AISI O1/DIN 1.2510/JIS SKS3 Tool Steel Round Bar

 Introduction:
Cold-work tool steels are high carbon steels that are further classified into three subgroups such as oil-hardening steels, high-carbon, high-chromium steels, and air-hardening steels. Oil-hardening cold-work steels are also known as group O steels consisting of O1, O2, O6, and O7 types.

Type O1 oil-hardening cold-work steel consists of chromium, manganese, and tungsten and is relatively inexpensive.

Fabrication and Heat Treatment:
Machinability:
The machinability of O1 steels is very good with a rating of 90% that of water hardening low alloy steels.

Forming:
O1 steels can be easily formed in the annealed condition using conventional methods.

Hardening:
O1 steels should be heated uniformly to 780-820°C (1436-1508°F) until completely heated through. If needed, the steels can be preheated at 300-500°C (572-932°F). About 30 min/per 25 mm of ruling section is to be provided and then the steels should be immediately quenched in oil.

Welding:
O1 steels are weldable but run the risk of crack formation but this can be avoided with certain specifications.

1. During welding of soft annealed O1 tool steel, the steel should be preheated to 300 - 500°C (572-932°F), welded at same temperature and finally the stress should be relieved immediately. The Cr-Mo alloy electrode is preferable for welding structural steel.
2. While welding in order to harden soft annealed O1 tool steel, the steel should be heated to hardening temperature, cooled to 500°C (932°F) and welded at same temperature. Finally quenching is performed. The hard-facing electrode is the preferable choice of electrode.
3. When repair welding of the O1 tool steel in hardened and tempered condition, the steel should be preheated to a minimum tempering temperature of 200°C (93°F) and welded at the same tempering temperature. Finally, it should be heated immediately to a maximum tempering temperature of 300°C (572°F) and soaked for 2 hours. The hard-facing electrode is the preferable choice of electrode.
Heat Treatment:
The heat treatment requires O1 steels to be slowly preheated to 649°C (1200°F) and then heated at 788-816°C (1450-1500°F). Then these steels should be held at the same temperature for 10 to 30 minutes and finally oil quenched.

Forging:
Forging of O1 steels can be performed at 1038°C (1900°F) down to 857°C (1575°F) but not below 816°C (1550°F).

Cold Work:
O1 steels can be easily cold-worked in the annealed condition using conventional methods.

Annealing:
Annealing should be performed at 788°C (1450°F) followed by slow furnace cool at a temperature less than 4°C (40°F) per hour.

Tempering:
Tempering of O1 steels is performed at 177-260°C (350-500°F) to realize Rockwell C hardness of 62 to 57.

Martempering:
Martempering is a substitute hardening procedure which can be used along with suitable salt bath equipment.

Surface Treatment:

Plate: Origin Black, Orign cold rolled bright, Machined, Grinded

Round Bar: Origin Black, Orign cold rolled(drawn) bright, Turned, Peeled, Grinded

Size:

Round bar: Diameter(mm) Max 600mm; Length(mm) Max 12000mm.

Plate: Thickness(mm) Max 800mm; Width(mm) Max 2300mm; Length(mm) Max 12000mm.

Condition: Cold rolled(drawn)≤50mm, Hot rolled≤12-250mm, Hot forged≥50mm.(Thickness/Diameter)

Applications:
O1 steels are mainly used for short run tooling for cold forming dies, blanking dies, and cutting tools operating at ambient temperature.

 


 
About us :
HK JIMI STEEL  Was established in 2012, located in the Shunde District of Guangdong Province, It is an import and export trading company mainly engaged in advanced special steel, die steel, alloy steel, and steel processing general machinery and equipment. The company adheres to the concept of "high quality, high requirements and good faith", 

Cooperating with more than 20 famous steel mills in China, rich in spot stock of products. 

Our company has a variety of processing equipment and all kinds of inspection and testing equipment, such as horizontal sawing machine, vertical sawing machine, milling machine, bilateral milling machine, precision milling machine, plane grinder and so on. The products with short producing time, excellent quality and high precision can provide a high-quality product choice for the vast number of customers at home and abroad. 

Our customer group spread all over the domestic provinces and cities, abroad including Europe, the United States, Australia, the Middle East, Southeast Asia and other more than 20 countries and regions, along with over 100 long-term stable cooperation customers...Choosing Xingxiong will bring you a better experience. 

PLASTIC MOULD STEEL: 1.2311, 1.2312, 1.2738, P20, 1.2083, 1.2316, NAK80, P40, 1.2738HH

HOT WORK MOULD STEEL: 1.2344, SKD61, H13, H11, FDAC, 8407

COLD WORL MOULD STEEL: SKD11, D3, SKS3, 1.2080, 1.2379, CR12MOV, O1, D2

STRUCTURAL ALLOY STEEL: 4140, 20CR, 40Cr, 35CrMo, 42CrMo, 38CrmoAi, SCM440, SCM420, 1.7225

CARBON STEEL &: Q235, Gcr15, S45C, S50C, S55C

CNC surface grinding machine, CNC side boring machine, Band saw, CNC double head machine, Vertical Band saw, CNC milling machine, Double alloy saw blade, wireless remote control crane, Magnetic chuck.
 

 
 
Our Service:
A. Steel plates: Cutting by bandsaw machine, milling, heat treatment, etc
B. Round bars: Cutting by bandsaw machine, peeling, grinding and turned, heat treatment, etc


 
Application:
Widely used in die casting mold, hot extruding die, brass casting die, high strength plastic die etc.


 
Stock:

High-quality stock for various steel flat bar and round bar.
Alloy steel / Cold work steel / Hot work steel / Plactic mold steel and Stainless 
Hot sales grade : DC53/ H13 / P20 / SCM440 / Q235,etc.

For more tool and die steel please check the list:

 
Delivery Time

1) For abundant stock, 7-15 days.
2) For customized products, 15-30 days.

Loading Details:

 
FAQ:

Q1: What do you do for the control of the quality?

A1:  Before loading into the container, our products will all be inspected by ultrasonic inspection. Quality Grade conforms to SEP 1921-84 E/e, D/d, C/c as per customer's request.
 

Q2:: What are your hot-selling products?

A2: D2/1.2379, H13/1.2344, CR12MOV, DC53, CR8, abundant stock for both plates and rounds. Competitive prices and short lead-time.


Q3: Can we visit your company and factory? 
A3: 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. 


Q4: Are you a manufacturer or merely a trader? 
A4: We are a group of companies and owned manufacturer bases and trading companies. We specialized in plastic mold steel, hot work mold steel, cold work mold steel, alloy steel for mechanical, high-speed steel, etc. All materials are of high quality and competitive prices. 
 

Hot sales Product:

1.2344                               SKD11                                       D3                                   DC50