1.2344 / SKD61 Hot Work Die Steel Round Bar

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China main port
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5 m.t.
Supply Capability:
100000 m.t./month
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Item specifice:

Standard: AISI,JIS,GB,BS,DIN,API,EN,ASTM Technique: Hot Rolled,Cold Rolled,Cold Drawn,ERW,Forged,Saw,Extruded,EFW,Spring Shape: U Channel,Square,C Channel,Hexagonal,Round,Rectangular,Oval,LTZ
Surface Treatment: Galvanized,Coated,Copper Coated,Color Coated,Oiled,Dry,Chromed Passivation,Polished,Bright,Black,PVDF Coated Steel Grade: Q195,Q215,Q235,Q215B,Q235B,RHB335,HRB400,200 Series,300 Series,400 Series,600 Series,SS400-SS490,10#,20#,A53(A,B) Certification: ISO,SGS,CE
Thickness: as required Length: as required Net Weight: as required

Product Description:

1.2344 / SKD61Hot Work Die Steel Round Bar

 

Comparative standards:

AISI/ASTM H13,X40CrMoV5-1, DIN 1.2344, JIS SKD61,  BS BH13, NFA Z40CDV5

Product Descriptions:

Chemical   Composition(%) 

 C

Si

 Mn

 Cr

 S

P

 Mo

 V


  0.32-0.45

0.80-1.25

0.20-0.60

4.75-5.50

 ≤0.02

≤0.03

1.10-1.75

0.80-1.20


Dimesions


Flat Bar

Cold Work Tool Steel

Thickness: 20~450mm;Width:200~600mm

Length:2000~6000mm

Hot Work Tool Steel

Thickness: 20~650mm;Width:200~1200mm

Plastic Mold Steel

Thickness: 20~600mm;Width:200~1200mm


Round Bar

Cold Work Tool Steel

Dia:20~600mm

Length:2000~6000mm

Hot Work Tool Steel

Dia:20~650mm

Plastic Mold Steel

Dia:20~650mm

Dimensions can be customized

Heat Treatment 


Hardness

60-64HRC

-

Anneal

840-860°C

≤207-255HB

Quenching

980-1040°C

Air or oil cooling

Tempering

510-540°C

60-64HRC, tempering twice

- It is annealed before ex-factory, which ensure good metallographic structure, proper hardness and good workability. There is no need to anneal again.

- But It must be re-annealed if reforged, as the original organization and performance are destroyed after reforged, and the forging stress increased.

- Normally it will be annealed twice and the temperature of the second annealed is 20°C lower than the first one.


1.2344 / SKD61 Hot Work Die Steel Round Bar1.2344 / SKD61 Hot Work Die Steel Round Bar

1.2344 / SKD61 Hot Work Die Steel Round Bar1.2344 / SKD61 Hot Work Die Steel Round Bar

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Q:What is the tensile strength of round steel bars of diameter 28?
The maximum tensile strength of material resistance uniform plastic deformation, tensile specimens before under maximum tensile stress, the deformation is uniform, but beyond the metal after the necking phenomenon began to appear, which produce concentrated deformation; for no (or very small) brittle materials with uniform plastic deformation, it reflects the fault the resistance of the material. The symbol is Rm (GB/T 228-1987, the old GB standard, the tensile strength symbol is b), the unit is MPa.
Q:The problem of dowel bars on concrete pavements?
The left and right half of the casting, the middle of the set is a longitudinal pull rod, tie rod settings and your panel thickness and plate width, length of the boardTo Portland cement concrete surface layer as an example: when the plate is 3M, the thickness of the surface layer is 200-250mm, the rod Phi 14 * 700mm * 900mm rebar length and spacing from the lateral transverse joint distance not less than 10mm (mean distance is a piece of plate length is 4 meters to the two plates the net is not small 100mm).
Q:Will the three steel is steel? It is a steel bar?
Thread steel through the material is divided into two grades of steel (HRB335), three grades of steel (HRB400), which is now commonly used name, but also seismic steel (HRB400E) and so on. Grade 1 steel is wire, and the building materials are Q235 and HPB235. Other wire materials are for industrial use.
Q:How about the difference between round steel and shaped steel? Where are they mainly used?
Low carbon steel structure steel Q235, Q345 rolled out section is I-shaped, C shape, L shape, flat strip, plate shape... Etc.... Called into "type", as used in steel structure component.
Q:What is the difference between the heat treatment of cold drawn round steel and the heat treatment of wrought round steel?
Annealing: the annealing of hypoeutectoid steel workpiece heated to AC3 above 20 - 40 degrees heat after a period of time, furnace cooling (or buried in the sand or lime cooling) to 500 degrees Celsius in air cooling heat treatment process.
Q:45# what are the main rounds for?
45# round bars are divided into three kinds: hot rolling, forging and cold drawing. Standard Specification for hot rolled round steel is 5.5-250 mm. Of them: 5.5-25 mm small round bars are mostly supplied by straight strips. They are used as reinforcing bars, bolts and various mechanical parts. They are more than 25 millimeters of round steel. They are mainly used in the manufacture of mechanical parts or seamless steel tube billets.
Q:Round bars and ribbed stirrups are much better
The flexibility of hot rolled round steel bar is better than that of ribbed steel bar, and its fatigue stress amplitude is wide allowable. It is suitable for the components under dynamic load, as well as lifting rings, rings and lifting workpieces;
Q:What are the differences between the products made of wrought round steel and hot rolled round steel and tested by mechanical testing after heat treatment?
In comparison, the general longitudinal performance of hot rolled round bar is better than that of transverse or tangential direction, and the difference between the two values is obvious. The banded structure is more obvious in the longitudinal microstructure, and the deformation of non-metallic plastic inclusions is more obvious
Q:Q235 and mechanical properties of hot rolled steel cold drawn steel have what difference, Q235 hot rolled steel with 12 combined shearing machine has a number of very hard, the damage of the blades, why
The difference between hot rolled steel and cold rolled steelHot rolled steel contains slightly higher carbon content than cold rolled steel. The density is the same in cases where the composition is not constant. But if the composition is different, such as stainless steel, whether cold-rolled or hot rolled steel, the density is about 7.9g/cm3. Specific depends on the ingredients, hot-rolled steel plate is only better ductility, steel is also under pressure.Hot-rolled steel is divided into structural steel, low carbon steel, welding bottle steel, and then according to various kinds of steel to find the steel that you need, check the density and composition of the specific steel.Hot rolled steel is low in hardness, easy to process and good in ductility.
Q:How many meters is the minimum loading surface of galvanized steel wire for grounding grid?
Refers to the galvanized flat steel width 12-300mm, thickness 4-60mm, cross section is rectangular and with pure edge of galvanized steel. Galvanized flat steel can be finished steel, also can be galvanized pipe blank and galvanized belt. With high strength, light structure: strong grid welding structure, so that it has high load, light structure, easy lifting and other features, beautiful appearance, durable.Galvanized flat steel can be used to produce iron, tools and mechanical parts, and is used as frame structures and escalators for buildings.

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