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AISI 440C Stainless Steel Coil Strip 15 X 0,61 Mm For Fruit Knife Blades

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China JIANGSU MITTEL STEEL INDUSTRIAL LIMITED certification
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AISI 440C Stainless Steel Coil Strip 15 X 0,61 Mm For Fruit Knife Blades

AISI 440C Stainless Steel Coil Strip 15 X 0,61 Mm For Fruit Knife Blades
AISI 440C Stainless Steel Coil Strip 15 X 0,61 Mm For Fruit Knife Blades AISI 440C Stainless Steel Coil Strip 15 X 0,61 Mm For Fruit Knife Blades AISI 440C Stainless Steel Coil Strip 15 X 0,61 Mm For Fruit Knife Blades

Large Image :  AISI 440C Stainless Steel Coil Strip 15 X 0,61 Mm For Fruit Knife Blades

Product Details:
Place of Origin: China
Brand Name: MITTEL TISCO BAO STEEL
Certification: SGS ISO MTC
Model Number: 440C
Payment & Shipping Terms:
Minimum Order Quantity: 300KGS
Price: 2.5 USD/KG
Packaging Details: Wooden Box
Delivery Time: 7 Days
Payment Terms: L/C, T/T
Supply Ability: 50000KGS

AISI 440C Stainless Steel Coil Strip 15 X 0,61 Mm For Fruit Knife Blades

Description
Length: Customer's Request,in Coil,500-12000MM Grade: 400 Series 440C
Application: Construction,Kitchenware,Medical Instruments,Industry Type: Cold Rolled Coil
Standard: ASTM,AISI,JIS,DIN Width: 10mm-1250mm
Surface: 2B Technique: Cold Rolled
Thickness: 0.15-3.0mm Edge: Mill Edge Slit Edge
Price Term: CIF CFR FOB EX-WORK Special Use: Stainless Steel
High Light:

Fruit Blades Stainless Steel Coil Strip

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AISI 440C Stainless Steel Coil

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10mm Stainless Steel Coil Strip

AISI 440C Stainless Steel Coil Strip 15 x 0,61 mm Used For Fruit Knife Blades

 

GENERAL PROPERTIES

Stainless steels are high-alloy steels which have high corrosion resistance compared to other steels due to the presence of large amounts of chromium. Based on their crystalline structure, they are divided into three types such as ferritic, austenitic, and martensitic steels. Another group of stainless steels are precipitation-hardened steels. They are a combination of martensitic and austenitic steels.

Grade 440C stainless steel is a high carbon martensitic stainless steel. It has high strength, moderate corrosion resistance, and good hardness and wear resistance. Grade 440C is capable of attaining, after heat treatment, the highest strength, hardness and wear resistance of all the stainless alloys. Its very high carbon content is responsible for these characteristics, which make 440C particularly suited to such applications as ball bearings and valve parts.

APPLICATIONS

Typical applications include:

  • Rolling element bearings
  • Valve seats
  • High quality knife blades
  • Surgical instruments
  • Chisels

SPECIFICATIONS

UNS: ASTM/ASTE S44000

DIN: 1.4125

 

CORROSION RESISTANCE

Good resistance to the atmosphere, fresh water, foods, alkalies and mild acids. Best resistance in the hardened and tempered and passivated condition. A smooth polished surface also assists.

The corrosion resistance of grade 440C approximates that of grade 304 in many environments.

HEAT RESISTANCE

Not recommended for use in temperatures above the relevant tempering temperature, because of reduction in mechanical properties by over-tempering.

HEAT TREATMENT

Annealing – Full anneal – 850-900°C, slow furnace cool to about 600°C and then air cool. Sub-critical Annealing – 735-785°C and slow furnace cool.

Hardening – Heat to 1010-1065°C, followed by quenching in warm oil or air. Oil quenching is necessary for heavy sections. Immediately temper at 150-370°C to obtain a wide variety of hardness values and mechanical properties as indicated in the accompanying table.

Tempering in the range 425-565°C is to be avoided because of reduced impact resistance and corrosion resistance. Tempering in the range 590-675°C results in lower hardness (the product become machinable) and high impact resistance.

WELDING

If welding is necessary pre-heat at 250°C and follow welding with a full anneal. Grade 420 filler will give a high hardness weld (although not as high as the 440C), but 309 or 310 will produce soft welds with higher ductility.

MACHINING

In the annealed condition this grade is relatively easily machined; approximately the same as for high speed steel. Chips are tough and stringy so chip breakers are important. If these grades are hardened machining becomes more difficult and probably impossible.

 

Compostion

Grade   C Mn Si P S Cr Mo Ni N
440C min.
max.
0.95
1.20
-
1
-
1
-
0.04
-
0.030
16.00
18.00
-
0.75
- -

Mechanical Properties

Tempering Temperature (°C) Tensile Strength (MPa) Yield Strength 0.2% Proof (MPa) Elongation (% in 50mm) Hardness Rockwell (HR C) Impact Charpy V (J)
Annealed* 758 448 14 269HB max# -
204 2030 1900 4 59 9
260 1960 1830 4 57 9
316 1860 1740 4 56 9
371 1790 1660 4 56 9
* Annealed properties are typical for Condition A of ASTM A276# Brinell Hardness is ASTM A276 specified maximum for annealed 440A, B and C.

Physical Properties

Grade Density (kg/m3) Elastic Modulus (GPa) Mean Coefficient of Thermal Expansion (mm/m/°C) Thermal Conductivity(W/m.K) Specific Heat
0-100°C (J/kg.K) Electrical Resistivity (nW.m)
      0-100°C 0-200°C 0-600°C at 100°C at 500°C    
440 C 7650 200 10.1 10.3 11.7 24.2 -

AISI 440C Stainless Steel Coil Strip 15 X 0,61 Mm For Fruit Knife Blades 0AISI 440C Stainless Steel Coil Strip 15 X 0,61 Mm For Fruit Knife Blades 1AISI 440C Stainless Steel Coil Strip 15 X 0,61 Mm For Fruit Knife Blades 2 

 

 

Contact Details
JIANGSU MITTEL STEEL INDUSTRIAL LIMITED

Contact Person: Gao Ben

Tel: +8618068357371

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