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Oil Hardening Tool Steel Round Bar 20 - 1000mm Diameter AISI O2 / DIN EN 90MnCrV8 1.2842

China SHANGHAI UNITE STEEL certification
China SHANGHAI UNITE STEEL certification
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Oil Hardening Tool Steel Round Bar 20 - 1000mm Diameter AISI O2 / DIN EN 90MnCrV8 1.2842

Oil Hardening Tool Steel Round Bar 20 - 1000mm Diameter AISI O2 / DIN EN 90MnCrV8 1.2842
Oil Hardening Tool Steel Round Bar 20 - 1000mm Diameter AISI O2 / DIN EN 90MnCrV8 1.2842 Oil Hardening Tool Steel Round Bar 20 - 1000mm Diameter AISI O2 / DIN EN 90MnCrV8 1.2842

Large Image :  Oil Hardening Tool Steel Round Bar 20 - 1000mm Diameter AISI O2 / DIN EN 90MnCrV8 1.2842

Product Details:
Place of Origin: MAINLAND CHINA
Brand Name: UST
Certification: ISO 9001:2008
Model Number: ASTM O2
Payment & Shipping Terms:
Minimum Order Quantity: 3 Metric tons
Packaging Details: In standard export packing and seaworthy material with rectangular shape bundle, covered with tarpaulin, in ontainers or in bulk, or upon request
Delivery Time: 15-35 days
Payment Terms: L/C, T/T, D/A, D/P
Supply Ability: 1000 Metric Tons per Month
Detailed Product Description
Shape: Round Bar Techniques: Cold Drawn; Hot Rolled; Cold Rolled; Forged
Matrial: Tool Steel Grade: O2 / 1.2842
Diameter: 20-1000mm Length: Below 16 Meters
Surface: Black, Bright, Polished, Peeled, Or Upon Request Processing: Annealed Or Quenched And Tempered Provided
End: Beveled, Plain End As Required Quality Inspection: SGS, BV Etc.
High Light:

tool steel rod


tool steel round bar

AISI O2 / DIN EN 90MnCrV8 1.2842 Oil Hardening Tool Steel Bar / Rod




AISI O2 tool steel is an oil hardening tool steel which is supplied in the annealed condition and characterized by its characteristics of offering good durability. Tool steel O2 is with excellent wears resistance and its ability to hold a good cutting edge. 02 steel is good quality general purpose tool steel often used where the expense of a high carbon high chromium tool steel would not be justified.


AISI O2 steel has working hardness up to 63-65HRC. Steel O2 makes pretty decent performer for light/medium use knives at that hardness.






Steel O2 is used as tool steel for universal use, highly stressed plastic moulds, mould inserts for high hardness and abrasive stress, blanking and stamping tools for all types cutting sheet metals up to 6 mm thickness, cold forming dies, cutting and punching tools of all types, shear blades for paper, plastic and metalworking industries, reamers, thread chasers and cutting tools, pressure pads, guide pins, taps, measuring tools, precision calipers and plug gauges, woodworking tools, plastic and rubber compression moulds, deep drawing tools, clipping.


Steel Grade 1.2842 Application Tool steel, Mold Steel
Shape Round Bar Standard GB, ASTM, DIN,JIS
Dimension Φ20-1000 mm; length below 16m Surface Black, Bright, Polished, Peeled
Technique Cold drawn; Hot rolled; Forged Ultrasonic Test 100% UT Passed





  Diameter (mm)
Cold drawn 10-100
Peeled 30-160
Grinded 10-600
Turned 130-1600
Hot Rolled 20-280
Hot Forged 130-1000



-HOT rolled; Cold rolled; Forged; Cold Drawn

-Heat Treatment: Untreated, Annealing, N+T, Q+T

-Smelting: EAF+LF+VD (+ESR)

-Surface Finish: Black, Rough Machined, Peeled, Turned or as per given requirements

-UT 100% passed

-Cutting service provided

-Third Party inspection is acceptable (SGS, BV etc.)




