Cpm154 Material Powder Metallurgy Stainless Steel Black Surface Forging Steel Hot Rolled Steel Flat Bar Round Bar

• Type: Special Steel Bar
• Standard: AISI, ASTM, DIN, JIS, GB, BS
• Composition: Stainless Steel Scrap
• Technique: Forged
• Shape: Bar
• Surface Treatment: Polished
• Special Use: High-strength Steel Plate, Wear Resistant Steel, Silicon Steel, Cold Heading Steel, Free Cutting Steel, Mold Steel
• Application: Die Steel Bar
• Length: 2500-5500mm
• Material: HSS
• Usage: Gear Hob
• Customized Support: OEM
• Transport Package: N/M
• Specification: 6-400mm
• Trademark: Smooth
• Origin: China
• HS Code: 7226911000
• Production Capacity: 1000ton/Month

Product Description

Detailed Photos

Product Description

 

CPM 154 is powder metallurgy stainless steel. The CPM manufacturing process produces a uniform distribution of the carbides in this grade, giving this CPM 154 easier grinding and polishing, plus better toughness, than conventional 154 CM, while retaining similar heat treat response and wear properties. CPM 154 offers better corrosion resistance, better wear resistance and better hot-hardness than 440C, plus higher toughness. For knifemakers, it offers better edge retention and chipping resistance than 440C.

The CPM process produces very homogeneous,high quality steel characterized by superior dimensional stability,grindability and toughness compared to steels produced by conventional processes.

Typical Applications:
Cutlery
Bearings
Corrosion resistant tooling

Note: These are some typical applications. Your specific application should not be undertaken without independent study and evaluation for suitability.

Chemical Composition:

CPM154	Carbon	Chromium	Molybdenum
	1.05%	14.00%	4.00%

   
Machinability:
Because of the CPM processing, CPM 154 is easier to machine and grind than standard 154 CM. General machining parameters are similar to 154 CM and 440C.

Thermal Treatments:
Annealing: Heat to 1650°F (900°C), hold 2 hrs., slow cool no faster than 25°F (15°C) per hour to 1200°F (650°C), then furnace cool or cool in still air to room temperature. Crucible 154 CM can be cycle annealed by heating to 1600°F (900°C). hold 2 hrs., cool to 1300°F (704°C), hold 4 hrs., then air cool.

Annealed Hardness: About BHN 235

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 the original tempering temperature, hold 2 hours, then furnace cool or cool in still air.

Hardening
Preheat: 
Heat to 1400°F (760°C) Equalize.

Austenitize:
1900-2000°F (1037-1093°C), hold time at temperature 30-60 minutes.

Quench:
Oil or positive pressure (4 bar minimum) to below 125°F (50°C), or salt quench to about 1000°F (540°C), then air cool to below 125°F (50°C). Salt bath treatment, if practical, will ensure the maximum attainable toughness for a given hardening treatment.

Temper:
Twice at 400-1200°F (204-650°C), 2 hours minimum each time. Note: As with all martensitic stainless steels, tempering at 800-1100°F (425-600°C) will result in sensitization which causes a minor reduction in both corrosion resistance and toughness. We recommend that this tempering range be avoided.

Aim hardness: HRC 55-62

Note: Properties shown throughout this data sheet are typical values. Normal variations in chemistry, size and heat treat conditions may cause deviations from these values. For additional data or metallurgical engineering assistance, consult

Surface Treatments:
If surface treatments such as CVD, PVD, or nitriding are used, ensure that the coating process temperature is below the tempering temperature. Nitriding or tempering at 900F or higher may reduce the corrosion resistance of CPM 154 or any other stainless steel.