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Obsolete Materials List

The tables on this page list materials in stock at Specialty Steel Supply that are considered obsolete. These are offered at the discounted prices shown. Prices do not include shipping. There is a 500 lbs. minimum order. This list was last updated November 18, 2024 and materials listed are subject to prior sale. Please contact us to confirm availability.

Obsolete Materials List - Specialty Steel Supply Stainless Steel Products

Product Datasheets 

Stainless Steel Families

Family
Austenitic stainless steel
Ferritic stainless steel
Martensitic stainless steel
Duplex stainless steel
Precipitation hardening stainless steel
Summary
- Contains a minimum of 16% chromium and 6% nickel
- Most widely used stainless steels in the world
- Amount of chromium ranges between 10.5% to 18%
- Low nickel content (up to 1%) makes it especially cost effective
- Lower thermal expansion coefficient and higher thermal conductivity than austenitic stainless steel
- Chromium content ranges between 10.5% and 18%, with 0.15% carbon and 0.1% manganese
- Carbon content enables tempering and hardening
- High chromium and low nickel content
- Combines the best of the austenitic and ferritic families
- Annealed structure is 50% austenitic and 50% ferritic
- Low nickel content means low cost
- Contains 17% chromium and 4% nickel
- Strength can be developed by adding titanium, aluminium and other alloys
Characteristics
- Excellent corrosion resistance
- Excellent performance at both high and low temperatures
- Non magnetic when annealed
- Superb hygienic qualities with outstanding cleanability
- Good corrosion resistance
- Magnetic
- Resists stress corrosion cracking
- Corrosion resistance in mild environments
- Magnetic
- Inability to be cold formed
- Excellent pitting-and-crevices corrosion resistance
- High resistance to stress corrosion cracking
- High yield strength
- Poor formability and machinability
- Magnetic
- Good to excellent corrosion resistance
- Can develop high strength with simple heat treatments
- Welding can reduce corrosion resistance by over-aging and sensitisation
- Magnetic
Use
- Common to food and healthcare applications
- Popular for manufacturing outdoor enclosures
- Excellent for applications involving heat transfer, such as cooking utensils
- Also popular in the automotive industry for exhausts and fuel lines
- Knife blades
- Surgical instruments
- Razor blades
- Heat exchangers
- Offshore oil and gas installations
- Chemical and petrochemical plants
- Nuclear waste casks
- Turbine blades
- Aerospace industry
- Pulp and paper industry equipment
Weldability
High
Low
Low
High
Low
Ductility
High
Medium
Low
Medium
Medium
High Temp
Resistance
High
High
Low
Low
Low

Stainless Steel Grade Chart

Below includes the composition of stainless-steel grades.

A word about standards: The American Iron and Steel Institute (AISI) and the Society of Automotive Engineers (SAE) each devised steel specifications for years, which were often interchangeable. Due to the similarities, they were combined into one, overlapping AISI/SAE system. The AISI designation is no longer officially used, but the name is still used informally. EN are the standard for European stainless-steel grades, though AISI/SAE is extremely popular.

