Hot Dip Galvanized Steel Round Bars

Ref Price:
Loading Port:
Payment Terms:
Min Order Qty:
100 m.t.
Supply Capability:
500000 m.t./month

OKorder Service Pledge

Quality Product

Order On-line Tracking

Timely Delivery

OKorder Service Pledge

Credit Rating

Credit Services

Credit Purchasing

Share to:

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,BV,IBR,RoHS,CE,API,BSI,UL
Thickness: 13-300mm Length: 6-12m Net Weight: 2mt

Product Description:

Hot Dip Galvanized Steel Round Bars


Product Description of Hot Dip Galvanized Steel Round Bars

1. Steel grade: ASTM4140, SCM440, 42CrMo, DIN1.7225

2. Length: 6M-12M
3. Diameter: 16mm-300mm

4. Product range: round bar, flat bar, square bar

5. Technique: Hot rolled, forged, cold drawn


Specification of Hot Dip Galvanized Steel Round Bars



Round bar




EAF + LF + VD + Forged + Heat Treatment (optional)

Length (mm)   

Max 12m

Heat treatment

Normalized / Annealed / Quenched / tempered

Flat bar



Delivery condition

Hot forged +Rough machined (black surface after Q/T)+ Turned (optional)




Ultrasonic test according to SEP 1921-84 D/d

Length (mm)   

Max 12m


Chemical Composition of Hot Dip Galvanized Steel Round Bars














<0.04< td="">


Photo Show of Hot Dip Galvanized Steel Round Bars

Hot Dip Galvanized Steel Round Bars

Packing and Delivery:

Packing in bundle package, or as customer's requirements.

Delivery Detail: 45 days after receiving the deposit.


Usage and Applications of Hot Dip Galvanized Steel Round Bars

1. Steel round bar is used in a large number of architectural and engineering structures. Or it can be used in construction of plants for the production of steel house frames, high-voltage transmission towers, bridges, vehicles, boilers, containers, ships, etc.

2. And we can use this kind of product on the performance of the mechanical parts if the demand is not very high.

3. Some special material steel round bar can be used for main shaft of steamer, hummer shank, with big section and supper force.

Company Information

CNBM International Corporation is the most important trading platform of CNBM group.

Whith its advantages, CNBM International are mainly concentrate on Cement, Glass, Iron and Steel, Ceramics industries and devotes herself for supplying high qulity series of refractories as well as technical consultancies and logistics solutions.

Astm 615 Bs4449 B500B Deformed Steel RebarsAstm 615 Bs4449 B500B Deformed Steel Rebars 



1, Your advantages?

     professional products inquiry, products knowledge train (for agents), smooth goods delivery, excellent customer solution proposale

2, Test & Certificate?

      SGS test is available, customer inspection before shipping is welcome, third party inspection is no problem

3,  Factory or Trading Company?

      CNBM is a trading company but we have so many protocol factories and CNBM works as a trading department of these factories. Also CNBM is the holding company of many factories.

4, Payment Terms?

    30% TT as deposit and 70% before delivery.

    Irrevocable L/C at sight.

5, Trading Terms?


6, After-sale Service?

     CNBM provides the services and support you need for every step of our cooperation. We're the business partner you can trust.

     For any problem, please kindly contact us at any your convenient time.

We'll reply you in our first priority within 24 hours.

Send a message to us:

Remaining: 4000 characters

- Self introduction

- Required specifications

- Inquire about price/MOQ

Q:What is the tensile strength of round steel bars of diameter 28?
The tensile strength of round steel bars of diameter 28 is 27079.36~33849.2 kg. It is explained as follows: the material of rebar is generally Q235-A carbon structural steel, its yield strength is 235 MPa, tensile strength is 441~550 MPa, and it is 44~55 kg / mm2. The cross-sectional area of 28 mm in diameter is about 615.44 mm2, and its tensile strength is about 27079.36~33849.2 kg.
Q:What are square steel, rectangular tube, angle steel or light steel?
Large steel: large steel, I-beam, channel steel, angle steel and flat steel are hot rolled, round bar, Fang Gang, six angle iron in addition to hot rolling, there are forging, cold drawn and so on.I-beam, channel and angle steel are widely used in industrial buildings and metal structures, such as factories, bridges, ships, agricultural machinery, vehicle manufacturing, transmission towers, transport machinery, often in conjunction with the use of. Flat steel is used as a bridge, a housing, a fence, a transmission ship, a vehicle, etc. on a construction site. Round steel and square steel are used for all kinds of machine parts, agricultural machinery parts, tools and so on.Medium type steel: medium type steel, medium, groove, corner, round, flat steel use, similar to large steel.Small steel: small steel, middle, round, square, flat steel processing and use similar to large steel, small diameter round steel is often used for building steel
Q:Is round bar steel?
For example, the steel structure material is Q235B, and the steel bar is HPB235. Although the strength is the same, the production process is still different, the requirements of higher steel bar, there is a new specification more stringent.
Q:How many positive and negative tolerances are allowed for round steel GB?
Because of the deviation of cold rolled steel plate and hot rolled steel plate is not the same as the.5mm hot rolling strip is usually made of steel plate shear, the thickness deviation according to the different width and different. But the minimum of plus or minus 0.19, the highest of plus or minus 0.29 this standard applies to the diameter of 5.5mm ~ 250mm hot rolled round and length of hot-rolled square steel 5.5mm ~ 200mm.
Q:The difference between round steel and screw steel
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 which: 5.5-25 mm small round bars are mostly supplied by straight strips. They are used as reinforcing bars, bolts and various mechanical parts, and more than 25 millimeters of round steel. They are mainly used in the manufacture of mechanical parts or seamless steel tube billets
Q:Special steel bar steel products used to do what
Carbon tool steel is high carbon steel basically contains alloy elements, the carbon content in the range of 0.65% ~ 1.35%, the production of low cost, easy to obtain raw materials, good machinability, after treatment can obtain high hardness and high wear resistance, so it is widely used in steel, used to manufacture all kinds of cutting tools, mold, measuring.
Q:Which is stronger, steel pipe or round steel? Which is good at bending?
The strength of the steel pipe is slightly lower, but its weight is light, so as long as the wall thickness is reasonable, the experienced designer uses steel pipe instead of round steel.Like me, that's it
Q:What is the difference between common wire and high-speed wire?
P line: refers to the use of "ordinary mill (usually open-train double wire rod rolling mill)". The rolling speed of 20-60 meters per second, per root weight (disc) in 0.4-0.6 tons (market show is generally three root six head is a market), in the rolling process can only be cooled by air cooling or air cooling line to ensure product performance.
Q:20 round bars are of several grades
No. 20 cold drawn steel belongs to high quality low carbon steel, cold extrusion, carburizing hardened steel. The steel has low strength, toughness, plasticity and weldability. The tensile strength is 355-500MPa, elongation is greater than or equal to 24%.
Q:What is the difference between gcr12 round bar and Cr12 round bar? Can it be used in general?
The two are different in chemical composition.Cr12 is a widely used cold work die steel. It has high strength, good hardenability and good wear resistance, but its impact toughness is poor. The content of Cr was 11.50 ~ 13. The utility model is mainly used for cold punching dies and punches, cold cutting shears, drill sleeves, gauges, wire drawing dies, coining dies, drawing dies, drawing dies and thread rolling dies, which have the advantages of small impact load, high abrasion resistance, and high abrasion resistance.

1. Manufacturer Overview

Year Established
Annual Output Value
Main Markets
Company Certifications

2. Manufacturer Certificates

a) Certification Name  
Validity Period  

3. Manufacturer Capability

a)Trade Capacity  
Nearest Port
Export Percentage
No.of Employees in Trade Department
Language Spoken:
b)Factory Information  
Factory Size:
No. of Production Lines
Contract Manufacturing
Product Price Range