Custom 455®
UNS S45500
Description
Custom 455 is age-hardenable martensitic steel with many favorable properties, including excellent formability and machinability (hot and cold), high yield strength and toughness, excellent corrosion resistance to atmospheric environments, age-hardenability with only one treatment, and good ductility. Due to these good performances, the grade is used in particular in the manufacture of instruments for the medical sector (drills, etc.), in general mechanics, in the food industry and in the automotive sector.
Chemical Component
| Cr | Ni | Si | C | Mn | Mo | Cu | S | P | Nb + Ta | Ti | Fe |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 11.00-12.50% | 7.50-9.50% | 0.50% max | 0.05% max | 0.50% max | 0.50% max | 1.50-2.50% | 0.030% max | 0.040% max | 0.10-0.50% | 0.080-1.40% | Balance |
Basic Information
| Items | Custom 455® |
|---|---|
| Catalog | ACMA-Fe-A035 |
| Density | 0.28 lb/in3, 7.75 g/cm3 |
| Electrical Resistivity, ohm-cir-mil/ft | At 70 °F, Condition A: 545.0 At 70 °F, Condition H 950: 456.0 |
| 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 10-6; 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 |
Material Forms
Alfa Chemistry offers Custom 455® in a variety of forms, including Coil, Strip, Foil, Ribbon, Wire, Bar, Plate, Tube.
Mechanical Properties
- Mechanical properties at room temperature properties: annealed typical
| Conditions | Ultimate Tensile Strength | Yield Strength | Elongation | Hardness |
|---|---|---|---|---|
| At gauge: 0.16 inches (4.06 mm) | 160 KSI (1103 MPa) | 135 KSI (930 MPa) | 8% | Re 33 |
| At gauge: 0.050 inches (1.27 mm) | 160 KSI (1103 MPa) | 150 KSI (1034 MPa) | 6% | Re 34 |
- Mechanical properties at room temperature properties: age hardened typical
| Conditions | Ultimate Tensile Strength | Yield Strength | Elongation | Hardness |
|---|---|---|---|---|
| H900: At gauge: 0.160 inches (4.06 mm) | 260 KSI (1792 MPa) | 205 KSI (1724 MPa) | 3% | Re 51 |
| H900: At gauge: 0.050 inches (1.27 mm) | 260 KSI (1792 MPa) | 250 KSI (1724 MPa) | 3% | Re 51 |
| H950: At gauge: 0.160 inches (4.06 mm) | 250 (1724 MPa) | 240 (1655 MPa) | 4% | Re 48 |
| H950: At gauge: 0.050 inches (1.27 mm) | 250 KSI (1724 MPa) | 240 KSI (1655 MPa) | 4% | Re 47 |
| H1000 At gauge: 0.160 inches (4.06 mm) | 220 KSI (1517 MPa) | 210 KSI (1448 MPa) | 6% | Re 46 |
| H1000 At gauge: 0.050 inches (1.27 mm) | 220 KSI (1517 MPa) | 210 KSI (1448 MPa) | 5% | Re 44 |
Additional Properties
Corrosion Resistance: Refer to NACE (National Association of Corrosion Engineers) for recommendations.
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".
Specifications
Coil, Strip, Foil, Ribbon, Wire, Bar, Plate, Tube: AMS 5617, AMS 5860, ASTM A564, ASTM A693, MIL-S-83311
Applications
- Medical devices
- Medical instrument
- Heat Exchangers
- Surface Condensers
- Needles
- Pins
- Conveyors
- Food Processing
* Technical data included herein should be used as a guideline only, and should not be construed as maximum or minimum values for specification or for final design, or for a particular use or application. The data may be revised anytime without notice.
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Alfa Chemistry is a manufacturer of standard & custom specialty metals & alloys. We stock a wide variety of alloys in different shapes and specifications. If you can't find the product or specification you need, please contact us directly.
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