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1)ISO9000·2)casting:Static, centrifugal·3)bar mill,wire rod mill,section mil·4)Application:steel rolling mill work roll
| Condition | New | Type | Hot Rolling Mill |
|---|---|---|---|
| Place of Origin | Hebei China (Mainland) | Model Number | Dia:300-1200mm |
| Voltage | 1 | Power(W) | 1 |
| Dimension(L*W*H) | 1 | Weight | 1 |
| Certification | iso9001 | Warranty | 1 |
| After-sales Service Provided | Overseas third-party support available | Hot rolling | Casted |
| OEM | we can accept a trial order | inspection | UT,Metallographic examination,hardness |
| our advantages | professional teams,strictly check,best service,rich experience,etc | plant | we have our own factory and welcome to visit |
| our customers | India,Vietnam,Pakistan,Thailand,Columbia,Turkey,the United States,etc | exhibition | we always attend some exhibition in domestic and abroad |
| Details | 1)ISO9000 · 2)casting:Static, centrifugal · 3)bar mill,wire rod mill,section mil · 4)Application:steel rolling mill work roll |
| Packaging Detail | Wooden case, Metal pallet |
|---|---|
| Delivery Detail | 90 DAYS |
Hot rolling mill work roll
1)Nodular cast iron rolls
Ductile iron with more Ni, Mo alloy can obtain good pearlite, bainite, martensite matrix organization, and graphite shape for the ball, good thermal conductivity, tensile strength, high by changing the organization as the bainite, martensite and needle ductile iron the chemical and heat treatment process, we can obtain very dense mesh primary cementite, improve abrasion resistance.
-- Mechanical Property
Rod surface hardness | HSD70-90 |
| Core department hardness | HSD35-55 |
| Core department tensile strength | >500Mpa |
-- Application
Nodular cast iron rolls are mainly used in the billet and roughing stand of hot rolling mills;sections mills,tube mills,bar mills and wire mills.
| Spheroidal Graphite Pearlitic Roll (SGPI) | 2.90~3.60 | 1.40~2.20 | 0.40~1.00 | ≤0.15 | ≤0.03 | 1.50~2.00 | 0.10~0.60 | 0.20~0.80 |
| Spheroidal Graphite Pearlitic Roll (SGPII) | 2.90~3.60 | 1.20~2.00 | 0.40~1.00 | ≤0.15 | ≤0.03 | 2.01~2.50 | 0.20~1.00 | 0.20~0.80 |
| Spheroidal Graphite Pearlitic Roll (SGPIII) | 2.90~3.60 | 1.00~2.00 | 0.40~1.00 | ≤0.15 | ≤0.03 | 2.51~3.00 | 0.20~1.00 | 0.20~0.80 |
-- Mechanical Property
| Spheroidal Graphite Pearlitic Roll (SGPI) | 60~70 | 35~55 | >450 |
| Spheroidal Graphite Pearlitic Roll (SGPII) | 55~65 | 35~55 | >450 |
| Spheroidal Graphite Pearlitic Roll (SGPIII) | 62~72 | 35~55 | >450 |
3)Bainitic Nodular Cast Iron Rolls
Alloy elements of Ni ,Mn, Cr, Mo etc are added to bainitic nodular cast iron rolls for obtaining acicular(bainite-martensite)matrix in its microstructure of these rolls. Its strength and toughnes is higher than Perlitic Nodular Cast Iron Rolls, wearability is also better than latter. These rolls can be produced by static casting or centrifugal casting.
Brand | C | Si | Mn | Cr | Ni | Mo |
SGB 1 | 3.00-3.50 | 1.40-2.40 | 0.20-0.80 | ≤0.50 | 2.50-3.50 | 0.40-1.00 |
SGB 2 | 3.00-3.50 | 1.20-2.00 | 0.20-0.80 | 0.20-1.00 | 3.00-4.50 | 0.40-1.00 |
-- Mechanical Property
Brand | Barrel Hardness(HS) | Tensile Strength(Mpa) | Bending Strength(Mpa) | Application |
SGB 1 | 55-70 | ≥400 | 600-800 | Small profiled bar, stick, narrow steel finishing mill frame, high speed wire pre-finishing rolling |
SGB 2 | 62-80 | ≥400 | 600-800 |
4)Centrifugal Acicular nodular cast iron roll
| Centrifugally Acicular nodular cast iron rolls(SGAI) | 2.90~3.60 | 1.20~2.20 | 0.20~0.80 | ≤0.10 | ≤0.03 | 3.01~3.50 | 0.20~1.00 | 0.50~1.00 |
| Centrifugally Acicular nodular cast iron rolls(SGAII) | 2.90~3.60 | 1.00~2.00 | 0.20~0.80 | ≤0.10 | ≤0.03 | 3.51~4.50 | 0.30~1.50 | 0.50~1.00 |
-- Mechanical Property
| Centrifugally Acicular nodular cast iron rolls(SGAI) | 55~78 | 32~45 | >350 |
| Centrifugally Acicular nodular cast iron rolls(SGAII) | 55~78 | 32~45 | >350 |
5)Indefinite Chilled cast iron roll
The feature of this casting roll is that it shaped into graphite ball and its performances can be compared with that of alloy infinite chilled roll, and its intensity is higher than that of infinite chilled one, so it is usually used for rest energy casting.
-- Chemical Composition
| Grade | Hardness(HSD) | C | Si | Mn | Ni | Cr | Mo |
| Indefinite-I | 60-70 | 3.0/3.5 | 0.5/1.0 | 0.5/1.0 | 0.5/1.0 | 0.5/1.0 | 0.2/0.6 |
| Indefinite-II | 62-72 | 3.0/3.5 | 0.5/1.0 | 0.5/1.0 | 1.0/2.0 | 0.5/1.0 | 0.2/0.6 |
| Indefinite-III | 65-75 | 3.0/3.5 | 0.5/1.0 | 0.5/1.0 | 2.0/3.0 | 0.7/1.2 | 0.2/0.6 |
| Indefinite-IV | 70-85 | 3.0/3.5 | 0.5/1.0 | 0.5/1.0 | 3.0/5.0 | 1.0/2.0 | 0.2/0.6 |
-- Physical properties
| Hardness of shell | HSD60-85 |
| Hardness of neck | HSD35-48 |
| Tensile Strength of core | ≥450Mpa |
-- Application Scope
For the finishing stands of continuous rolling mill of strip and bar, the pre-finishing stands of high speed wire, the intermediate and the front of finishing stands of small section, also utilized in thin plate and straightening roll.
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