O2 1.2842 B02 9Mn2V




C Si Mn P S Cr V












Properties Conditions
T (°C) Treatment
Density (×1000 kg/m3) 7.66 25
Poisson’s Ratio 0.27-0.30 25
Elastic Modulus (GPa) 190-210 25





Forging of AISI O2 Tool Steel

Heat O2 steel to 1000°C. Forge it within a range of 850-1050°C reheating if necessary. Cool slowly to avoid setting up stresses



AISI O2 Tool Steel Heat Treatment


  • Annealing : 680 – 720 °C
  • Hardness after annealing : Max. 220 HB
  • Stress relieving : Approx. 650 °C
  • Hot forming : 1050 – 850 °C
  • Hardening : 790 – 820 °C
  • Quenching media : Oil, Salt bath ( 220 – 250 °C ) up to 20 mm thickness
  • Hardness after quenching : 63 – 65 HRC
  • Hardness after tempering :
100℃ 200℃ 300℃ 400℃



Oil Hardening Tool Steel Round Bar 20 - 1000mm Diameter AISI O2 / DIN EN 90MnCrV8 1.2842 0


What we can offer?

-We offer a wide range of steel products in a wide variety of dimensions and executions, according to the common international specifications or customize.

-Machining and heat treatment are available.

-Also, we advise you in choosing the right materials.


Shape Available

  • Solid round bar
  • Flat bar
  • Square bar
  • Hexagon bar
  • Block
  • Plate
  • Sheet
  • Wire rod
  • Strip


Our Advantages

  • High mechanical property and quenching, enable the surface share equal hardness after deal with it
  • Good polishing and low roughness
  • Making the heat-treatment to harden condition before using it
  • Competitive price
  • Fast production lead-time
  • All the material are inspected with 3 times to meet the highly standards
  • Pure steel quality & stable quality to be guarantee



Oil Hardening Tool Steel Round Bar 20 - 1000mm Diameter AISI O2 / DIN EN 90MnCrV8 1.2842 1



Available Size:
-Round: Dia. 20-1000 mm
-Flat: T. 10-120 mm x W. 60-810 mm
-Block: T. 80-1200 mm x W. 100-1600 mm




1. Both T/T and L/C will be acceptable

2. Trade Terms: FOB, CIF, CFR

3. The delivery will be in 10-15 days if have stock; For customized items, the delivery will be negotiated by both parties

4. Shipping by sea freight from Shanghai Port (PRC) for Bulk orders, by airfreight or express for samples




Shanghai Unite Steel Trading Co., Ltd

We are committed to integrate engineering steel resources in china and serve the global engineering steel market. Our company has more than 15 years of experience in steel researching, production, managing and sales. And our team mostly are based on and worked in national famous steel enterprise.

In the aspect of resources and information, we have established cooperative and stronger relationship with nearly hundred enterprises, either state-owned or private owned in china.

What’s more, we have built long, deep and close business relationship with dozens of steel company, Sharing and holding equities with several steel enterprises. Because of the close cooperation with steel companies and our pioneering spirit, which can ensure us stay at the top competition, and ensure our customers get what they really want!




Q: Are you a manufacturer or merely a trader?
A: We are group of companies and owned manufacturer bases and trading company. We specialized in special steel which include alloy structural steel and carbon steel and stainless steel, etc. All material are with high quality and competitive price.

Q: How do you guarantee the quality of your product?
A: Firstly, we can provide the certificates from the third party, such as TUV, CE, if you need. Secondly, we have a complete set of inspection system and every process is checked by QC. Quality is the lifeline of enterprise survival.

Q: Delivery time?
A: We have ready stock for most of material grades in our warehouse. If the material doesn't have stock, the delivery lead time is about 5-30 days after receiving your prepayment or firm order.

Q: What is the payment term?
A: T/T or L/C.

Q: Can we visit your company and factory?
A: Yes, warmly welcome! We can book the hotel for you before you come to China and arrange our driver to our airport to pick you up when you come.



Contact Details

Contact Person: Neya

Tel: +8615261689453

Send your inquiry directly to us (0 / 3000)