Custom 455® UNS S45500

Strip, Coil, Foil, & Wire, AMS 5617, AMS 5860, ASTM A564, ASTM A693

Applications

Medical devices and instrument, needles, pins

Description

Custom 455® stainless steel, a martensitic age-hardenable stainless steel. It provides high strength with good corrosion resistance to atmospheric environments. This alloy is relatively soft and formable in the annealed condition. A single-step aging treatment develops exceptionally high yield strength with good ductility and toughness.

Chemistry Typical

Carbon: 0.05 max
Manganese: 0.50 max
Phosphorus: 0.040 max
Sulfur: 0.030 max
Silicon: 0.50 max
Chromium: 11.00-12.50
Nickel: 7.50-9.50
Molybdenum: 0.50 max
Copper: 1.50-2.50
Columbium + Tantalum: 0.10-0.50
Titanium: 0.080-1 .40
Iron: Balance

Physical Properties

Density: 0.28 lbs/in3 7.75 g/cm3

Electrical Resistivity: ohm-cir-mil/ft
At 70 °F, Condition A: 545.0
At 70 °F, Condition CH7950-.' 456.Q'e

Thermal Conductivity: BTU-in/hr-ft2-°F
At 212 °F : 125.0
At 392 °F : 137.0
At 572 °F : 148.0
At 752 °F : 162.0
At 932 °F : 172.0

Mean Coefficient of Thermal Expansion: in/in-°F
75-200 °F: 5.90 x 10-6
75-300 °F: 6.03 x 10-s
75-500 °F: 6.20 x 10-6
75-700 °F: 6.45 x 10-6
75-900 °F: 6.687 x 10-6

Modulus of Elasticity: ksi (MPa):
29 x 103 (200 x 103) in tension

Forms

Coil - Strip, Foil, Ribbon Wire - Profile, Round, Flat, Square

Mechanical Properties at Room Temperature

Properties: Annealed Typical

Ultimate Tensile Strength: 160 KSI (1103 MPa)
Yield Strength: 135 KSI (930 MPa)
Elongation: 8%
Hardness: Re 33

At gauge: 0.050 inches (1.27 mm)
Ultimate Tensile Strength: 160 KSI (1103 MPa)
Yield Strength: 150 KSI (1034 MPa)
Elongation: 6%
Hardness: Re 34

Properties: Tempered

Custom 455® can be cold worked to various tempers. Contact Ulbrich Technical Service for additional information.

Age Hardened: Typical

H900: At gauge: 0.160 inches (4.06 mm)

Ultimate Tensile Strength: 260 KSI (1792 MPa)
Yield Strength: 205 KSI (1724 MPa)
Elongation: 3%
Hardness: Re 51

H900: At gauge: 0.050 inches (1.27 mm)
Ultimate Tensile Strength: 260 KSI (1792 MPa)
Yield Strength: 250 KSI (1724 MPa)
Elongation: 3%
Hardness: Re 51

H950: At gauge: 0.160 inches (4.06 mm)
Ultimate Tensile Strength: 250 (1724 MPa)
Yield Strength: 240 (1655 MPa)
Elongation: 4% Hardness: Re 48

H950: At gauge: 0.050 inches (1.27 mm)
Ultimate Tensile Strength: 250 KSI (1724 MPa)
Yield Strength: 240 KSI (1655 MPa)
Elongation: 4%
Hardness: Re 47

H 1000 At gauge: 0.160 inches ( 4.06 mm)
Ultimate Tensile Strength: 220 KSI (1517 MPa)
Yield Strength: 210 KSI (1448 MPa)
Elongation: 6%
Hardness: Re 46

H1000 At gauge: 0.050 inches (1.27 mm)
Ultimate Tensile Strength: 220 KSI (1517 MPa)
Yield Strength: 210 KSI (1448 MPa)
Elongation: 5%
Hardness: Re 44

Additional Properties

Corrosion Resistance

Refer to NACE (National Association of Corrosion Engineers) for recommendations.

Finishes

# 1 - Hot rolled annealed and descaled. It is available in strip, foil and ribbon. It is used for applications where a smooth decorative finish is not required.
# 2D - Dull finish produced by cold rolling, annealing and descaling. Used for deep drawn parts and those parts that need to retain lubricants in the forming process. # 2B - Smooth finish produced by cold rolling, annealing and descaling. A light cold rolling pass is added after anneal with polished rolls giving it a brighter finish than 2D.
#BA- Bright annealed cold rolled and bright annealed
#CBA- Course bright annealed cold rolled matte finish and bright anneal
#2 - Cold Rolled
# 2BA- Smooth finish produced by cold rolling and bright annealing. A light pass using highly polished rolls produces a glossy finish. A 2BA finish may be used for lightly formed applications where a glossy finish is desired in the formed part. Polished - Various grit finish for specific polish finished requirements.

* Not All Finishes are Available for All Alloys - Consult Sales for Applicable Finishes.

Wire Finishes

XC - Extra clean bright annealed or bright annealed and cold rolled Grease - Ultra-bright finish (for decorative applications) Soap - Soap is not removed from tempered wire to act as a lubricant. * Contact Ulbrich Wire with special finish requests.

Heat Treatment

Custom 455® can be hardened by cold working and with a heat treatment.

Welding

For best results refer to: SSINA's "Welding of Stainless Steels and Other Joining Methods".

Limitation of Liability and Disclaimer of Warranty: In no event will Ulbrich Stainless Steels & Special Metals, Inc., be liable for any damages arising from the use of the information included in this document or that it is suitable for the 'applications' noted. We believe the information and data provided to be accurate to the best of our knowledge but, all data is considered typical values only. It is intended for reference and general information and not recommended for specification, design or engineering purposes. Ulbrich assumes no implied or express warranty in regard to the creation or accuracy of the data provided in this document.