Carbon Steel Round Bar is a solid round steel product supplied for machining, fabrication, construction, shafts, pins, fasteners, and general engineering applications. CXYS supplies carbon steel round bars in a range of diameters, grades, and delivery conditions for international buyers.
Our range covers commonly requested grades including ASTM A36, AISI 1020, AISI 1045, S45C, Q235B, Q355B, and C45, subject to size and order availability.
Carbon Steel Round Bar Supplier
CXYS supplies Carbon Steel Round Bar for steel distributors, stockists, machining companies, fabricators, and project buyers.
Orders can be arranged according to the required:
- Steel grade
- Diameter
- Length
- Surface condition
- Quantity
- Processing requirements
- Destination port
Both standard stock requirements and larger project orders can be reviewed. Send your size and grade list to check current supply options.
Carbon Steel Round Bar Grades
The following are commonly requested grades within our Carbon Steel Round Bar supply range:
| Grade | Standard / Reference | Typical Use |
|---|---|---|
| ASTM A36 | ASTM A36 | General fabrication and structural parts |
| AISI 1020 | ASTM / SAE reference | Machined components and general engineering |
| AISI 1045 | ASTM / SAE reference | Shafts, pins and mechanical parts |
| C45 | EN 10083 / related references | General engineering and machine components |
| S45C | JIS G4051 | Shafts and machined components |
| Q235B | GB/T 700 | General fabrication and construction |
| Q355B | GB/T 1591 | Higher-strength structural components |
Grade and standard should be confirmed with the buyer’s technical specification before order placement.
Carbon Steel Round Bar Sizes
Round Bar is normally specified by its outside diameter and length. CXYS supplies a broad range of commonly traded diameters, with availability depending on the selected grade and order quantity.
Typical inquiry information includes:
- Diameter
- Steel grade
- Standard
- Length
- Quantity
- Delivery condition
Standard bar lengths can be supplied where available, while cut-to-length Round Bar can be arranged for specific requirements.
For quotation, buyers can simply provide a list such as:
Diameter × Length + Grade + Quantity
Round Bar Surface & Delivery Condition
Carbon Steel Round Bar can be supplied in different surface and delivery conditions depending on the grade, size, and application.
Common options include:
- Hot Rolled
- Cold Drawn
- Peeled
- Ground
- Bright Bar
For general construction and fabrication, hot rolled round bar is commonly used. Machining applications may require a more controlled dimensional or surface condition.
The required condition should be specified when requesting a quotation.
Carbon Steel Round Bar Processing
CXYS can arrange basic processing according to the purchasing requirement.
Available options may include:
- Cut-to-length
- Straightening
- Chamfering
- Surface processing
- Basic machining coordination
- Bundling and marking
For processed orders, buyers can provide drawings or dimensional requirements for review before quotation.
Carbon Steel Round Bar Applications
Carbon Steel Round Bar is used across construction, fabrication, machinery, and general engineering.
Common applications include:
- Shafts and axles
- Pins and rods
- Machine components
- Fastener production
- Structural fabrication
- Agricultural machinery parts
- Equipment components
- General machining
- Construction and repair work
The appropriate grade and delivery condition depend on the required strength, machinability, dimensional tolerance, and end use.
Carbon Steel Round Bar for Export
CXYS supplies Carbon Steel Round Bar for overseas distributors and industrial buyers. Bars are bundled according to size, grade, and shipment requirements for easier handling and identification.
Export orders can be arranged with:
- Steel strip or wire bundling
- Grade and size marking
- Protective packing where required
- Container loading
- Breakbulk shipment
- Bulk shipment for larger quantities
Shipping arrangements are reviewed based on total weight, bar length, order volume, and destination port.
Quality & Documentation
Quality documentation can be supplied according to the agreed purchase specification.
Depending on the order, documentation may include:
- Mill Test Certificate (MTC)
- Chemical composition
- Mechanical test results
- Dimensional inspection
- Packing list
- Commercial invoice
- Shipping documents
EN 10204 3.1 documentation can be discussed when required by the buyer.
Common Carbon Steel Round Bar Grades
ASTM A36 Round Bar
ASTM A36 Round Bar is commonly used for general fabrication, structural components, supports, and other applications where a general-purpose carbon steel grade is specified.
AISI 1020 Round Bar
AISI 1020 is commonly selected for machining, fabricated components, shafts, and general engineering applications.
AISI 1045 Round Bar
AISI 1045 is a medium-carbon steel commonly purchased for shafts, pins, gears, machine components, and other parts requiring higher strength than low-carbon grades.
C45 Round Bar
C45 is widely used for general mechanical and engineering components, including shafts, axles, pins, and fabricated machine parts.
S45C Round Bar
S45C is a commonly specified JIS carbon steel grade for shafts, machine components, pins, and other engineering applications.
Q235B & Q355B Round Bar
Q235B and Q355B are commonly encountered Chinese-standard carbon structural grades used for fabrication, construction, and structural components.
These grades are included to cover common Carbon Steel Round Bar purchasing requirements. Individual grades can be developed into dedicated product pages when they have sufficient independent search demand.
Carbon Steel Round Bar FAQ
What grades of Carbon Steel Round Bar do you supply?
Common grades include ASTM A36, AISI 1020, AISI 1045, C45, S45C, Q235B, and Q355B. Other grades can be reviewed according to the required standard.
What sizes are available?
We supply a range of commonly traded diameters. Availability depends on the selected grade, diameter, length, and quantity.
Can Carbon Steel Round Bar be cut to length?
Yes. Cut-to-length supply can be arranged according to the required dimensions and quantity.
What surface conditions are available?
Depending on the grade and size, options may include hot rolled, cold drawn, peeled, ground, and bright bar conditions.
Can I order different grades or sizes together?
Yes. Mixed-size or mixed-grade requirements can be submitted as one inquiry for supply and shipment review.
What information is needed for a quotation?
Please provide the diameter, grade, standard, length, quantity, and destination port. Surface or processing requirements should also be included if applicable.
Request a Carbon Steel Round Bar Quotation
Send your Round Bar diameter, grade, length, quantity, and destination. CXYS will check the suitable supply option and provide an export quotation based on your requirements.