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AISI 440C

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AISI 440C properties and heat treatment forged piece, Including AISI 440C application and specifications, We have all specifications,Including AISI 440C steel plate, AISI 440C sheet, AISI 440C square steel, AISI 440C flat bar,AISI 440C round bar,AISI 440C forgings, we can own production and sales.


Introduction to Our Products:

Specialized high quality steel

We have the advantages of equipment, technologies and price

forged/hot rolling/ extrusion of steel


We can produce the AISI 440C 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 AISI 440C and Standards

Designations
Germany: DIN 1.4125
United States: AMS 5618 , AMS 5630 , ASTM A276 , ASTM A314 , ASTM A473 , ASTM A493 , ASTM A580 , FED QQ-S-763 , MIL SPEC MIL-S-862 , SAE 51440C , SAE J405 (51440C) , UNS S44004
Chemical Composition
Element
Weight %
C
 0.95-1.20 
Mn
 1.00 
Si
 1.00 
Cr
 16.0-18.0 
P
 0.04 
S
 0.03 
Mo
 0.75 
Mechanical Properties
Properties
 Conditions 
T (°C)
Treatment
Density (×1000 kg/m3)
7.8
25
 
Poisson's Ratio
0.27-0.30
25
 
Elastic Modulus (GPa)
200
25
 
Tensile Strength (Mpa)
965 
25 
annealed, cold finished (bar)
Yield Strength (Mpa)
 
Elongation (%)
 
Reduction in Area (%)
 
Hardness (HRB)
97 
25 
annealed (bar) 
Thermal Properties
Properties
 Conditions 
T (°C)
Treatment
Thermal Expansion (10-6/ºC)
10.2 
0-100
 
Thermal Conductivity (W/m-K)
24.2 
100 
 
Specific Heat (J/kg-K)
460 
0-100 
 
Electric Properties
Properties
 Conditions 
T (°C)
Treatment
Electric Resistivity (10-9W-m)
600 
25 
 



Machining performance

Download AISI 440C the mechanical properties of the report, the report provides detailed performance analysis and application. Download >>


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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