Contact Platform Support
Help CenterSteel Round Bar， Material Grades & International Standards Common Grades - Q195, Q235B, Q355B - S235JR, S355JR - 45# Carbon Steel, A36
Related Products
-
Steel Channel ，Material Grades & International Standards ，Common Grades - Q235B, Q355B - S235JR, S355JR - A36 Equivalent GradeNegotiableMOQ: 2 Metric Tons -
Silicon Steel - Non-oriented: 50WW470, 50WW600, 50WW800, 35WW300 - Grain-oriented: 30Q120, 30Q130, 27Q110, 23Q090NegotiableMOQ: 2 Metric Tons
-
Square Steel- Carbon Steel: Q235B / S235JR, Q355B / S355JR, 20#, 45# / 1045 / C45NegotiableMOQ: 2 Metric Tons
-
Steel Round Bar & Round Steel Bar，GB/T 702-2017、ASTM A36、EN 10060、GB/T 905、GB/T 3078、EN 10278NegotiableMOQ: 5 Metric Tons
-
Silicon Steel & Silicon Steel Coil，IEC 60404、ASTM A677、JIS C2552、DIN EN 10106NegotiableMOQ: 5 Metric Tons
Round Bar – Complete Product Detailed Description
1. Product Overview
Round bar, also known as solid round steel, is a solid cylindrical steel product widely used in structural engineering, machinery manufacturing, construction and industrial processing. Manufactured by hot rolling, cold drawing and forging processes, our round bar features smooth surface, precise dimension tolerance, uniform internal structure, good toughness and excellent weldability.
As one of the most versatile carbon steel materials, hot rolled round bar is highly demanded in global markets including Africa, Central Asia, Southeast Asia and Europe. We supply full-size standard round bars with stable quality and fast export delivery.
2. Main Product Types
2.1 Hot Rolled Round Bar
Most common construction grade round steel, suitable for general structure, building framework, reinforcement and mechanical parts manufacturing. Good plasticity and stable mechanical performance.
2.2 Cold Drawn Round Bar
Higher dimensional accuracy, smoother surface and tighter tolerance. Widely used for precision machinery, bolts, shafts and high-precision industrial components.
2.3 Forged Round Bar
High density, high strength and internal defect-free structure, suitable for heavy machinery, pressure equipment and high-load industrial parts.
3. Material Grades & International Standards
Common Grades
- Q195, Q235B, Q355B
- S235JR, S355JR
- 45# Carbon Steel, A36
Executive Standards
- ASTM A36 / ASTM A108
- EN 10025
- JIS G3101
- GB/T 702
Full set of export documents can be provided: Mill Test Certificate, Quality Inspection Report, Batch Chemical Analysis and Customs Clearance Documents.
4. Technical Specifications
Diameter Range
10mm – 300mm (full sizes in stock)
Standard Length
- 5.8m / 6m / 12m
- Custom cutting length available
Physical Features
- Straight bar body, no bending
- Smooth surface, no cracks, no scar defects
- Stable tensile strength and yield strength
- Good cutting, welding and machining performance
5. Core Product Advantages
1. Stable Mechanical Performance
Uniform chemical composition and reliable physical indexes, fully compliant with international engineering standards.
2. High Dimension Accuracy
Strict tolerance control ensures easy cutting, machining and assembly for construction and mechanical processing.
3. Excellent Processability
Easy to weld, bend, cut, forge and machine, suitable for multiple industrial manufacturing processes.
4. Complete Sizes & Adequate Stock
Full specifications available, supporting small trial orders and large bulk export orders.
6. Wide Application Fields
- Building structural engineering and construction reinforcement
- Mechanical equipment manufacturing, shaft parts and base components
- Bolt, nut and fastener production
- Automotive, petroleum and machinery processing industry
- Steel structure brackets, supports and connecting parts
- Agricultural machinery and municipal engineering facilities
7. Export Packaging & Logistics
- Packing: Standard seaworthy bundle packing with steel strips and waterproof protection
- Loading Port: Qingdao Port
- Container: 20GP / 40GP full container loading
- Delivery Cycle: 5–7 working days for spot goods
- Support customized cutting, mixed loading and long-term contract orders
8. Quality & After-Sales Service
All round bars are strictly inspected for surface quality, dimension tolerance and mechanical properties before shipment. We guarantee zero surface defects and stable batch quality.
We provide professional foreign trade service, technical parameter guidance and full after-sales support for global buyers.
Send Inquiry to This Supplier
You May Also Like
-
Steel Billet & Square Billet，Q195、Q235B、Q275、3SP/5SP、SS400、S235JR、10#、20#、35#、45#、50#、65Mn、S45C、Q355B/C/D、16Mn、20MnSi、S355JRNegotiableMOQ: 5 Metric Tons
-
Steel Pipe & Tube & Rectangular Tube，S235JR、S355JR（EN10219）、ASTM A500 Gr.B/C、A53 Grade B、SS400、STK400、STKR490、ST37、ST52NegotiableMOQ: 5 Metric Tons
-
Steel Channel & Hot Rolled Channel，ASTM A36、EN S235JR/S355JR、JIS G3101NegotiableMOQ: 5 Metric Tons
-
Steel Wire Rope & Steel Strand， ASTM A416、EN 10138、ISO6934-4NegotiableMOQ: 5 Metric Tons
-
Silicon Steel，Grade: 50W470, 50W600, 50W800, 30Q120, 30Q130,NegotiableMOQ: 5 Metric Tons
-
Silicon Steel， Grade: 50W470, 50W600, 50W800, 30Q120, 30Q130,NegotiableMOQ: 5 Metric Tons
-
Steel Billet，Main Materials Q195, Q235B, Q355B, 20#, 45#, SS400, A36, S235JR,NegotiableMOQ: 1 Metric Ton
-
Steel Billet，Main Materials Q195, Q235B, Q355B, 20#, 45#, SS400, A36, S235JR,NegotiableMOQ: 1 Metric Ton
-
Steel Round Bar/Steel Bar， Q235B, Q355B, 10#, 20#, 35#, 45#, 20Cr, 40Cr, 20CrMo, 42CrMo,NegotiableMOQ: 5 Metric Tons
-
Steel Round Bar， Q235B, Q355B, 10#, 20#, 35#, 45#, 20Cr, 40Cr, 20CrMo, 42CrMo,NegotiableMOQ: 5 Metric Tons
