• 1.2842, DIN 90MnCrV8, AISI O2 round bar
  • 1.2842, DIN 90MnCrV8, AISI O2 forging
  • 1.2842, DIN 90MnCrV8, AISI O2 sheet
  • 1.2842, DIN 90MnCrV8, AISI O2 flat bar
  • 1.2842, DIN 90MnCrV8, AISI O2 pipe
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1.2842, DIN 90MnCrV8, AISI O2

We can produce 1.2842, DIN 90MnCrV8, AISI O2 stainless steel round rods, 1.2842, DIN 90MnCrV8, AISI O2 forging,sheet,coil,and profiledstrip,Deformed steel,flat steel,mould,steel wire,have all specifications. With DuoNian production experience, strict control 1.2842, DIN 90MnCrV8, AISI O2 chemical composition and 1.2842, DIN 90MnCrV8, AISI O2 mechanical properties.From casting, forging, steel to hot and cold rolling process, heat treatment, etc, we have the control of professional engineers. We have advanced precision machining equipment, according to the requirements of users machining. in order to achieve the most satisfied with the user requirements.

Production specification

Round bar steel: 1mm to 3500mm
Square-shape steel: 1mm to 4000mm
Plate steel:0.1mm to 4000mm
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: φ6-1800mm, 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.
We serve you with our honesty, integrity, and professionality.

1.2842, DIN 90MnCrV8, AISI O2

Designation by Standards

Brand Name LH No. Mat. No. DIN EN AISI
MERILO 802 1.2842 90MnCrV8 90MnV8 O2

Chemical Composition (in weight %)

C Si Mn Cr Mo Ni V W Others
0.90 0.25 2.00 0.35 - - 0.13 - -

Description
Cold work steel/" target="_blank" class="keylink">tool steel with high dimensional stability at heat treatment. Very high resistance to cracking. High machinability, medium thoughness and resistance to wear. 

Applications
Measuring tools, machine knives for the wood, paper and metal industry, cold cutting shear blades, thread cutting tools. 

Physical properties (avarage values) at ambient temperature
Modulus of elasticity [103 x N/mm2]: 210 
Density [g/cm3]: 7.85
Thermal conductivity [W/m.K]: 30.0 
Electric resistivity [Ohm mm2/m]: 0.35
Specific heat capacity[J/g.K]: 0.46

Coefficient of Linear Thermal Expansion 10-6 oC-1

20-100oC 20-200oC 20-300oC 20-400oC 20-500oC 20-600oC 20-700oC
12.1 13.3 13.8 14.3 14.1 14.2 14.6

Continuous Cooling Transformation (CCT) Diagram

Time-Temperature Transformation (TTT) Diagram


Click the image to enlarge the diagram.

Soft Annealing
Heat to 690-720oC, cool slowly in furnace. This will produce a maximum Brinell hardness of 229.

Stress Relieving
Stress relieving to remove machining stresses should be carried out by heating to 650oC, holding for one hour at heat, followed by air cooling. This operation is performed to reduce distortion during heat treatment.

Hardening
Harden from a temperature of 790-820oC followed by oil or warm bath (180-220oC) quenching. Hardness after quenching is 63-65 HRC.

Tempering
Tempering temperature: See the data bellow.

Tempering Temperature (oC) vs. Hardness (HRC)

100oC 200oC 300oC 400oC 500oC 600oC
63 60 56 50 42 38

Tempering Diagram

Forging
Hot forming temperature: 1050-850oC. 

Machinability
No data.

Corrosion Resistance 
Corrosion resistance of this alloy is better than that of plain carbon steels. However it will rust unless given protective treatment.

Mechanical properties

1.2842, DIN 90MnCrV8, AISI O2 Mechanical properties,Our production completely according to the 1.2842, DIN 90MnCrV8, AISI O2 standards to meet the 1.2842, DIN 90MnCrV8, AISI O2 mechanical performance, can also according to the customer request, to meet the requirements of customers of 1.2842, DIN 90MnCrV8, AISI O2 mechanical properties.

Heat treatment

1.2842, DIN 90MnCrV8, AISI O2 Heat treatment,Our production completely according to the 1.2842, DIN 90MnCrV8, AISI O2 standards to meet the 1.2842, DIN 90MnCrV8, AISI O2 Heat treatment, can also according to the customer request, to meet the requirements of customers of 1.2842, DIN 90MnCrV8, AISI O2 Heat treatment.

Machining

1.2842, DIN 90MnCrV8, AISI O2 Machining,Our production completely according to the 1.2842, DIN 90MnCrV8, AISI O2 standards to meet the 1.2842, DIN 90MnCrV8, AISI O2 Machining, can also according to the customer request, to meet the requirements of customers of 1.2842, DIN 90MnCrV8, AISI O2 Machining.

Welding performance

1.2842, DIN 90MnCrV8, AISI O2 Welding performance,Our production completely according to the 1.2842, DIN 90MnCrV8, AISI O2 standards to meet the 1.2842, DIN 90MnCrV8, AISI O2 Welding performance, can also according to the customer request, to meet the requirements of customers of 1.2842, DIN 90MnCrV8, AISI O2 Welding performance.

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