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Help CenterCold Drawn Alloy Steel Round Bar 4140 Hot Oil Treatment Tools
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Alloy steel round bar 4140 structural steel
We welcome export enquiries for high speed steel. Contact our sales office and consult our shipping policy for further details.
| Typical Analysis |
|
| Form of Supply | West Yorkshire Steel are stockholders and suppliers of round bar. Diameters can be sawn to your required lengths as one offs or multiple cut pieces. Ground steel bar can be supplied, M35 high speed steel precision ground bar to tight tolerances. |
| Diameter |
| Applications | Used in conditions where the demand for hot hardness is important. It is also a good quality wear resistant grade for cold work applications. Commonly used for cutting tools including broaches, milling cutters, reamers, end mills and saw blades. |
| Forging | Pre heat the M35 high speed steel slowly and uniformly to 450-500°C and equalise. Then increase more quickly to the forging temperature of 950-1100°C and equalise prior to forging. Do not allow the forging temperature to drop below 950°C, if this occurs re heating will be necessary. Always cool the steel very slowly after forging. |
| Annealing | M35 is supplied in the annealed and machineable condition. Re annealing will only be necessary if the steel has been hot worked, forged, or hardened by the toolmaker. Heat the M35 high speed steel to 850°C at a rate of no more than 220°C per hour. Always hold at temperature for one hour per 25mm of thickness (with two hours being minimum). Furnace cool slowly. The M35 annealed hardness achieved should be 260 Brinell or lower. |
| Stress Relieving | If tools produced from M35 high speed steel are heavily machined or ground it is recommended to stress relieve after machining and prior to hardening to minimise the possibility of distortion. To stress relieve heat the component to 600-700°C and soak well (approx 2 hours) Cool slowly in the furnace. The tools can be finish machined before heat treatment. |
| Hardening | For best results harden in a vacuum or controlled furnace, or in a properly rectified salt bath. Pre heat thoroughly in two steps to 450-500°C, then to 820-870°C, transfer to the high temperature salt bath or furnace. The exact hardening temperature to use for M35 will depend on the type of work being treated, but in general components should be hardened from the range of 1050-1250°C. |
| Tempering |
M35 high speed steel components can be tempered between 510-620°C. Triple tempering is recommended with a minimum of two hours at temperature per cycle. The component should be cooled in still air to room temperature between tempering treatments.
|
| Heat Treatment | Heat treatment temperatures, including rate of heating, cooling and soaking times will vary due to factors such as the shape and size of each M35 steel component. Other considerations during the heat treatment process include the type of furnace, quenching medium and work piece transfer facilities. Please consult your heat treatment provider for full guidance on heat treatment of high speed steels. |
| Final Grinding | Select the correct grade of wheel in consultation with the grinding wheel manufacturer. Ensure the grinding wheel is in good condition by means of a suitable dressing tool. Wet grinding is a preferable option using a copious supply of coolant. If dry grinding is resorted to then use a very soft wheel. |
| Quality Assured Supply |
M35 high speed steel is supplied in accordance with our ISO 9001 : 2008 registration. |
4140 steel product details
The details of our Steel
1. Produce Standard: as the GB, AISI, ASTM, SAE, EN, BS, DIN, JIS Industry Standard
2. Produce processes: Smelt Iron -EAF smelt Billet - ESR smelt Billet -Hot rolled or forged get the steel round bar and plate
3. Heat treatment:
Normalized / Annealed / Quenched+Tempered
4. Quality assurance:
All order we can received Third party inspection, You can let SGS, BV,.. and others test company test and inspect our products before Goods shipping.
Steel producting process
Our supplier Product Certifications
Shipping
1.Payment: T/T, L/C, Western Union, MoneyGram,PayPal; 30% deposits; 70% balance before delivery.
2.MOQ: 1pcs
3.Warranty : 3 years
4.Package Informations: 1) EXPORT, In 20 feet (GW 25 ton) or 40 feet Container (GW 25 ton)
2)as customer's requirement
Packaging & Shipping, Trade Terms
Why Choose us?
7*24 online EMAIL service!
1.We are Alibaba Assessed 3 years Gold Supplier.
2.We Have the factory and special trade team,best production capability ,best quality control, Best Service .
3.Inspected by the Inspection Institution of BV, SGS.
4.100% QC inspection Before Shippment.
5.Welcome third party company Inspection,competitve price.
Basic Information About Dongguan Yaoteng Trade Company:
- Main Product: mould steel,aviation steel,steel weapons steel,tool steel,auotomotive steel
- Main Markets: Africa,South Asia,Southeast Asia,Eastern Asia,Eastern Europe.
- Year Established:2007
- Location:Guangdong China(mainland)
- Number of Employees:51-100 people
- Commitment to Our Customers:We pledge to keep abreast of all deve lopments in our field and to give our customers the ultimate in
- maintenance steels.The quality of every grade of steel we furnish will in all cases be uniform without exception,as our steel is made using
- the highest quality control in the steel industry.We use ISO standards to ensure an excellent, consistent result. As a result, our steel
- is more durable which provides a long lasting product passing the cost savings on to our customers. Our sales team services several
- states across the continental United States with shipping available in both the U.S. and Canada
Our Cooperation sullplier and steel factory :
- Chinese government Holdings company Military enterprises Military enterprises :
BAOSTEEL, ANSTEEL, DONGBEI SPECIAL STEEL, XIANG STEEL. FuSHUN SPECIAL STEEL, AND SO ON.
They have high quality!
- Private enterprise
TIANGONG STEEL, ASSAB, and so on,
They are the High power factory, High energy efficienty.
The Specifications of our Steel
|
Model
|
Diameter (mm) |
Thickness (mm) |
Width (mm) |
Length (mm) |
Annealling Hardness (HB) |
Q+T hardness (HRC) |
Surface Treatment |
|
Hot rolled round bar
|
5~300 | / | / | 3000~5800 | <=255 | 28~34 |
Black Oxidation layer or Bright
|
|
Forged round bar
|
200~1700 | / | / | 1000~4000 | <=255 | 28~34 | |
|
Hot rolled steel plate
|
/ | 1~250 | 610~3000 | 3000~12000 | <=255 | 28~34 | |
|
Forged steel plate
|
/ | 200~810 | 210~1250 | 2000~5000 | <=255 | 28~34 | |
The specification can be customised | |||||||
Product series
| Hot work tool steel | AISI H10, H10A, H11, H12, H13, H21, L6, etc. |
| DIN 1.2343, 1.2344, 1.2365, 1.2367, 1.2581, 1.2714, 1.2885, etc. | |
| JIS SKD5, SKD6, SKD61, SKT4, etc. | |
| Cold work tool steel | AISI D2,D3,D5,D6,D8,A2,O2,O1 etc. |
| DIN 1.2601,1.2379,1.2080,1.2363,1.2842,1.2419,1.2510,1.2550,1.2767 etc. | |
| JIS SKD1,SKD11, SKS3 etc. | |
| Alloy structural steel | AISI 4140,4340,5140,4130 etc. |
| DIN 1.7225,1.6511,1.7035,1.7220 | |
| JIS SCM440 | |
| Plastic mould steel | AISI P20, P20+Ni, 420 etc. |
| DIN 1.2083,1.2311, 1.2316,1.2738 etc. | |
| JIS NAK80 | |
| High speed steel | AISI T1,M2,M35,M42 |
| DIN 1.3355,1.3343 | |
| JIS SKH2,SKH51 |
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