Product categories
More »
Stainless Steel
Stainless Steel specifications held in the austenitic, martensitic and precipitation hardening varieties. Stocks are held in British Standard and International standards. Below is listed our most commonly supplied grades; please contact our sales office. Also stock is 301 stainless spring temper rolled strip.
Hi-Steel HSLA-80
Hi - Speed, high Speed Steel Tool Steel (made) : highly processed into the Tool Steel, carbon content high, while containing cr quantity is low (about 4%), reason burnish of Steel surface gloss darker, after heat can reach by HRc62 high hardness, resistance to rust performance not on a roll.
Mould Steel
Steel mould and Steel mould suppliers, global delivery, stock supply Steel mould steels.
Heat Resistant Steel
Heat resistant steel. AS Orlov Izobret. Mashinostr. 3, 48-49, 7/2000. The purpose of this work was to increase plasticity of heat resistant steel after aging at the 500-1300 deg C temperature and to improve its operational reliability.
Tool Steel
Comprehensive stocks held of tool steel, including hot work, cold work and plastic mould tool steel specifications. Below we detail our most common grades. Other British Standard and international special steels and tool steels are also available, please contact our sales office.
Ball Bearing Steel
Supplies Ball bearing steel of all types, along with carbon steel and specialty balls, to OEM's around the world. Also offers platinum balls, brass balls, gold, titanium, aluminum, carbon and plastic balls.
Spring Steel
Carbon spring steel is held in a wide range of sizes. Detailed below are our most common specifications. Carbon steel strip and spring steel sheet is available most commonly in the hardened and tempered condition, though certain sizes are available in the annealed condition. Round and flat bar is stocked in the as rolled condition. Most spring steel specifications are held to British Standard steel specifications including BS1449 & BS970.
Alloy and Carbon Steel
Alloy steel is steel alloyed with a variety of elements in total amounts of between 1.0% and 50% by weight to improve its mechanical properties. Alloy steels are broken down into two groups: low alloy steels and high alloy steels. The difference between the two is somewhat arbitrary: Smith and Hashemi define the difference at 4.0%, while Degarmo, et al., define it at 8.0 %.[1][2] Most commonly, the phrase "alloy steel" refers to "low alloy" steels.
News
More »
Enterprise email
Home » Tool Steel » Product introduction
1.2344 Steel
- Numbers: 2011030901
- Model: 1.2344
- Producers: China
- Update time: 2011.03.09
- Browse:
Product Description:
| 1.2344 X40CrMoV5-1 is an air hardening hot work Tool Steel which combines a
|
|
TYPICAL ANALYSIS |
|
|
|||
|
C.
|
Si.
|
Mn.
|
Cr.
|
Mo.
|
V.
|
|
0.38%
|
1.00%
|
0.40
|
5.00%
|
1.30%
|
1.00%
|
Heat slowly and uniformly to 700°C. Forge 1.2344 within a range of 1050/1150°C reheating if necessary, since forging must not be carried out below 850°C. Cool slowly, preferably in a furnace since this is an air hardening steel.
Heat uniformly to 750/800°C, soak thoroughly and furnace cool.
After rough machining the 1.2344 components must be stress relieved, heat to 650/700°C and hold for 2 hours then furnace cool.
Pre heat the 1.2344 to 750/850°C and soak thoroughly, then increase rapidly to the hardening temperature of 1000/1030°C in a controlled atmosphere or neutral salt bath. Cool in air.
Heat uniformly and thoroughly at the selected tempering temperature, depending on the hardness requirement. Hold for at least two hours per inch of total thickness and cool in air. Double tempering of 1.2344 is strongly recommended.
|
Tempering °C |
400
|
500
|
550
|
600
|
650
|
|
HRc
|
54
|
56
|
54
|
49
|
47
|
Tufftriding 1.2344 hot work Tool Steel is done in a special salt bath at 570°C. Holding time 2 hours. It gives a surface hardness of approximately 950-1000HV.
