AISI O2 Cold Worked Tool Steel
AISI O2 is a versatile tool steel grade that is widely used in the manufacturing industry for a variety of applications that require high hardness, wear resistance, and toughness. . Cutting tools, Punches and dies, Cold work tooling, Woodworking tools, Machine components are all should be used this material.
- HONGXING
- DAYE
- 30 DAYS
- 8000 TON/MONTH
- Information
GB/T 9Mn2V Cold Worked Tool Steel
1: AISI O2 steel introduction
AISI O2 tool steel is an oil hardening tool steel which is supplied in the annealed condition and characterised by its characteristics of offering good durability. Tool steel AISI O2 is with excellent wear resistance and its ability to hold a good cutting edge. AISI O2 steel is a good quality general purpose tool steel often used where the expense of a high carbon high chromium tool steel would not be justified.
2: AISI O2 Steel equivalent
| Country | China | Japan | Germany | USA | UK |
| Standard | GB/T 1299 | JIS G4404 | DIN EN ISO4957 | ASTM A681 | BS 4659 |
| Grade | 9Mn2V | 1.2842 / 90MnCrV8 | O2 | B02 |
3: AISI O2 steel chemical composition
| Grade | C | Mn | P | S | Si | Cr | V | Mo | |||||
| O2 / T31502 | 0.85 | 0.95 | 1.40 | 1.80 | 0.03 | 0.03 | . . . | 0.50 | . . . | 0.50 | . . . | 0.30 | 0.30 |
| 1.2842 / 90MnCrV8 | 0.85 | 0.95 | 1.80 | 2.20 | 0.03 | 0.03 | 0.10 | 0.40 | 0.20 | 0.50 | 0.05 | 0.20 | . . . |
| B02 | 0.85 | 0.95 | 1.50 | 1.80 | 0.035 | 0.035 | . . . | 0.40 | . . . | . . . | . . . | 0.25 | . . . |
| 9Mn2V | 0.85 | 0.95 | 1.70 | 2.00 | 0.03 | 0.03 | . . . | 0.40 | . . . | . . . | 0.10 | 0.25 | . . . |
4: AISI O2 steel mechanical properties
The mechanical properties mainly include tensile strength, yield strength, elongation, area or reduction, hardness, impact value, non-metalic inclusion etc. Different heat treatment, the mechanical properties will be different, such as normalized, tempered, QT. If you want to know the properties, kindly contact the salesman.
5: AISI O2 steel overviews
| Size | Round | Dia 6-500mm | |
| Plate/Flat/Block | Thickness 8mm-80mm | ||
| Width 210mm-710mm | |||
| Process | EAF+LF+VD+Forged+Heat treatment(optional) | ||
| Heat treatment | Normalized ; Annealed ; Quenched ; Tempered | ||
| Surface condition | Black; Peeled; Polished; Machined; Grinded; Turned; Milled | ||
| Delivery condition | Forged; Hot rolled; Cold drawn | ||
| Test | Tensile strength, Yield strength, elongation, area of reduction, impact value, hardness, grain size, ultrasonic test, US inspection, magnetic particle testing, etc. | ||
| Payment terms | T/T;L/C;/Money gram/ Paypal | ||
| Trade terms | FOB; CIF; C&F; etc.. | ||
| Packing | Standard Packages, or as Customers Request | ||
| Delivery time | 30-45 days | ||
6. 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 HRCHardness after tempering :
| 100℃ | 200℃ | 300℃ | 400℃ |
| 64HRC | 62HRC | 57HRC | 50HRC |
7: Delivery condition
For hot forged or hot rolled bar, usually the delivery condition is hot forged or rolled, annealed, rough turned.
For hot forged plate, usually the delivery condition is hot forged, annealed, milled surface.
For hot rolled plate, usually the delivery condition is hot rolled, annealed, black surface.
Hongxin Mold Tech Co.,Ltd. owns 1 set of Hot Rolling Production Line at size range flats 8-80*210-710mm, rounds 16-50mm Dia.
12 sets of Hydraulic Forging Hammers from Power 560kgs to 6000kgs which could cover flats 40-300*210-710mm.
8 sets of EF+LF+VD
5 sets of ESR
9 sets of Milling Machines
10 sets of Turning Lathes
6 sets of Precision Milling Machines.
CERTIFICATION: GB/T19001-2016/ISO9001:2015
Products' List
Q1:Are you trading company or manufacturer ?
We are the largest tool steel manufacturer in Daye & Huangshi. We can provide a wide range of steel products.
Q2:What is alloy steel round bar export packing?
Usually bundling for large diameter,small diameter bars in bulk or as customer's demand.
Q3.What is your MOQ?
We accept small order,if it is stock,any quantities can be accepted.
Q4.What is your lead time?
Depends actual order,around 20-35 days,or negotiation.
Q5.Can you supply sample?
Yes,we can.Sample fee according to your size.
Q6:What certificates do you have?
ISO, ABS, BV, CCS, Dnv, Lr, Gl, Mill Certificate
Q7: How can I get your quotation as soon as possible?
The email and fax will be checked within 24 hours,meanwhile,the Skype,Wechat and WhatsApp will be online in 24 hours.Please send us your requirement,we will work out a best price soon.
