Custom 455* Stainless Steel UNS S45500

A martensitic precipitation hardening steel, Custom 455 stainless steel offers high strength combined with good corrosion resistance. Easily pliable in the annealed condition, Custom 455* can also be single aged to develop exceptionally high yield strength, combined with good ductility and toughness.

This stainless steel can be machined in the annealed condition, and welded similar to other precipitation hardening stainless steels.

Applications: Used where high strength and good corrosion resistance is required.

Solution Treating (Annealed): Condition A heat to 150/1550f (816/843c) and water quench. This is all that is required for aging, no hardening cycle is required.

Aging: Condition 900, H950, H1000, H1050, hold at four hours and air cool.

455 Stainless Chemistry Analysis
Carbon max 0.05% Manganese max 1.00%
Phosphorus max 0.03% Sulfur max 0.030%
Silicon max 1.0% Chromium   14.00 - 16.00%
Nickel   5.00-7.00% Columbium + Niobium   8 X C Minimum
Iron   Balance Molybdenum   0.50-1.00%

Corrosion Resistance

The following table is for reference only, many factors can affect the corrosive resistance, a corrosion test for each application should be applied.

Phosphoric acid Restricted Acetic Acid Restricted
Sodium Hydroxide Moderate Sea Water Restricted
Salt Spray Good Nitric Acid Moderate
Sulfuric Acid Restricted Humidity Excellent
Sour oil/gas Moderate    

Typical Room Temperature Tensile properties

Solution treated 1500/1550f (816/843c) and water quenched, followed by tempering at indicated temperature. Testing is taken from a 1” bar.
Aging Temperature Yield 0.2% Yield 0.2% Ultimate Tensile Strength   % Elongation in 2" {50.8mm} hardness Brinell
c
% Reduction of Area Charpy V-notch
                ft-lb J
F ksi mpa ksi Mpa          
Annealed 115 793 145 1000 14 31 60 70 95
H900 245 1609 250 1724 10 49 45 9 12
H950 225 1551 235 1620 12 48 50 14 19
H1000 200 1379 210 1448 14 45 55 20 27
H1050 175 1207 190 1310 15 40 55 35 48
Machinability:
Custom 455 * is difficult to machine, rigid tools, slower speeds and positive cuts combined with strong coolant flow will achieve the best results.
Specifications:
AMS 5617 (grade 2) ASTM A564 ASTM A705 EN10204 DIN3.1B
Shapes Manufactured:
Flat Bars, Square Bars, Round Bars, Rings, Hollows, Discs, Blocks and special Shapes. Send us a drawing to see how we can save you material and Machining time!

*Custom 455 is a registered trademark of Cartech

The information in this data sheet is for information only and should not be used for engineering.

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