Send Message
Home ProductsStainless Steel Round Bar

440C 9Cr18MoV High Carbon Stainless Steel Round Bar Cold Drawn For Knife

Certification
China JIANGSU MITTEL STEEL INDUSTRIAL LIMITED certification
China JIANGSU MITTEL STEEL INDUSTRIAL LIMITED certification
Customer Reviews
this is the second order l buy this company ,quality is very good ,same as europure quality .we will go on ccooperate with this company .

—— Andrew Greg - Turkey

200 ton Stainless steel sheet is arrived on 10th Oct 2014 , the quality is very good.,deliver time is very fast It's very lucky we find this factory

—— Mechile Kilar Chard - Brazial

We Have Cooperate With this Factory Many Years , Everything Goes Very Well.l Like This Factory !

—— Tony Hilton - Poland

This is Our Thrid Time Buy from Mittel,Quality is Very Goods ,We Are Glad to Find This Reliable Factory

—— Natalya Ugay-Russia

Quality is very good and delivery time very fast ,we want to do long terms business with this company

—— Pongpol Pluemsati-Thailand

I'm Online Chat Now

440C 9Cr18MoV High Carbon Stainless Steel Round Bar Cold Drawn For Knife

440C 9Cr18MoV High Carbon Stainless Steel Round Bar Cold Drawn For Knife
440C 9Cr18MoV High Carbon Stainless Steel Round Bar Cold Drawn For Knife 440C 9Cr18MoV High Carbon Stainless Steel Round Bar Cold Drawn For Knife

Large Image :  440C 9Cr18MoV High Carbon Stainless Steel Round Bar Cold Drawn For Knife

Product Details:
Place of Origin: China
Brand Name: MITTEL
Certification: SGS ISO
Model Number: 9Cr18MoV
Payment & Shipping Terms:
Minimum Order Quantity: 500KGS
Price: 3.5 USD/KG
Packaging Details: Export Packing
Delivery Time: 10 DAYS
Payment Terms: L/C, T/T, Western Union, MoneyGram
Supply Ability: 50000 KGS

440C 9Cr18MoV High Carbon Stainless Steel Round Bar Cold Drawn For Knife

Description
OD: 10-350mm Surface: Bright And Black
Length: 1-12m Type: Hot Rolled Cold Drawn
Hardness: Asclient
Highlight:

ss round bars

,

stainless steel round rod

440C 9Cr18MoV Stainless Steel Round Bar 9Cr18MoV High Carbon Stainless Steel For Knife

440C Stainless steel is a type of modern steel and famous for its high corrosion resistant, wear resistance, strength and hardness qualities, among all the stainless alloys, capable of attaining (after heat treatment) the highest hardness (60 HRC). It has good resistance to the atmosphere, fresh water and mild acids. It has best resistance in the hardened, tempered and passivated condition. It allows creating a smooth polished surface and Razor sharp edges. It is being used in cutting instruments, rolling element bearings, valve seats, high quality knife blades, surgical instruments, chisels, ball bearings and valve parts and most commonly used in the production of Cutting tools, including Haircutting Scissors, daggers and swords.

Grades 440A and 440B are identical except for slightly lower carbon contents (0.60 – 0.75% and 0.75 – 0.95% respectively), they attain lower hardness but have slightly higher corrosion resistances. Although all three versions of this grade are standard grades, in practice 440C is more available than the A or B variants.

Another alloy 440F (UNS S44020) also exists, with the same high carbon content as 440C.

440 Steel family, there is a new modern kind of steel, known as 440V steel. Basically, it is the advancement of 440C steel. This steel has same level of hardness like 440C, but it has more corrosion resistant ability and more machine-ability.

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

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

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

Welding
If welding is necessary pre-heat at 250C and follow welding with a full anneal. Grade 420 filler will give a high hardness weld (not as high as the 440C). Generally welding of 440C is not recommended due to its hardening capability which can lead to the formation cracks within or near the weld.

Machining
In the annealed condition this grade is relatively easily machined; approximately the same as for high speed steel. If this grade is hardened machining becomes very difficult and probably impossible.

Composition
Chemical Composition ranges of 440C stainless steel

Grade440C
Ingredients Min. Max.
Carbon 0.95 1.20
Manganese 1.00
Silicon 1.00
Phosphorus 0.040
Sulphur 0.030
Chromium 16.00 18.00
Molybdenum 0.75
Iron Balance

440C Physical Properties
Physical properties for grade 440 stainless steels.

Grade Density (kg/m3) Elastic Modulus (GPa) Mean Coefficient of Thermal Expansion (mm/m/C) Thermal Conductivity (W/m.K) Specific Heat
0-100C (J/kg.K)
Electrical Resistivity (nW.m)
0-100C 0-200C 0-600C at 100C at 500C
440A/B/C 7650 200 10.1 10.3 11.7 24.2 460 600

440C Related Specifications

USA Germany Japan Australia
ASTM A276-98b 440C
SAE 51440C AISI 440C
UNS S44004
W.Nr 1.4125 X105CrMo17 JIS G4303 SuS 440C AS 2837-1986 440C

 

440C 9Cr18MoV High Carbon Stainless Steel Round Bar Cold Drawn For Knife 0440C 9Cr18MoV High Carbon Stainless Steel Round Bar Cold Drawn For Knife 1

 

Contact Details
JIANGSU MITTEL STEEL INDUSTRIAL LIMITED

Contact Person: Mr. Gao Ben

Tel: +86-18068357371

Fax: 86-0510-88680060

Send your inquiry directly to us (0 / 3000)