Round Steel Bar

The round steel is divided into three kinds: hot rolling, forging and cold drawing. It is mainly used to make mechanical parts, seamless tube billets and so on. The specifications of hot rolled round steel are 5.5-250 mm, of which 5.5-25 mm small round steel is mostly supplied by straight bars, usually used as reinforcing bars, bolts and various mechanical parts: hot-rolled round steel larger than 25 mm, mainly used for manufacturing machine parts or seamless steel tube billets.

Hot rolled round steel has many advantages, such as high hardenability, high hardness, good wear resistance and small heat treatment deformation. It is commonly used to make cold work die under heavy load, large production volume and complex shape. But the Q345B low alloy steel is prone to brittleness during its operation. The study shows that the improvement of the morphology and distribution of carbide in Q345B low alloy steel can effectively improve the toughness of the material.

Forged steel refers to the steel that can be made by forging the blank or part. The hot forging process of high sulphur, high copper content or low purity of structural steel is poor. Continuous destruction of sulfur free cutting steel due to poor plasticity, high carbon and high alloy steel with high resistance to deformation, not suitable for cold forging or warm forging. In addition to analyzing the technological properties such as deformation capacity and deformation resistance, the study of forging steel should meet the requirements of the performance and cost of the forgings.

With the development trend of high strength, toughness and lightweight, forging industry is pursuing high material utilization, high accuracy, high efficiency, low energy consumption and low cost. The development of forging steel can not be separated from the development of evaluation and application technology. Easy cutting steel and non quenched hot forging, cold forging heat treatment of steel parts is reduced to simplify the process cost, improve production efficiency and energy saving technology of main materials; micro alloying is to improve the strength and toughness of parts and process performance, high performance and low cost effective means of forging.

Our main products include hot rolled/cold drawn/forged round bar. Can do heat treatment according to the customes’ needs.

Diameter:6mm– 500mm Length: 1000-12000mm



Steel Grade


Carbon Structural Steel

SS400, S10C, S20C, S35C, S45C, S50C

Alloy Structural Steel

SCr420, SCr440, SCM440, YAW-TEN50


Carbon Structural Steel

1010, 1020, 1035, 1045, 1050

Alloy Structural Steel

5120, 5140, 4140, 8620H,4130


Carbon Structural Steel

St37-2, C10E, C22E, C35E, C45E, C50E,

Alloy Structural Steel

17Cr3,41Cr4, 42CrMo4, 10CrMo9-10


Carbon Structural Steel

Q235, 10, 20, 35, 45, 50

Alloy Structural Steel

20Cr, 40Cr, 35CrMo, 42CrMo, 38CrMoAl, 20CrMnTi,

20CrNiMo, 40CrNiMo, 30CrMnTi, 12Cr1MoV, 20CrMnMo,

H13, 30CrMnSi, 30CrNiMo,

Henan Steel Guang International Trade Co., Ltd. is a professional 4140 bar stock supplier, we provide 4140 steel square bar,section steeland etc. Want to know more? Please contact us.

Отправить запрос, связаться с поставщиком

Кому: Henan Steel Guang International Trade Co., lTD.
Ваш E-mail:
Текст письма:

Send to other suppliers

Другие товары поставщика

ASTM A515 / ASME SA515
ASTM A515 / ASME SA515 ASTM A515/A515M Standard Specification For Pressure Vessel Plates, Carbon Steel, For Intermediate-And Higher-Temperature Service ASTM A515/A515M sp...
Square Or Rectangular Tube
Square Or Rectangular Tube A Hollow Structural Section, or HSS, is a type of metal with a hollow tubular section. These sections can be circular (CHS), square (SHS) or 2x3 re...
Channel Bar
Channel Bar Channel steel is a long steel section with grooved section. It belongs to carbon structural steel for construction and machinery. It is a section s...
Steel Plate
Steel Plate Carbon Steel, main point is that the mass fraction of carbon is less than 2.11% and does not contain the alloy elements and are specially added. Lo...
ASTM A572 / ASME SA572
ASTM A572 / ASME SA572 ASTM A572/A572M Standard Specification for High-Strength Low-Alloy Columbium-Vanadium Structural Steel ASTM A572/A572M Specification covers the st...
Все товары поставщика

Похожие товары

Котельная труба из легкого сплава высокого давления
Котельная труба из легкого сплава высокого давления Продавец: ООО «Тяньцзинь Санон Интернэшнл Ко» Толщина: SCH10S, SCH40S, SCH80S, SCH160S (1мм ~ 60мм) или по требованию клиентовНаружный диаметр:...
ASTM A387 / ASME SA387
ASTM A387 / ASME SA387 Продавец: Henan Steel Guang International Trade Co., lTD. ASTM A387/A387M Standard Specification for Pressure Vessel Plates, Alloy Steel, Chromium-Molybden...
ASTM A302 / ASME SA302
ASTM A302 / ASME SA302 Продавец: Henan Steel Guang International Trade Co., lTD. ASTM A302/A302M Standard Specification for Pressure Vessel Plates, Alloy Steel, Manganese-Molybde...
ASTM A299 / ASME SA299
ASTM A299 / ASME SA299 Продавец: Henan Steel Guang International Trade Co., lTD. ASTM A299 / ASME SA299 ASTM A299/A299M specification for Pressure Vessel plates, carbon steel, m...
ASTM A204 / ASME SA204
ASTM A204 / ASME SA204 Продавец: Henan Steel Guang International Trade Co., lTD. ASTM A204/A204M Specification FOR PRESSURE VESSEL PLATES, ALLOY STEEL, MOLYBDENUM ASME SA204is a ...