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 - 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.
Steel mould and Steel mould suppliers, global delivery, stock supply Steel mould steels.
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.
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.
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.
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 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.
440C Stainless Steel
440C is a high carbon chromium stainless steel providing stainless steel properties with optimum hardness after heat treatment. 440C can achieve a hardness of up to 60 Rockwell HRc. 440C stainless resists corrosion in normal domestic environments and very mild industrial enviroments, with optimum cossision resistance of 440C achieved with a temper below about 400°C. For 440C to achieve best cossosion resistance, surfaces must be free of scale, lubricants, foreign particles, and coatings applied for drawing and heading. With its high carbon content 440C annealed stainless machines similar to a high speed steel annealed grade.
Typical Analysis |
|
|
|
|
|
|
C. |
Mn. |
P. |
S. |
Si. |
Cr. |
Mo. |
0.95- |
1.00% |
0.04% |
0.03% |
1.00% |
16.00- |
0.75% |
1.20% |
max. |
max. |
min. |
max. |
18.00% |
max. |
Annealing
To achieve full anealing of 440B heat uniformly to 840 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 440C or full hardness will not be obtained.
Tempering
When tempering 440C a Rockwell hardness of 60HRc can be obtained. Temper for at least one hour.
Tempering °C |
300 |
400 |
500 |
600 |
700 |
HRc |
60 |
59 |
57 |
56 |
56 |
Mechanical Properties at Room Temperature
(440C hardened at 1040°C, oil quenched and tempered at 300°C)
Tensile (UTS) |
|
1965 N/mm² |
0.2% Yield Strength |
|
1896 N/mm² |
Elongation (50.8mm) |
|
2% min |
Hardness |
|
59HRc |
Reduction of Area |
|
10 |
Stainless Steel Suppliers | Hi-Steel HSLA-80 | Steel mould | Heat resistant steel | Tool Steel | Ball bearing steel | Spring steel | Alloy
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TEL:+86-15328239557 | FAX:+86-816-3639422 | E-mail:sales@specialsteel-jy.com | Add:119#,Jiangdong road, Sanhe Town,Jiangyou City, Sichuan Province, China | Zip:621701