Designations
Austenitic Stainless Steel
Austenitic Stainless Steel
Austenitic Stainless Steel
Austenitic Stainless Steel
Austenitic Stainless Steel
Austenitic Stainless Steel
Austenitic Stainless Steel
Austenitic Stainless Steel
Austenitic Stainless Steel
Austenitic Stainless Steel
Austenitic Stainless Steel
Austenitic Stainless Steel
Martensitic Stainless Steel
Martensitic Stainless Steel
Martensitic Stainless Steel
Martensitic Stainless Steel
Martensitic Stainless Steel
Martensitic Stainless Steel
Martensitic Stainless Steel
Martensitic Stainless Steel
Martensitic Stainless Steel
Martensitic Stainless Steel
Martensitic Stainless Steel
Duplex Stainless Steel
Duplex Stainless Steel
PH Stainless Steel
PH Stainless Steel
Designations
AISI-type / SAE
302
303
304
304L
308
310
316
316L
317
321
347
904L
409
430
430F
444
410
416
420
431
440A
440B
440C
2205
2304
15-5 PH / 631
17-4 PH / 630
Designations
EN
1.4324
1.4305
1.4301
1.4307
1.4303
1.4845
1.4401
1.4404
1.4449
1.4541
1.4550
1.4539
1.4512
1.4016
1.4105
1.4521
1.4006
1.4005
1.4021
1.4057
1.4109
1.4112
1.4125
1.4462
1.4362
1.4568
1.4542
Chemical Composition AISI-Type/SAE & EN Standards (Major elements only) % content is a maximum unless a range is indicated
C, ≤
0.15
0.15
0.08
0.03
0.08
0.25
0.08
0.03
0.08
0.08
0.08
0.02
0.030
0.12
0.12
0.025
0.08-0.15
0.15
0.15, ≥
0.20
0.60-0.75
0.75-0.95
0.95-1.20
0.03
0.03
0.07
0.07
Chemical Composition AISI-Type/SAE & EN Standards (Major elements only) % content is a maximum unless a range is indicated
Mn, ≤
2.00
2.00
2.00
2.00
2.00
2.00
2.00
2.00
2.00
2.00
2.00
2.00
1.00
1.00
1.25
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
2.00
2.50
1.00
1.00
Chemical Composition AISI-Type/SAE & EN Standards (Major elements only) % content is a maximum unless a range is indicated
P, ≤
0.045
0.200
0.045
0.045
0.045
0.045
0.045
0.045
0.045
0.045
0.045
0.045
0.04
0.04
0.06
0.04
0.04
0.04
0.04
0.04
0.04
0.04
0.04
0.03
0.04
0.04
0.04
Chemical Composition AISI-Type/SAE & EN Standards (Major elements only) % content is a maximum unless a range is indicated
S, ≤
0.03
≥0.15
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.035
0.015
0.03
≥0.15
0.03
0.03
≥0.15
0.03
0.03
0.03
0.03
0.03
0.02
0.03
0.03
0.03
Chemical Composition AISI-Type/SAE & EN Standards (Major elements only) % content is a maximum unless a range is indicated
Si, ≤
0.75
1.00
1.00
1.00
1.00
1.50
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
Chemical Composition AISI-Type/SAE & EN Standards (Major elements only) % content is a maximum unless a range is indicated
Cr
17.0-19.0
17.0-19.0
18.0-20.0
18.0-20.0
19.0-21.0
24.0-26.0
16.0-18.0
16.0-18.0
18.0-20.0
17.0-19.0
17.0-19.0
19.0-23.0
10.5-12.5
16.0-18.0
16.0-18.0
17.5-19.5
11.5-13.5
12.0-14.0
12.0-14.0
15.0-17.0
16.0-18.0
16.0-18.0
16.0-18.0
22.0-23.0
21.5-24.5
14.0-15.5
15.5-17.5
Chemical Composition AISI-Type/SAE & EN Standards (Major elements only) % content is a maximum unless a range is indicated
Ni
8.0-10.0
8.0-10.0
8.0-11.0
8.0-11.0
10.0-12.0
19.0-22.0
10.0-14.0
10.0-14.0
11.0-15.0
9.0-12.0
9.0-12.0
23.0-28.0
-
-
-
1.00
-
-
-
1.25-2.50
-
-
-
4.5-6.5
3.0-5.5
3.5-5.5
3.0-5.0
Chemical Composition AISI-Type/SAE & EN Standards (Major elements only) % content is a maximum unless a range is indicated
Mo
-
-
-
-
-
-
2.00-3.00
2.00-3.00
3.0-4.0
-
-
4.00-5.00
6 x (C+N) to 0.65
-
-
1.75-2.50
-
-
-
-
≤0.75
≤0.75
≤0.75
3.0-3.5
0.05-0.60
-
-
Chemical Composition AISI-Type/SAE & EN Standards (Major elements only) % content is a maximum unless a range is indicated
N, ≤
0.10
-
-
-
-
-
-
-
0.10
0.10
-
0.10
-
-
-
0.035
-
-
-
-
-
-
-
0.14-0.20
0.05-0.60
-
-
Chemical Composition AISI-Type/SAE & EN Standards (Major elements only) % content is a maximum unless a range is indicated
Other Elements
≤, UOS
-
-
-
-
-
-
-
-
-
≥ Ti 5×(C+N), ≤ 0.70
≥ Cb 10 × C, ≤ 1.00
Cu 1.00-2.00
-
-
-
Ti+Cb 0.20+4 × (C+N)-0.80
-
-
-
-
-
-
-
-
-
2.5-4.5 Cu;
0.15-0.45 Nb
3.0-5.0 Cu;
0.15-0.45 Nb

Weight Formulas

Resources

Density Tables

Titanium and Titanium Alloys

6A1-4V
6A1-4V ELI
5A1-2.5Sn
5A1-2.5Sn ELI
6A1-6V-2Sn
8A1-1Mo-1V
8Mn
7A1-4Mo
4A1-4Mn
6A1-6Sn-4Zr-2Mo
C.P. 99.9%
.160
.160
.161
.162
.164
.158
.171
.162
.163
.164
.162

Nickel and Nickel Alloys

Inconel 600
Inconel 625
Inconel 718
Inconel X-750
Nickel 200
Monel
K-Monel
Duranickel
Waspaloy
Rene 41
N-155
Hastelloy B
Hastelloy C
Hastelloy W
Hastelloy X
.304
.305
.296
.298
.321
.319
.306
.298
.296
.298
.296
.334
.323
.326
.297

Aluminum and Aluminum Alloys

1100
2014
2024
2219
5056
5086
6061
6063
7075
.098
.101
.100
.103
.095
.096
.098
.098
.098

Stainless, Heat Resisting & Other Steels

300 Series
400 Series
15-5 PH
17-4 PH
17.7 PH
D6AC
L605
AM355
Carbon Steel
Alloy Steel
.290
.283
.283
.290
.290
.283
.330
.286
.283
.283

Copper and Copper Alloys

Aluminum Bronze
Beryllium Copper
Cupro Nickel
Free Mach. Copper
OFHC
Naval Brass
.294
.297
.323
.323
.323
.304

Magnesium and Magnesium Alloys

AZ31B
AZ61A
ZK60A
ZK60B
.064
.065
.066
.066

Iron and Iron Alloys

A-286
Invar
Chrome Moly
HII Tool Steel
M2 Tool Steel
M50 Tool Steel
.286
.289
.283
.281
.295
.283

Precious and Pure Metals

Beryllium
Bronze
Columbium
Copper
Gold
Manganese
Molybdenum
Platinum
Silver
Tantalum
Tungston
.067
.318
.310
.324
.698
.270
.369
.775
.379
.600
.697

Stainless and Alloys

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Specialty Steel Supply - Pinehurst, Texas

Specialty Steel Supply Inc. is one of the largest distributors of austenitic, precipitation hardened, duplex and martensitic stainless steels. We have a wide range of products and types of stainless steel round bar and our well trained staff offers many years of experience in all aspects of the steel industry. Our ability to procure and source metals from all parts of the world allows us to stay competitive in a global marketplace. We are committed to developing and servicing just in time inventory programs.

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Specialty Steel Supply

19201 Circle Lake Drive
Pinehurst, Texas 77362

info@specialtysteelsupply.com

Business Hours

Monday - Saturday - 8AM - 5PM
Sunday - Closed
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