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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.
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Home » Stainless Steel » Product introduction
440B 1.4112 Stainless Steel
- Numbers: 2010121902
- Model: 1.4112
- Producers: Longhai
- Update time: 2010.12.20
- Browse:
Product Description:
|
Typical Analysis |
|
|
|
|
|
|
|
C. |
Mn. |
P. |
S. |
Si. |
Cr. |
Mo. |
|
0.75- |
1.00% |
0.04% |
0.03% |
1.00% |
16.00- |
0.75% |
|
0.95% |
max. |
max. |
min. |
max. |
18.00% |
max. |
Annealing
To achieve full anealing of 440B heat uniformly to 850 to 875°C. Soak and cool very slowly in the furnace.
Hardening
To heat treat 440B heat to 1010 to 1070°C, fully soak and quench in warm oil or cool in air. Be carefull not to overheat 440B or full hardness will not be obtained.
Tempering
When tempering 440B a Rockwell hardness of 58/59HRc can be obtained. Temper for at least one hour.
| Tempering °C |
300 |
400 |
500 |
600 |
700 |
| HRc |
58/59 |
58/57 |
53/54 |
53 |
54 |
Mechanical Properties at Room Temperature
(440B hardened at 1040°C, oil quenched and tempered at 300°C)
|
Tensile (UTS) |
|
1930 N/mm² |
|
0.2% Yield Strength |
|
1860 N/mm² Min |
|
Elongation (50.8mm) |
|
3% min |
|
Hardness |
|
54HRc |
|
Reduction of Area |
|
15 |
Product description:
Step Shaft 440B 1.4112 Tube 440B 1.4112 Pie-shaped 440B 1.4112 Ring 440B 1.4112 Module Large valves of the main 440B 1.4112 Other Profiled forgings 440B 1.4112
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, High-speed steel, angles, channels, H steel, I-beams, welded pipes, seamless tubes,
Standard:
Our products meet Chinese GB, Japanese JIS, US ASTM, UK BS, EU DIN standards and so on.
Our advantages:
Our advantages such as advanced management and operation concepts, suitable work facilities, highly qualified talents and a number of trade partners who have long-term and close cooperation with us have ensured us to provide global customers with competitive high-quality commodities and excellent services, quickly, accurately, conveniently and completely.
Products Introduction:
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.
