 UNS S21800
Good corrosion resistance with excellent resistance to galling & seizing. Fasteners, pump shafts, valve seats, bearings.