Audited Supplier
powder stainless steel
Special Steel Bar
AISI, ASTM, DIN, JIS, GB, BS
Stainless Steel Scrap
Forged
Bar
Polished
High-strength Steel Plate, Wear Resistant Steel, Silicon Steel, Cold Heading Steel, Free Cutting Steel, Mold Steel
Die Steel Bar
2500-5500mm
HSS
Gear Hob
OEM
Smooth
N/M
6-400mm
China
7226911000
Product Description
Typical Applications:
Long-Wearing Specialty Cutlery
Plastic Injection and Extrusion Feed Screws and Dies
Non-Return Valve Components
Pelletizing Equipment
Wear Components for Food and Chemical Processing
Note: These are some typical applications. Your specific application should not be undertaken without independent study and evaluation for suitability.
Chemical Composition:
| CPM S30V | Carbon | Chromium | Vanadium | Molybdenum |
| 1.45% | 14.00% | 4.00% | 2.00% |
Physical Properties:
Elastic Modulus 32 X 106psi (221 GPa)
Density 0.27 lbs./in3 (7.47 g/cm3)
Thermal Conductivity
BTU/hr-ft-°F W/m-°K cal/cm-s-°C
200°F 93°C 10 17.31 4.13 X 10-2
Coefficient of Thermal Expansion
°F °C in/in/°F mm/mm/°C
70 - 400 (20 - 200) 6.1 X10-6 (11.0 X10-6)
70 - 600 (20 - 315) 6.4 X10-6 (11.5 X10-6)
Mechanical Properties:
Toughness (Transverse Charpy C-notch Testing)
| Grade | Impact Energy |
| CPM S30V | 10.0 ft. Lbs. |
| 154 CM | 2.5 ft. Lbs. |
| 440C | 2.5 ft.lbs. |
Edge Retention (CATRATesting Relative to 440C)
| Grade | % |
| CPM S30V | 145 |
| 154CM | 120 |
| 440C | 100 |
Corrosion Resistance Average Pitting Potential measurements from Polarization Curves run in 5% NaCl (Sodium Chloride) Solution at Room Temperature: (Higher voltage pitting potential indicates better corrosion resistance.)
Thermal Treatments:
Forging:
2100°F (1150°C) Do not forge below 1750°F (950°C).
Annealing:
Heat to 1650°F (900°C), hold 2 hours, slow cool no faster than 25°F (15°C) per hour to 1100°F (595°C), then furnace cool or cool in still air to room temperature.
Annealed Hardness: About BHN 255
Stress Relieving Annealed Parts:
Heat to 1100-1300°F (595-705°C), hold 2 hours, then furnace cool or cool in still air.
Hardened Parts:
Heat to 25-50°F (15-30°C) below original tempering temperature, hold 2 hours, then furnace cool or cool in still air.
Straightening:
Best done warm 400-800°F (200-430°C)
Hardening
Preheat:
Heat to 1550-1600°F (845-870°C) Equalize.
Austenitize:
1900-2000°F (1035-1095°C), hold time at temper ature 15-30 minutes.
Quench:
Air or positive pressure quench (2 bar minimum) to below 125°F (50°C), or salt or interrupted oil quench to about 1000°F (540°C), then air cool to below 125°F (50°C).
Temper:
Double temper at 400-750°F (200-400°C). Hold for 2 hours minimum each time. (See Table) A freezing treatment may be used between the first and second tempers. Freezing treatments help to attain maximum hardenability and must always be followed by at least one temper.
NOTE: For optimum stress relieving, CPM S30V may be tem pered at 1000-1025°F (540-550°C). Tempering in this range may result in a slight decrease in corrosion resistance.
Size Change:
+0.05 to +0.10% when fully martensitic. The presence of retained austenite may reduce the net growth. When tempering at 400-750°F (200-400°C), freezing treatments may be necessary to minimize retained austenite.
Recommended Heat Treatment:
Austenitize 1950°F (1065°C). Quench to below 125°F (50°C). Double temper at 600°F (315°C) 2 hrs. minimum each temper. Cool to hand warm between tempers. A freezing treatment may be added between tempers.
Aim hardness: 58-61 HRC.
