SAE Alloy 52 Enquiry | Print this page
| Category | Type | Steel grade | Standard | Country |
|---|---|---|---|---|
| Grades | Special Alloy | Alloy 52 | SAE | USA |
Chemical composition % of the ladle analysis of grade Alloy 52
| C(％) | Si(％) | Mn(％) | P(％) | S(％) | Cr(％) | Ni(％) | Al(%) | Other(%) |
|---|---|---|---|---|---|---|---|---|
| 0.05 | 0.30 | 0.60 | 0.025 | 0.025 | 0.25 | 50.5 | 0.10 | Iron:Balance |
STRIP, FOIL & WIRE, ASTM F30
Applications
Applications for Alloy 52 include magnetic reed switches and seals that need controlled linear expansion to approximately 977°F (525 °C)
Description
Alloy 52 is a 50.50% nickel-iron alloy developed for glass-to-metal seals for some of the soft glasses and some ceramics. The alloy’s rate of thermal expansion is virtually constant to a temperature of about 1050°F (565°C).
Chemistry Typical
Carbon: 0.05 max
Silicon: 0.30 max
Manganese: 0.60 max
Nickel: 50.5 nom
Chromium: 0.25 max
Iron: Balance
Phosphorus: 0.025 max
Sulfur: 0.025 max
Aluminum: 0.10 max
Physical Properties
Density: 0.30 lb/in3, 8.30 g/cm3
Electrical Resistivity: ohm-cir-mil/ft, microhm-cm:
At 68°F (20°C): 258(43)
Thermal Conductivity: BTU-in/hr-ft2-°F (W/m•K):
68-212°F (20-100°C): 97(140)
Mean Coefficient of Thermal Expansion: µin/in-°F (µm/m-°C):
77-842°F (25-450°C): 5.4 (9.8)
Melting Range: 2600°F (1430°C)
Forms
Coil: Sheet, Strip, Ribbon
Wire – Profile, Round, Flat, Square
Mechanical Properties at Room Temperature
Properties: Annealed Typical Ultimate Tensile Strength: 78 KSI nom (536 MPa nom)
Yield Strength: 35 KSI nom (240 MPa nom) Elongation: 30% nom
Hardness: Rb 73 nom
Properties: Tempered Alloy 52 can be cold worked to various tempers. Contact Ulbrich Technical Service for additional information
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 Alloy 52 is non hardenable by heat treatment.
Welding For best results refer to: SSINA’s “Welding of Stainless Steels and Other Joining Methods”.
| Proof strength Rp0.2 (MPa) |
Tensile strength Rm (MPa) |
Impact energy KV (J) |
Elongation at fracture A (%) |
Reduction in cross section on fracture Z (%) |
As-Heat-Treated Condition | Brinell hardness (HBW) |
|---|---|---|---|---|---|---|
| 399 (≥) | 581 (≥) | 34 | 33 | 22 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 242 |
| Property | Density kg/dm3 |
Temperature T °C/F |
Specific heat J / kgK |
Thermal conductivity W/mK |
Electric resistance µΩ·cm |
Modulus of elasticity kN/mm2 |
Expansion rate |
|---|---|---|---|---|---|---|---|
| 184 (≥) | 637 (≥) | 13 | 22 | 12 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 433 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 726 | 986 | 924 |
| Product type | Products | Dimension | Processes | Deliver Status |
|---|---|---|---|---|
| Plates / Sheets | Plates / Sheets | 0.08-200mm(T)*W*L | Forging, hot rolling and cold rolling | Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting |
| Steel Bar | Round Bar, Flat Bar, Square Bar | Φ8-1200mm*L | Forging, hot rolling and cold rolling, Cast | Black, Rough Turning, Shot Blasting, |
| Coil / Strip | Steel Coil /Steel Strip | 0.03-16.0x1200mm | Cold-Rolled & Hot-Rolled | Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting |
| Pipes / Tubes | Seamless Pipes/Tubes, Welded Pipes/Tubes | OD:6-219mm x WT:0.5-20.0mm | Hot extrusion, Cold Drawn, Welded | Annealed, Solution and Aging, Q+T, ACID-WASHED |
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