Nitriding 1.2344 hot work Tool Steel gives a hard surface case which is very resistant to wear and erosion and also increases the corrosion resistance. Nitriding in ammoniac gas at 525°C gives a surface hardness of approximately 1000HV 1250HV. Before nitriding, the tool should be hardened and tempered at approximately 50°C above nitriding temperature.
|
Temperature |
Time
|
Approximate Depth of Case
|
|
525°C
|
10 hours
|
0.125mm
|
|
525°C
|
20 hours
|
0.180mm
|
|
525°C
|
40 hours
|
0.250mm
|
|
525°C
|
60 hours
|
0.300mm
|
Due to the high risk of crack formation welding of 1.2344 Tool Steel should be avoided, if possible. When, howe ver welding is essential, the following serves as a guide:
· Preheat to 300 - 500°C
· Weld at 300-500°C
· Immediately stress relieve at 675-750°C. Soaking time at temperature, 3 hours.
Electrode: Cr-Mo alloy electrode for welding low alloyed steel.
· Heat to austenitizing temperature.
· Cool to approx. 500°C
· Weld at approx. 500°C
· Cool to approx. 100°C in the same way as at normal hardening, then temper to desired hardness.
Electrode: Hard facing electrode.
· Preheat to the tempering temperature (min. 300°C) previously used.
· Weld at tempering temperature. Do not weld below 150°C.
· Reheat immediately to 300°C. Soaking time 3 hours.
· Cool in air to approx. 80°C.
· Reheat immediately to 300°C. Soaking time 3 hours.
Electrode: Hard facing electrode.
| Physical Properties: 1.2344 X40CrMoV5 | Temperature: | ||
| 200°C | 400°C | 600°C | |
| Density (Kg/dm³) | 7.75 | 7.70 | 7.65 |
| Coefficient of thermal expansion (per °C from 0°C) | 11.9 x 10-6 | 12.4 x 10-6 | 12.8 x 10-6 |
| Thermal conductivity (cal/cm.s °C) | 60.0 x 10-3 | 62.4 x 10-3 | 63.6 x 10-3 |
| Modulus of elasticity: | |||
| N/mm² | 184 000 | 175 000 | 154 000 |
Special Steel classification：
Stainless steel， Hi-Steel HSLA-80，Mould steel, Heat resistant steel, Tool Steel,Ball bearing steel, Spring steel, Alloy steel, Construction steel，Die steel/
Product description：
Step Shaft 1.2344 Tube 1.2344 Pie-shaped 1.2344 Ring 1.2344 Module 1.2344 Large valves of the main 1.2344 Other Profiled forgings FV520B
Products Introduction :
Specialized and high quality steel.
We have the advantages of equipment, technologies and price.
Specifications
Round bar ：
Diameter : 1mm-2000mm
Square bar:
Size： 50mm * 50mm-600mm *600mm
Plate steel/flat bar:
Size：Thickness:0.1mm-800mm Width:10mm to 1500mm
Tube/pipe:
Size：OD:6-219mm WT：1-35 mm.
Cold-rolled sheet:Thickness:2-5mm Width:1000mm Length:2000mm
Hot-rolled sheet:Thickness:6-80mm Width:210-610mm
Length: We can supply any length based on the customer's requirement.
Forging/hot rolling/ extrusion of steel.
Forging: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes
Finished goods condition: hot forging/hot rolling + annealing/normalizing + tempering/quenching + tempering/any conditions based on the customer's requirement
Surface conditions: scaled (hot working finish)/ground/rough machining/fine machining/based on the customer's requirement
Furnaces for metallurgical processing: electrode arc + LF/VD/VOD/ESR/Vacuum consumable electrode.
Ultrasonic inspection: 100% ultrasonic inspection for any inperfections or based on the customer's requirement
Excellent service for all kinds of industries,with advantages of technologies, equipment and price.
We serve you with our honesty, integrity, and professionality.
