Prime Hot Rolled Carbon Steel Round Bar C30

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Loading Port:
China main port
Payment Terms:
TT OR LC
Min Order Qty:
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:

Prime Hot Rolled Carbon Steel Round Bar C30    

 

GradeC(%)Mn(%)S(%)P(%)Si(%)
Q2350.200.700.045 0.0450.30 
Q2750.380.5-0.80.0450.0450.35
Q3450.201.600.0450.0450.55
SS400
-0.050.05
S235JR0.171.400.030.03

 

Product Discription

Product nameHot rollde round steel bar
StandardGB/JIS/ASTM/DIN/EN
GradeQ235,Q275,Q345,SS400,SS540,A36,ST37-2,S235JR,S355JR
Diameter10-80mm
MOQ10 Metric Ton,also depending on production schedule
Delivery Time20-40 Days
PackingStandard export packing or as you required
Payment termT/T, L/C
Applicationconstruction

 

Theoretical Weight  (kg/m)  



Type

Diameter

(mm)

Weight

(kg/m)

Available Length

Type

Diameter

(mm)

Weight

(kg/m)

Available Length

8Φ

8

0.395

6-9m

38Φ

38

8.900

6-9m

10Φ

10

0.617

6-9m

40Φ

40

9.870

6-9m

12Φ

12

0.888

6-9m

42Φ

42

10.87

6-9m

14Φ

14

1.210

6-9m

45Φ

45

12.48

6-9m

16Φ

16

1.580

6-9m

50Φ

50

15.42

6-9m

18Φ

18

2.000

6-9m

55Φ

55

18.60

6-9m

20Φ

20

2.470

6-9m

60Φ

60

22.20

6-9m

22Φ

22

2.980

6-9m

65Φ

65

26.00

6-9m

24Φ

24

3.550

6-9m

70Φ

70

30.20

6-9m

25Φ

25

3.850

6-9m

75Φ

75

34.70

6-9m

28Φ

28

4.830

6-9m

80Φ

80

39.50

6-9m

30Φ

30

5.550

6-9m

85Φ

85

44.50

6-9m

32Φ

32

6.310

6-9m

90Φ

90

49.90

6-9m

35Φ

35

7.550

6-9m







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Prime Hot Rolled Carbon Steel Round Bar C30Prime Hot Rolled Carbon Steel Round Bar C30

Prime Hot Rolled Carbon Steel Round Bar C30Prime Hot Rolled Carbon Steel Round Bar C30

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Q:The diameter of 20 solid round steel bend into a circle, what machine bending?
Worm and worm type steel bar benderStructure: worm and worm type steel bending machine, mainly each family, motor, transmission system, work mechanism (work disk, insert seat, gripper, shaft, etc.) and control system. A walking wheel is arranged under the frame for easy movement.Working principle: the power of the motor is rotated by the V belt pulley, the two straight gear and the worm gear rod, and then drives the working disk to rotate. The working disk usually has 9 shafts, the center hole is used to insert the central shaft, and the 8 hole seats around each have 6 holes, which are used to insert the retaining shaft. In order to move the reinforcing steel bar, two times of each work table is also provided with a feeding roller. When working, according to the bending shape of the steel bar, the square of the reinforcing steel bar is arranged between the central axis of the work disc and the corresponding forming shaft, and the inner side of the iron block is blocked. When the working disc is rotated, one end of the reinforcing bar is prevented from rotating by the iron blocking shaft, the central shaft position is fixed, and the forming shaft is rotated in an arc direction around the central shaft, and the reinforcing bar is bent.As a result of the specification, the bending diameter of the steel bar shall be no less than 2.5 times of the diameter of the steel bar when it is taken as a 180 degree bending hook. Therefore, the center shaft is also made into 16~100mm in 9 different specifications to meet the requirements of bending different diameter steel bars.
Q:Could you tell me what is the difference between steel pipe and round steel?
The middle of the steel pipe is hollow, and the round steel is solid. When compared with the solid steel such as round steel, the steel tube has the same flexural strength and torsion strengthLight weight, is an economic section of steel, widely used in the manufacture of structural and mechanical parts, such as oil drilling pipe, automobile transmission shaft, bicycle frame and steel scaffolding used in construction.Making ring parts with steel tubes can improve data application rate, simplify manufacturing process, save data and work hours, such as rolling bearings, rings, Jack sleeves, etc., and have been widely used in steel pipe manufacture.
Q:Will the theoretical weight of thread steel and round steel be the same?
The theoretical weight of threaded steel and round steel is the same. The middle part of the steel bar size ratio is small, the design time actually unit weight are the same, just screw steel crescent and transverse ribs prominent, resulting in heavy steel should be better than the illusion of formula is 0.00617 multiplied by the square of the diameter / m.
Q:Grade 1 steel is round steel, grade two steel is ribbed thread steel. Are the weight of the two units the same?
Grade two steel is ribbed steel, but the average diameter is calculated. The chemical composition of grade steel and grade two steel is different, but the density of them is the same. Therefore, the unit weight of grade 1 steel and grade two steel is the same.
Q:Is there a standard for the grounding of pumping units and the length of the length of the angle steel or round steel?
Usually, the grounding depth is 2 and 5M, and the key is that the grounding resistance value should be below 4 Euro
Q:What are the differences between hot rolled stainless steel rounds and cold drawn round ones?
Hot rolled round steel, used in construction and general hardware parts processing is very common. Cold drawn round steel (do not know is not cold dial round bar). But I understand by the cold dial round bar Also mainly used in hardware parts processing and production. Such as hinge shaft core or other surface and diameter requirements of production and processing occasions.
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:What is the difference between common wire and high-speed wire?
The universal wire and high speed wire are the wire rods (bars) of the rolling mechanism.High wire: refers to the use of high-speed torsion mill rolling wire rod. The rolling speed of 80-160 M / s, each weight (disc) in 1.8-2.5 tons, tolerance of high precision (up to 0.02mm), in the rolling process by adjusting the process parameters (especially in the cooling line) to ensure the different requirements for the product.
Q:Is there any technique for welding round steel?
The welding position is horizontal fillet welding, to control the size of the weld pool of available elliptic transport method the molten iron is brought up, and then try to consider the position of welding welding (a little more than half of small to)
Q:20# difference between round bar and A3 round bar, can they be used separately?
The first floor of the answer is lame, 20 is a low carbon steel, low carbon steel is A3, and the two carbon content are equivalent, both mechanical properties are equivalent, but they are not the same, the 20 steel is high quality carbon steel, carbon structural steel is A3, not to see the difference. 20 steel better quality, chemical composition, impurity content control are better, and A3 to casually, so if you only occasionally used, that is no problem, if often use, it is a better consistency of 20 steel

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