AISI O1 / DIN EN 95MnWCr5 1.2510 Cold-Work Tool Steel Bar / Rod
INTRODUCTION
- AISI O1 tool steel has deep hardening properties with fine grain
structure with unusual toughness.
- AISI O1 tool steel offers good durability, gives excellent wear
resistance and holds a good cutting edge.
- AISI O1 cold work tool steels also has good response to heat
treatment with small dimensional changes.
We are a better choice of O1 oil tool steel materials supplier with
reliable quality and sales service. AISI Tool steel O1 is available
in standard de-carb free rounds, flats and squares, as well as the
largest size selection in O1 oil steel ground flat stock and drill
rod of all the tool steel grades, or as per customized
requirements.
APPLICATIONS
O1 steels are mainly used for short run tooling for cold forming
dies, blanking dies, and cutting tools operating at ambient
temperature.
Typical applications for O1 tool steel are blanking, forming, and
trim dies, gages, slitting cutters, punches, bolster dies,
knock-out pins, thread roll dies, bending dies, plastic mold dies,
shims, cams, machine ways, stamps, machine parts, jigs, cutter
templates, swaging dies, etc.
| Steel Grade | 1.2510 | 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 |
DELIVERY CONDITIONS
| Diameter (mm) |
| Cold drawn | 10-100 |
| Peeled | 30-160 |
| Grinded | 10-600 |
| Turned | 130-1600 |
| Hot Rolled | 20-280 |
| Hot Forged | 130-1000 |
- EAF+(ESR) or EAF+LF+VD+(ESR)
- 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.)
EQUIVALENT GRADES
| AISI/SAE | DIN | JIS | GB |
| O1 | 1.2510 | SKS3 | 9CrWMn |
CHEMICAL COMPOSITION (%)
| C | Si | Mn | P | S | Cr | V | W |
0.85 1.00 | 0.10 0.50 | 1.00 1.40 | ≤ 0.030 | ≤ 0.030 | 0.40 0.70 | ≤ 0.30 | 0.40 0.60 |
MECHANICAL PROPERTIES
| Properties | Metric | Imperial |
| Hardness, Brinell (soft annealed -delivery condition) | 190 | 190 |
| Hardness, Rockwell C (tempering temp 300-1200°F) | 34.0-64.0 | 34.0-64.0 |
| Elastic modulus (hardened to 62 HRC) | 193 GPa | 28000 ksi |
| Elastic modulus (@399°C/750°F, hardened to 62 HRC ) | 172 GPa | 25000 ksi |
| Elastic modulus (@191°C/375°F, hardened to 62 HRC) | 186 GPa | 27000 ksi |
| Compressive yield strength (0.2%, hardened to 50 HRC) | 1350 MPa | 196000 psi |
| Compressive yield strength (0.2%, hardened to 55 HRC) | 1800 MPa | 261000 psi |
| Compressive yield strength (0.2%, hardened to 60 HRC) | 2150 MPa | 312000 psi |
| Compressive yield strength (0.2%, hardened to 62 HRC) | 2200 MPa | 319000 psi |
PROCESSING
Forging of AISI O1 Tool Steel
Heating for forging of oil tool steel O1 must be done slowly and
uniformly. Forging of alloy O1 steels can be performed at
980-1000°C, and reheat as often as necessary. But not forge below
800°C. After forging AISI O1 tool steel, cool slowly in lime, mica,
dry ashes or furnace. ASTM O-1 tool steels should always be
annealed after forging.
AISI O1 Tool Steel Heat Treatment
Anneal
Annealing must be performed after hot working and before
re-hardening.
Heat at a rate not exceeding 222°C per hour to 802-816°C, and hold
at temperature for 1 hour per inch (25.4mm) of maximum thickness; 2
hours minimum. Then cool slowly with the furnace at a rate not
exceeding 28°C per hourto 538°C. Continue cooling to ambient
temperature in the furnace or in air. The resultant hardness should
be a maximum of 212 HBW.
Stress Relief of Unhardened Material
Heat slowly to 1250° F. Soak for two hours per inch of thickness at
heat. Slow cool (furnace cool if possible) to room temperature.
Hardening
- Preheat: Warm slightly before charging into the preheat furnace,
which should be operating at about 1100°-1200°F.
- Hardening: Heat to 1475 to 1500° F. Soak at heat for 30 minutes
per inch of thickness.
- Quench: Quench O1 steel in warm oil and allow to cool in the oil
until a temperature of 125°-150°F has been reached, or to where the
part can be held in the bare hand, and temper immediately.
- Temper: Normally oil hardening steels need to be single tempered
only. However, double tempering may sometimes be preferred. Soak at
heat for 2 hours per inch of thickness for each temper. Air cool to
room temperature between tempers. The normal tempering range for
this grade is 300 to 450° F.
Stress Relief Temper
A stress relief temper for hardened material is strongly
recommended after significant grinding, or welding, or EDM. Select
a temperature that is 25 or 50° F lower than the last tempering
temperature used.
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
OUR MAIN PRODUCTS ARE LISTED AS BELOW
Notes:
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
PAYMENT AND SHIPPING
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
COMPANY INFORMATION
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!
FAQ
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.
