Ferralium 255
Ferralium 255 properties and heat treatment forged piece, Including Ferralium 255 application and specifications, We have all specifications，Including Ferralium 255 steel plate, Ferralium 255 sheet, Ferralium 255 square steel, Ferralium 255 flat bar,Ferralium 255 round bar,Ferralium 255 forgings, we can own production and sales.
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We can produce the Ferralium 255 has the following specifications:
Round bar steel: 1mm to 3000mm
Square-shape steel: 1mm to 2000mm
Plate steel:0.1mm to 2500mm
Width: 10mm to 2500mm
Lenth: We can supply any lenth based on the customer's requirement.
Forging: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes
Tubings: OD: φ6-219 mm, with wall thickness ranging from 1-35 mm.
Finished goods condition: hot forging/hot rolling + annealing/normalizing + tempering/quenching + tempering/any conditions based on the customer's requirement
Surface conditions: scaled (hot working finish)/ground/rough machining/fine machining/based on the customer's requirement
Furnaces for metallurgical processing: electrode arc + LF/VD/VOD/ESR/Vacuum consumable electrode.
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Chemical composition % of the ladle analysis of grade Ferralium 255 and Standards
Principal Design Features
This alloy, commonly known as Ferralium Alloy 255, is essentially an enriched stainless steel of chromium-iron-nickel. It has good chemical corrosion resistance as well as being erosion resistant.
Applications
Applications include chemical process equipment in which chlorides or phosphoric acid are encountered. The good erosion resistance of the alloy also make it suitable for pumps and valves handling hot slurries that may be abrasive as well as corrosive.
Machinability
Although substantially harder than most other stainless steels, Alloy 255 can be successfully machined using most common methods. Slow speeds and heavy, constant feeds are required to overcome this alloys' tendency to work harden.
Forming
Alloy 255 can be successfully formed using all common methods of hot or cold working.
Welding
Alloy 255 can be successfully welded using most common methods, including GTAW, GMAW and SMAW procedures. When filler metal is required, for joining with a dissimilar of higher alloy content, select the filler corresponding to the higher alloy material for best results.
Heat Treatment
The alloy responds to annealing, but is not age-hardenable.
Forging
Forging may be done in the range of 2220 F to 1700 F. A re-anneal must be done following Forging in order to regain optimum corrosion resistance.
Hot Working
See "Forging".
Cold Working
This is a ductile alloy, similar to the stainless steels but stiffer, and it is readily cold worked by conventional means. An anneal must be done following cold work to restore corrosion resistance.
Annealing
Anneal at 1900 F and rapid cool.
Hardening
Hardens by cold work only, but should be used in annealed condition for corrosion resistance.
Density: 0.282
Specific Gravity: 7.81
Specific Heat: 0.113
Electrical Resistivity: 506
Melting Point: 2550
MCTE: 6.6
Magnetic Permeability: 3.5
MoETensile: 30.5
Machining performance
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Principal Design Features
One of the most widely used precipitation hardening grades in the business. While soft and ductile in the solution annealed condition, it is capable of high properties with a single precipitation or aging treatment. Characterized by good corrosion resistance, high harness, toughness and strength.
Machinability
Long, gummy chips characterize this alloys machinability. It can be machined in the annealed condition, however condition H1150M will yield best results. Post machining solution treatment of parts will be required prior to final hardening if machining in this condition.
Heat Treatment
CONDITION A--Soak at 1900 F (1038 C) for 30 minutes and cool below 60 F (16 C) for complete martensite transformation. CONDITION H 950- Treat Condition A material at 900 F(482 C) for 1 hour, air cool.. CONDITION H925, H1025, H1075, H1100, H1150- Soak solution treated material for 4 hours at specified temperature, air cool, CONDITION H1150M- Soak solution treated material at 1400 F (760 C) for 2 hours, air cool, then re-heat to 1150 F (620 C) for 4 hours and air cool.
Welding
Successfully welded by common fusion and resistance methods, this alloy should not be joined by oxyacetylene welding. AWS E/ER630 filler metal is recommended if required.
Forging
Soak for 1 hour at 2150 F (1177 C) prior to forging. Do not work below 1850 F (1010 C). Post-work solution treatment is required prior to final hardening.