HSS Steel Round Bar Alloy Round Tool Steel Bar/M2/M25M42/D2/H13

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
556 m.t.
Supply Capability:
2000000 m.t./month

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Product Description:

Description of steel round bar:

Characteristic:Tungsten-molybdenum high speed steel developed by China,high performance in toughness ,hardness, high temperature hardness.


Festures of steel round bar:

Anneal temperature: 840-860

   Relief annealing temperature: 720-760

   Hardening temperature: 1210-1230

   Hardening medium: salt bath under 600,aslo use oil cooling or air cooling

   Normal temper temperation: 540-560 RC Rockwell Hardness after hardening and temperature: 63-66

Production Capacity: 1000 Tons/Month

Tech:EAF+LF+VD+ESR

High strength at elevated temperatures

 

Specifications of steel round bar: 

CSiMnWMoCrVPS
0.80-0.900.20-0.450.15-0.405.50-6.754.50-5.503.80-4.401.75-2.20≤0.030≤0.030

 

Images of steel round bar:

HSS Steel Round Bar Alloy Round Tool Steel Bar/M2/M25M42/D2/H13

FAQ:                                               

1. What is your package?

Packing situation: standard seaworthy packing or as customer required.

2. How long is the lead time?

Delivery time: 45 days after order confirmed.

3. What  payment term do you accept?

Payment: T/T or L/C at sight.

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Q:Can I use steel bar instead of steel bar?
The substitution principle of steel bars is equal section substitution and equal strength substitution. Therefore, we can not use round steel instead of thread steel.
Q:The diameter of 20 solid round steel bend into a circle, what machine bending?
Gear type steel bar benderStructure: gear type steel bending machine mainly consists of several motors, gear reducer, work mechanism and electrical control system. It changed the traditional worm gear drive, and increased the angle automatic control mechanism and brake device.Operation principle: the gear type steel bar bender is driven by a motor with braking, which drives the working disc to rotate. The two inserting seats on the left and right of the working mechanism can be adjusted by the hand wheel without bending, and can be bent and bent with different specifications of the steel bar. The angle is controlled by several different institutions and primary angle limit pin with each other and realize. When the steel bar is bent to the preselected angle, the limit pin touches the travel switch, causes the motor to stop and reverse, recover to the original position, and complete the bending process of the steel bar. In addition, the electric control system also has the characteristics of inching, automatic state, two-way control, instantaneous braking, emergency stop, rapid system short circuit protection, motor overheat protection, etc..
Q:Why is it better to use round steel than flat steel in lightning protection?
In the construction of lightning protection, both round bar and flat steel have different uses. Flat steel is generally suitable for horizontal connection between vertical grounding poles for lightning protection. Round steel is suitable for lightning protectionThe guiding line and connected with lightning. The roof, all of the junctions are connected by welding requirements do not exist, what striking issues... The technical norms of the state said so, does not have what good and bad problem
Q:Why is round steel more expensive than thread steel?
Threaded steel should be used in the construction field, there are generally two, three grade steel, grade HRB335, HRB400 also has four grades, HRB500 thread steel. Steel is divided by tolerance standard of gb. You say there is no comparable price between round bar and screw thread
Q:What is the difference between 40Cr round steel and 40Cr steel forgings?
The casting process constructed a fine grain structure and improved the physical properties of the metal. The utility model has the advantages of high strength and good plasticity, and is suitable for making important parts with large force and high requirement.The properties of forgings are superior to those of ordinary ones.
Q:What are the scientific names of round bar and screw steel?
Round steel and thread steel are just popular terms for steel reinforcement in construction. In the construction, steel by HPB235, belonging to the carbon steel, steel is Q235; steel by HRBxxx, the steel is the most commonly used HRB335 and HRB400, they are called hot rolled alloy steel, cold steel lines, is heat treated in a bar.
Q:What kind of material is the first round steel?
[round bar] refers to the cross section of round solid steel. Round bar is divided into three parts: hot rolling, forging and cold drawing.
Q:Is steel bar round wire? What's the difference? What are the main applications of wire rod?
Round bar is divided into three parts: 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:The problem of dowel bars on concrete pavements?
Light bar shall be adopted for dowel barWith transverse expansion joint as an example: in the face of layer thickness is 220mm, dowel diameter is 28mm (28), the minimum length of the dowel bar is 400mm, the maximum dowel bar spacing is 300mm.
Q:How about tempering No. 45 round bar?
During quenching and tempering, the whole section of the workpiece is quenched and the microstructure of the workpiece is obtained with fine acicular quenched martensite. By tempering at high temperature, the microstructure with uniform tempered bainite is obtained. It is impossible for a small factory to do metallographic analysis of each furnace. It is generally used only for hardness testing. That is to say, the hardness of the quenched material must be reached by the quenching hardness of the material, and the hardness after tempering shall be checked according to the requirements of the drawing.

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