1.2312 Steel Round Bar Sheet Plate Material
1.2312 steel material is a great plastic mold steel in the industry. 1.2312 (40CrMnMoS8-6) belongs to the stand of alloy tool steel of DIN. And many people also call it as 2312 steel. It’s polishing property and machinability are good. And the hardness of everywhere is average with high wear resistance. DIN 1.2312 steel material usually be used in the blowing mould, structural parts, forming tools, injection mold due to the good hardness, high-temperature strength and mechanical property.
| 1.2312 Steel Round Bar Sheet Plate Supply | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Type | Specification | Surface | |||||||||||||||||
| Round Bar | Dia 6-1000mm; Length: Can be customized | Black Surface/Bright Surface /Grinded/Peeled/Turned | |||||||||||||||||
| Sheet/Plate/Slab | Thickness: 120-800mm; width: Can be customized;
Length: Can be customized | Black Surface/Bright Surface /Grinded/Peeled/Turned | |||||||||||||||||
P20+S Steel Grade Equivalent Chart
| Country | USA | Germany/UK/France |
|---|---|---|
| Standard | ASTM/AISI | EN ISO 4957 |
| Grades | P20+S | 1.2312 |
1.2312 Steel Chemical Composition
| Grade | C (%) | Mn (%) | S (%) | P (%) | Cr (%) | Mo (%) | Si (%) |
|---|---|---|---|---|---|---|---|
| 1.2312 | 0.35-0.45 | 1.40-1.60 | 0.05-0.10 | ≤0.03 | 1.80-2.00 | 0.15-0.25 | 0.30-0.50 |
1.2312 Steel Physical Properties
| Density | Linear Expansion Coefficient | Thermal Conductivity |
|---|---|---|
| 7.84 g/cm3 | 12.4 *10-6m/(m*K) | 34 W/(m*K) |
P20+S Steel Mechanical Properties
| Mechanical properties | Metric | Imperial |
|---|---|---|
| Hardness, Brinell | 300 | 33 |
| Hardness, Rockwell C (typical) | 30 | 30 |
| Tensile strength, ultimate | 965-1030 MPa | 140000-150000 psi |
| Tensile strength, yield | 827-862 MPa | 120000-125000 psi |
| Elongation at break(in 50 mm (2″)) | 20.0% | 20.0% |
| Compressive strength | 862 MPa | 125000 psi |
| Charpy impact (V-Notch) | 27.1-33.9 J | 20.0-25.0 ft-lb |
| Poisson's ratio | 0.27-0.30 | 0.27-0.30 |
| Elastic modulus | 190-210 GPa | 27557-30457 ksi |
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DIN 1.2312 Steel Application
DIN 1.2312 steel is a general-purpose low-alloy tool steel, mainly used for large plastic molds and mold bases, such as car bumpers, TV housing mold shells, etc., and also used for tool holders, die-casting low-point metal mold materials, assembly parts , forming frames, fixtures, base plates, hydroforming tools, and more.
1.2312 Steel Characteristics
- It is easy to get the homogeneous hardness throughout the section for big dimension blocks.
- Good polishability, good toughness on the surface.
- Delivered in Pre-hardening condition, used directly for making molds, that can guarantee good usability and avoid the deformation in heat treatment.
1.2312 Round Bar Sheet Plate Heat Treatment
- Hardening: 830 ℃- 870℃
- Forging: 1100℃ – 850℃
- Rolling: 1100℃ – 850℃
- Quenching: 840℃ – 870℃
- Soft Annealing: 710℃ – 740℃
- Annealing for Stress Relief: 500℃ – 550℃
Our Advantage
Manufacturing
With 7000 tons of hydraulic forging press, electric slag furnace and other high-end production equipment, we produce a great variety of steels with the best quality in China.
Testing
In order to control the quality, we have complete testing methods to make sure satisfy the customer needs, including Chemical Analysis, Ultrasonic Test and so on.
Massive Stock
We keep a mass stock are over 20000 tons for various steel type, including steel round bar, steel sheet, alloy steel, carbon steel, stainless steel, mold steel, steel coil and etc.
Customized Service
With a professional steel engineers team, we provide customized service according to your project drawing, also provide professional project experience for your special project, such as materials, processing conditions and etc.
World Wide Delivery
For container shipment, standard packing and bundle round bar and flat bar would be applied. It is necessary to fasten & reinforcement would be done to ensure the safety and better unloading at the destination port.
For less than container shipment, wooden box package would be applied for different size materials. For milled or grounded materials, the anti-rust oil would be needed to ensure the surface condition, within the wooden box.
