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Hot rolled steel round bar

Size:Ф20~350 Round steel belongs to carbon structural steel for construction and machinery, while square steel belongs to carbon structural steel for machinery. Both of them are simple section steel, and their section shapes are respectively round and square. Low carbon is mainly used for drawing wire, forging rivets, bolts, nuts and other metal products of raw materials. Medium carbon round steel and square steel are generally used to make mechanical structural parts.

Classification :

PRODUCT DETAILS

Keywords: Zerchen Energy

Round steel and square steel are both types of carbon structural steel widely used in construction and machinery. Round steel is predominantly used for drawing wire, forging rivets, bolts, nuts, and other metal products. On the other hand, square steel is commonly employed in machinery applications. 

These two types of steel are characterized by their simple section shapes, with round steel having a circular cross-section and square steel featuring a square cross-section. In particular, low carbon round and square steel are essential raw materials for the production of various metal products. 

Meanwhile, medium carbon round steel and square steel are typically utilized in the fabrication of mechanical structural components due to their strength and durability. Overall, round steel and square steel play crucial roles in a wide range of industrial applications, serving as fundamental building blocks for the construction and machinery sectors.
 

CategoryGradeSizeImplementation StandardsApplicationRemark
High quality carbon structural steel20~45, 50Mn,S15~55C, S20C,S35C,S45C,C45,C50,SAE1045  1015,A105,Cf53,UC1; S235JR,S235J0,S235J2 S355JR,S355J0,S355J2

 

 

φ16~φ350                                                                          

GB/T 699,JIS G4051, EN10083-2,ASTM A29, Technical aggrement for supply Technical protocolUsed for making all kinds of shafts, connecting rods, crankshafts, crank pins, gears, rotary supports, valve bodies and fasteners of automobiles, engineering machinery and other machinery. For Manufacturing of All Kinds of Bearing Parts, Screw, Connecting Rod, Rigging, Metal Tools, etc. 
Q355 series LF2, LF6, S355J2 series S355NL seriesQ355 LF2 S355J2Ф20~350GB/T 1591 EN 10025 EN 10021 Technical protocolUsed for making structural parts such as equipment connectors, shafts, valve bodies,etc. Of machinery, petroleum, water conservancy, shipbuilding, construction and other fields. 
Structural alloy Steel/Alloy structure steel20-45Mn2,20-45Cr 15-42CrMo,40CrMnMo,38CrMoAI,20-40CrNiMo,42-50CrMo4,B7,SCM415-440,SNCM431,AISI4130,AISI4140, AISI4137H,AISI4145H,AISI4340, AISI8630Ф16~Ф350GB/T 3077 JIS G4053 EN 10083-3 ASTM A29 Q320582 JYG22  Technical protocolUsed for making structural parts such as shafts, connecting rods, gear wheels, etc. of wind driven generater, mining machinery, engineering machinery, petroleum machinery, machine tools, automobiles and lifting equipment. 
Tube billet steel20G,15CrMoG,12Cr2MoG, 12CrlMoVG,10Cr9MolVNbN, SA-210C, Tla,Til,T12, T22,T5,WB36,T91, 25CrMo, 30CrMo,4130,34CrMo4, 15NilMnMoNbCu,10Cr9MolVNbN, CB770, CB89027CrMo-F,ZD135, 33Mn2V,36Mn2V,22Cr3MoTi, 29CrMoVNbФ20~Ф300YB/T 5137 GB 30584 API 5CT ASME SA-213/SA-213M ASTM A335/A335M Technical protocolUsed for making steel pipes in oil exploitation, natural gas transmission, crane boom, thermal power generation, high-pressure gas cylinders, mechanical structures and other fields.Carbon steel round pipe billet; Alloy structure round pipe billet; High pressure smls pipe billet
Grinding ball steelB2 B3 B250A B300A B350A B400A S550A S550C S650A S-704 S-901Ф20~120Technical protocolUsed for making grinding balls in metallurgy, mining, cement and other fields. 
Gear steel/Gearing steel20CrMnTiH,22CrMoH(SCM822H), 20CrMnMoH,20CrNiMoH,16-28MnCr5H,18CrNiMo7-6H, SCM420H, SAE8620H,TL4227H,45H,15CrH~45CrH,42CrMoH,16CrMnH,15CrMnBH,40MnBH,20MnVBH,20MnTiBH,SCr420HФ20~350GB/T 5216 EN 10084 ASTM A304  Technical agreement for supply Technical protocolUsed for making gear wheels of automobiles, wind power, engineering machinery and other fields. 

 

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APPLICATION AREAS

Petroleum

Marine Exploration

Coal Mine

Architectural Engineering

Electric Field

Boiler Field

Field of chemical industry

Textile Field

FAQ

Q: What is your MOQ?

A: We will provide Original Mill Usually 25 tonnes, but it can be adjusted according to your needs and the actual situation of the inventory.

Q: What is the delivery time?

A: 10-15 days

Q: What kind of payment terms would you accept?

A: We always do T/T.30% T/T as deposit,70% T/T as balance and LC at sight

Q: What certifications do your products have?

A: We have ISO 9001, SGS, EWC and other certifications.

Q: Do you provide samples Is it free or extra?

A: Yes, we could offer free samples.

Q: Once the products received by customer were found not comply with the products or contract demands, what will you do?

A: We will compensate the customer for all the loss without any hesitation.

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