Description
Product description
High Speed Steel Mill Roll (HSS) Rolls for Bar Mill
1. Chemical Composition (%) & Hardness of Body
The shell of HSS Rolls is a high carbon alloy steel containing Cr,Mo,W,V and Nb.The Microstructure consists of complex carbides embedded in a tempered martensitic matrix.Control of the carbon and a complex heat treatment allows the optimization of wear resistance,thermal fatigue resistance and oxide film formation,whilst maintaining low residual stress values. 1. Chemical Composition (%) Classification | C | Si | Mn | Cr | Ni | Mo | W | V | HSS | 1.50-2.20 | 0.30-1.00 | 0.40-1.20 | 3.00-8.00 | 0.00-1.50 | 2.00-8.00 | 0.00-8.00 | 2.00-9.00 | S-HSS | 0.60-1.20 | 0.80-1.50 | 0.50-1.00 | 3.00-9.00 | 0.20-1.20 | 2.00-5.00 | 0.00-3.00 | 0.40-3.00 |
2.Physical Performance (N/mm²) Tensile Strength of Work Layer | ≥760 | (HSD) Hardness of Body | 75-95 | (HSD) Hardness of Neck | 30-45 | Tensile Strength of Core(N/mm²) | ≥400 |
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material:4130, 4140, 4317, 4142, 4340, UNS440, 34CrNi3Mo, 25Cr2Ni4MoV, 18CrNiMo5, 30CrMo, 9Cr2Mo, 9Cr2W, 9Cr3Mo, 60CrMoV etc.ApplicationThey are mainly applied to hot&cold rolling mill work rolls, back-up rolls. Adamite roll or high speed steel roll used in the early finishing stands of a lot strip mills.Company profile
Sennier Machinery Technology Development Co., Ltd. is located in industrial circle of Huangli Town, Wujin District, Changzhou City, Jiangsu Province. Our company was founded in 2010, formerly a professional roller rocessing factory, now has more than 100 sets of smelting, casting, heat treatment, processing and inspection equipment, including more than 20 sets of casting and heat treatment equipment, more than 80 sets of inspection and processing equipment.
Our annual output of rolls and metallurgical accessories is more than 8000 tons.
Our main products are alloy cast iron roll, cast steel roll, forging shaft, alloy straightening roller ring and so on.
Our company has formulated strict operating rules and excellent process procedures, from raw materials to finished products have strict size and quality inspection.
We adhere to the concept of customer first, the pursuit of higher precision and higher quality product production, welcome your consultation and cooperation.
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FAQ
Q: Do you have large amount of steel products in stock?
A: Yes , we have a large-scale indoor warehouse with perennial spot stocks totally above 5000 tons.
Q: How long is the delivery time?
A: Generally it is within 10 days. If the goods is not in stock , according to the quantity it is within 30 days.
Q: Do you provide the samples? Free or Extra?
A: The cost of the samples is according to the value.The cost of the freight is necessary.
Q: How to order?
A: Buyer sends the enquiry --> Buyer gets the quotation --> Order confirmation --> Buyer send the deposit --> Seller prepares goods --> Seller makes the strict inspection --> Buyer Arranges Balance Payment --> packing and delivery.
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