4Cr13 415 Hot Rolled Steel Sheets Tool Steel Bar/Block
HUNAN QILU INDUSTRIAL CO., LTD.- Type：Die Steel Plate
- Standard：AISI, ASTM, DIN, JIS, GB, BS
- Technique：Forged
- Surface Treatment：Polished
- Special Use：Mold Steel
- Application：Die Steel Bar
Base Info
- Model NO.：1.2083
- Heat Treatment：Annealed, Qt
- Payment Term：30% Tt Deposit, Balance Against Bl Copy
- Length：3000-5800mm
- Ex-Stock：No
- Delivery Date：30 Days
- Ut Standard：Sep 1921-84 D,D
- Grain Size：ASTM E112
- Non-Metallic Inclusiton：ASTM E45
- Transport Package：Seaworthy Package
- Specification：DIA 6-1200
- Trademark：Qilu
- Origin：China
- HS Code：722840
- Production Capacity：500, 000tons,Year
Description
6.Heat Treatment
Annealing
Slowly heat to 750-800ºC,then slowly Cools to 538ºC(1000ºF) in heat treatment furnace. Then cool in air. After annealing hardness HBS: 225 Max
Hardening
1.2083 steel having very high hardenability and should be hardened by cooling in still air. The use of a salt bath or controlled atmosphere furnace is desirable to minimize decarburization, and if not available, pack hardening in spent pitch coke is suggested.
Quenching
Quenching temperature / ºC : 1020~1050
Quenching medium: Oil cooling
Hardness: 50 HRc
Tempering
Tempering temperature / ºC : 200-300
After tempering hardness HRC or higher: 28-34 HRc
For hot forged or hot rolled bar, usually the delivery condition is hot forged or rolled, annealed, rough turned.
For hot forged plate, usually the delivery condition is hot forged, annealed, milled surface.
For hot rolled plate, usually the delivery condition is hot rolled, annealed, black surface.
Hunan Qilu Industrial Co., Ltd has the capacity to forge round steel, steel flat, square steel, module, shaft and roller, etc. The main specifications of the products include Φ80-1000mm forging materials and 80-1200mm square billets and which the maximum piece weight can reach 50T.
Hunan Qilu Industrial Co., Ltd were already engaged in exporting steel for 11 years, could supply a great variety of hot forged, hot rolled and cold drawn Steels, including engineering steel, cold work tool steel, hot work tool steel, plastic mold steel, spring steel, high speed steel, stainless steel etc., besides Qilu Industrial also has their own heating treatment shop and machining shop to provide heating and cutting service.
Since 2008 year, Hunan Qilu Industrial has the right to export all FORGED STEEL behalf of Qilu Speical Steel Co.,ltd which is specialized in smelting and forging of special steel since 1965 year, now Qilu special steel is one of the biggest manufacturer of forged product in China.The forged products are used in Automotive, Aerospace, Power Generation, Oil & Gas, Transportation and Industrial. We already set up the warehouse in Wuxi and Dongguan city, more than 20000 tons ex-stock could be supplied with kinds of size.
Qilu Industrial is the professional one-stop steel manufacturer, stockist and exporter in China, our customers spread all over the world, include West Europe, North America, South America, Asia, Middle Asia, Africa, Australia, etc.
The company owns advanced special steel smelting facilities and forging processing equipments, the main steel-making equipment include 2 sets of 50t ultra-high power electric arc furnaces,2 sets of 60t LF refining furnaces,1 set of 60t vacuum degassing refining furnace and 4 sets of 1-20t electroslag re-melting furnaces.
The main forging equipments mainly include:3 sets of 5t electro-hydraulic hammers, 1 set of high-speed forging units of 800t,1600t,2000t and 4500t respectively.
Hunan Qilu Industrial CO., LTD
Web: qilusteel.en.made-in-china.com