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Maraging 300

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Maraging 300 properties and heat treatment forged piece, Including Maraging 300 application and specifications, We have all specifications,Including Maraging 300 steel plate, Maraging 300 sheet, Maraging 300 square steel, Maraging 300 flat bar,Maraging 300 round bar,Maraging 300 forgings, we can own production and sales.


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Specialized high quality steel

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forged/hot rolling/ extrusion of steel


We can produce the Maraging 300 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.

Ultrasonic inspection: 100% ultrasonic inspection for any inperfections or based on the customer's requirementExcellent service for all kinds of industries,with advantages of technologies, equipment and price.

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Chemical composition % of the ladle analysis of grade Maraging 300 and Standards

Principal Design Features
Maraging 300 alloy is a very high strength iron base, nickel , molybdenum, cobalt alloy. It may be age hardened to a strength level of 300 ksi ultimate with a hardness on the order of Rockwell C 53.

 Applications
Used for very high strength structural applications such as aircraft land gear components.

Machinability
Machinability is good, similar to that for 304 stainless steel.

Forming
Maraging 300 steel has good ductility and is readily formed by conventional methods.

Welding
The alloy is weldable by conventional methods, much the same as for 304 stainless steel.

Heat Treatment
Maraging steel is not heat treatable for hardening except by aging. See "Aging".

Forging
The alloy may be forged as for stainless 304 alloy.

Hot Working
Hot working of maraging steel may be done at temperatures in the 500 to 200 F range. Prolonged exposure at these temperatures may result in some age hardening. However a full aging treatment should be given.

Cold Working
The alloy is readily cold worked by conventional methods.

Annealing
Annealing, if required after cold working, can be done at 1900 F followed by rapid air cooling.

Aging
The high strength and hardness properties are a result of an aging Heat Treatment at 900 F

Tempering
Not applicable to this alloy.

Hardening
Maraging 300 hardens by cold working and by aging - see "Aging".

Density: 0.289

Specific Gravity: 8

Specific Heat: 0.108

Melting Point: 2575

Thermal Conductivity: 136

MCTE: 5.6

MoETensile: 27.5

 




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.





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