Shaped, Flat, Square, Round, Fine Wire, Plated and Bare Wire Specifications: AMS5763, AMS 5773, AMS 5863, ASTM A 564, ASTM A693, ASTM A 959, Custom 450® stainless is a age-hardenable martensitic stainless steel that has very good corrosion resistance and moderate strength. Although the alloy has a yield strength higher than 100 KSI (689 MPa) in the annealed condition, it is easily fabricated. A single-step aging treatment develops higher strength with good ductility and toughness. Because it has corrosion resistance similar to alloy 304 stainless and with much higher yield strength, Custom 450® has been used in applications where alloy 304 was not strong enough. It has also replaced alloy 410 stainless directly on a strength basis where alloy 410 had insufficient corrosion resistance. Mechanical properties will depend on the aging temperature selected.
Medical devices
Aircraft parts
Power generation applications
Chemical processing
Nuclear applications
Chemistry Typical
Carbon: 0.05 max
Manganese: 1.00 max
Phosphorus: 0.030 max
Sulfur: 0.030 max
Silicon: 1.00 max
Chromium: 14.00-16.00
Nickel: 5.00-7.00
Molybdenum: 0.50-1.00
Copper: 1.25-1.75
Columbium: 8 x Carbon min
Iron: Balance
Physical Properties
Density: 0.280 lb/in³, 7.75 g/cm³
Electrical Resistivity: ohm-cm
At 68°F (20°C): 0.0000992
Specific Heat: BTU/lb-°F (J/g-°C):
73-216°F (23-102°C): 0.114 (0.477)
Thermal Conductivity: BTU-in/hr-ft²-°F (W/m-K): Condition H900
At 70°F (21°C): 104(15.0)
At (200°C): 18.2 W/m-K
At (500°C): 24.4 W/m-K
Mean Coefficient of Thermal Expansion: in/in-°F
75-200°F: 5.88 x 10
75-300°F: 5.62 x 10
75-400°F: 5.68 x 10
75-500°F: 5.80 x 10
75-600°F: 5.91 x 10
75-700°F: 5.98 x 10
75-800°F: 6.09 x 10
75-900°F: 6.13 x 10
75-1100°F: 6.17 x 10
Modulus of Elasticity: KSI (MPa)
28-29 x 10³ (193-200 x 10³) in tension
Mechanical Properties at Room Temperature
Properties: Annealed Typical
Ultimate Tensile Strength: 142 KSI (979 MPa)
Yield Strength: 118 KSI (814 MPa)
Elongation: 13%
Hardness: Rc 28
Properties: Tempered
Custom 450® can be cold rolled to achieve the temper properties required by specific
customers and/or manufacturing requirements. Contact Ulbrich Wire for details.
Age Hardened: Typical
H900
Ultimate Tensile Strength: 196 KSI (1351 MPa)
Yield Strength: 188 KSI (1296 MPa)
Elongation: 14%
Hardness: Rc 42.5
H950
Ultimate Tensile Strength: 187 KSI (1289 MPa)
Yield Strength: 184 KSI (1269 MPa)
Elongation: 16%
Hardness: Rc 41.5
H1000
Ultimate Tensile Strength: 173 KSI (1193 MPa)
Yield Strength: 169 KSI (1165 MPa)
Elongation: 17%
Hardness: Rc 39
H1050
Ultimate Tensile Strength: 160 KSI (1103 MPa)
Yield Strength: 152 KSI (1048 MPa)
Elongation: 20%
Hardness: Rc 37
H1150
Ultimate Tensile Strength: 142 KSI (979MPa)
Yield Strength: 92 KSI (634 MPa)
Elongation: 23%
Hardness: Rc 28
Additional Properties
Corrosion Resistance
Refer to NACE (National Association of Corrosion Engineers) for recommendations.
Standard Wire Finishes
Extra Clean: Extra clean is also referred to as “bright annealed” or “bright annealed and cold rolled”
Grease (round wire only): Drawn in a heavy grease produces an “Ultra bright” finish for decorative applications Soap (round wire only): Soap is used as a lubricant in the drawing process and is not removed. It acts as a lubricant during customer part forming operation. A soap finish is available in tempered products.
Plated: Many plating options are available.
Special finishes are available: Contact Ulbrich Wire Sales with special finish and plating
Forms
Continuous Coils
Cut to lengths
Precision cutting
Heat Treatment
Custom 450® 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”.
