special alloy mould steel GB 20Cr
special alloy mould steel GB 20Cr properties and heat treatment forged piece, Including special alloy mould steel GB 20Cr application and specifications, We have all specifications，Including special alloy mould steel GB 20Cr steel plate, special alloy mould steel GB 20Cr sheet, special alloy mould steel GB 20Cr square steel, special alloy mould steel GB 20Cr flat bar,special alloy mould steel GB 20Cr round bar,special alloy mould steel GB 20Cr forgings, we can own production and sales.
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We can produce the special alloy mould steel GB 20Cr has the following specifications:
Round bar steel: 1mm to 3000mm
Square-shape steel: 1mm to 2000mm
Plate steel:0.1mm to 2500mm
Width: 10mm to 2500mm
Lenth: We can supply any lenth based on the customer's requirement.
Forging: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes
Tubings: OD: φ6-219 mm, with wall thickness ranging from 1-35 mm.
Finished goods condition: hot forging/hot rolling + annealing/normalizing + tempering/quenching + tempering/any conditions based on the customer's requirement
Surface conditions: scaled (hot working finish)/ground/rough machining/fine machining/based on the customer's requirement
Furnaces for metallurgical processing: electrode arc + LF/VD/VOD/ESR/Vacuum consumable electrode.
Ultrasonic inspection: 100% ultrasonic inspection for any inperfections or based on the customer's requirementExcellent service for all kinds of industries,with advantages of technologies, equipment and price.
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Chemical composition % of the ladle analysis of grade special alloy mould steel GB 20Cr and Standards
1:The process :EAF+LF+VD+Forged
3:Special use :mould steel
4:Tickness:20-400MM
5:Length:2000-5800MM
Usage: Applied in the thickness no less than 2mm punch mould ,all kind of small mould for shearing and cutter together with screw rolled or slapper mould as well as some other forming mould like rulers
Characteristic: E.S.R. materials, high compression strength and fine robustness. The spherical annealed make it easily processed by shearing and cutting with no crake while processing.
Standard
GB
JIS
ASTM
ISO
DIN
steel number
Cr12Mo1V1
SKD11
D2
160CrMoV12
1.2379
Chemical Composition:(%)
C
W
Mo
Cr
V
Mn
Si
P
S
1.45-1.60
0.70-1.00
11.00-13.0
0.70-1.00
0.20-0.60
0.20-0.60
≤0.030
≤0.020
Delivery hardness:≤255HB
Delivery status: As Hot rolled/Forged. Delivery condition: annealed
Available size: flat bar
Thickness: 20mm to 220mm
Width: 200mm to 510mm
Round Bar
50mm-260mm
(1)Heat Treatment condition;
Quenching temperature: 1000-1040 degree Celsius
Cooling Medium: oil-cooling or air-cooling
Tempering temperature: 180-200 degree Celsius, by two times;
Tempering Hardness: 63.HRC
1060-1080 degree Celsius
(2) Heat Treatment condition; degree Celsius
Quenching temperature: 1060-1080 degree Celsius
Cooling Medium: oil-cooling or air-cooling
Tempering temperature: 500-5400 degree Celsius. by two times
Tempering Hardness: 59.0-61.0HRC
Machining performance
Download special alloy mould steel GB 20Cr the mechanical properties of the report, the report provides detailed performance analysis and application. Download >>
Principal Design Features
One of the most widely used precipitation hardening grades in the business. While soft and ductile in the solution annealed condition, it is capable of high properties with a single precipitation or aging treatment. Characterized by good corrosion resistance, high harness, toughness and strength.
Machinability
Long, gummy chips characterize this alloys machinability. It can be machined in the annealed condition, however condition H1150M will yield best results. Post machining solution treatment of parts will be required prior to final hardening if machining in this condition.
Heat Treatment
CONDITION A--Soak at 1900 F (1038 C) for 30 minutes and cool below 60 F (16 C) for complete martensite transformation. CONDITION H 950- Treat Condition A material at 900 F(482 C) for 1 hour, air cool.. CONDITION H925, H1025, H1075, H1100, H1150- Soak solution treated material for 4 hours at specified temperature, air cool, CONDITION H1150M- Soak solution treated material at 1400 F (760 C) for 2 hours, air cool, then re-heat to 1150 F (620 C) for 4 hours and air cool.
Welding
Successfully welded by common fusion and resistance methods, this alloy should not be joined by oxyacetylene welding. AWS E/ER630 filler metal is recommended if required.
Forging
Soak for 1 hour at 2150 F (1177 C) prior to forging. Do not work below 1850 F (1010 C). Post-work solution treatment is required prior to final hardening.