Steel Bar Supplier
When you need steel round bar for machining, shafts, fasteners, components, fabrication or industrial distribution, you can send grade, diameter, length, surface condition, tolerance, quantity and destination details. Bao Steel (Qingdao) Co., Ltd. supplies carbon steel round bar from 16–800mm diameter and stainless steel round bar from 5.0–610mm diameter, with cutting, surface review, MTC documents, bundle packing and export shipment support.
Choose the Steel Bar Type You Need
Your quotation will be faster and more accurate when product type, grade, diameter, length, tolerance and surface condition are confirmed from the beginning. You can choose carbon steel round bar, stainless steel round bar, cold drawn bar, peeled bar, polished bar or cut-to-length bar supply according to your machining and production needs.
Carbon Steel Round Bar
You can source carbon steel round bar from 16–800mm diameter for shafts, pins, machinery parts, fasteners, tooling blanks and fabrication.
Stainless Steel Round Bar
You can request stainless steel round bar from 5.0–610mm diameter for corrosion-resistant shafts, components, fasteners, valves and machined parts.
Cold Drawn Steel Bar
You can choose cold drawn bar when your production needs better surface condition, tighter dimensional control and more stable machining preparation.
Peeled / Polished Steel Bar
You can select peeled, polished or bright bar when your order requires cleaner surface, machining readiness or improved appearance.
Steel Bar Selection by Material and Use
Different bar materials and surface conditions serve different downstream needs. You should match grade, diameter, surface and cutting requirement with your final machining, fabrication or component production plan.
Carbon Steel Round Bar
For shafts, pins, rollers, fasteners, tooling blanks, fabrication parts and general machinery components.
View Carbon Steel Bar →Stainless Steel Round Bar
For corrosion-resistant shafts, fittings, valves, food equipment parts, fasteners and machined components.
View Stainless Steel Bar →Cold Drawn Steel Bar
For buyers who need cleaner surface, improved dimensional control and more consistent machining behavior.
View Cold Drawn Bar →Cut-to-Length Steel Bar
For machining shops and component manufacturers that need fixed-length bar supply before production.
View Processing Support →Steel Bar Products We Supply
We supply carbon steel round bar and stainless steel round bar for importers, distributors, machining factories, fastener manufacturers, fabrication plants and industrial buyers who need grade confirmation, stable size, processing support, MTC documents and export packing.
Carbon Steel Round Bar
Carbon steel round bar is widely used for shafts, pins, machinery parts, fasteners, tooling blanks, fabrication and general industrial components.
- Diameter range: 16–800mm
- Common grades include Q235, Q355, 20#, 45#, C45, SAE1045, S45C and equivalent grades
- Hot rolled, forged, cold drawn, peeled or polished surface can be discussed by order
- MTC, heat number, bundle packing and export document support available
Stainless Steel Round Bar
Stainless steel round bar is selected for corrosion-resistant components, shafts, fasteners, valves, fittings, food equipment and industrial machining.
- Diameter range: 5.0–610mm
- Common grades include 201, 304, 304L, 316, 316L, 321, 310S, 420 and 430
- Black bar, bright bar, peeled bar, polished bar and cold drawn bar can be discussed
- Grade traceability, surface protection and export packing support available by order
Cold Drawn Steel Bar
Cold drawn steel bar is used when buyers need better surface condition, tighter size tolerance and more stable machining preparation.
- Available for selected carbon steel and stainless steel grades according to specification
- Suitable for machining, precision components, shafts and repeated production parts
- Diameter tolerance, straightness and surface condition should be confirmed before quotation
- Bundle protection and rust prevention should match storage and shipment conditions
Cut-to-Length Steel Bar
Cut-to-length steel bar helps machining factories and component buyers reduce handling time and improve production preparation.
- Fixed-length cutting can be discussed according to diameter, grade and quantity
- Suitable for shaft blanks, machined parts, fastener production and fabrication use
- Cut tolerance, end face requirement and packaging method should be confirmed
- Loading photos, shipping marks and bundle labels can be arranged by order
What You Should Confirm Before Steel Bar Quotation
Steel bar quotation should not be based only on product name. Grade, diameter, length, surface condition, tolerance, processing, quantity, packing and destination all affect price and supply feasibility.
Core Specification Details
- Product TypeCarbon steel round bar, stainless steel round bar, cold drawn bar, peeled bar or polished bar
- Diameter RangeCarbon steel round bar: 16–800mm; stainless steel round bar: 5.0–610mm
- GradeQ235, Q355, 45#, C45, SAE1045, S45C, 304, 316, 316L or buyer-specified grade
- LengthStandard length, fixed length, cut-to-length or buyer-specified length
- SurfaceHot rolled black surface, bright surface, peeled, polished, cold drawn or oiled surface
- QuantityTotal tons, number of pieces, bundle quantity or project schedule
Processing and Export Details
- ProcessingCutting, peeling, polishing, cold drawing, straightening, chamfering or marking
- ToleranceDiameter tolerance, length tolerance, straightness and end face requirement
- ApplicationShafts, fasteners, machined parts, machinery components, fabrication or industrial distribution
- PackingBundle packing, steel straps, anti-rust protection, labels, wooden case or shipping marks
- DocumentsMTC, heat number, packing list, commercial invoice, certificate of origin and inspection support
- DestinationDestination country or port, trade term and shipment schedule
Common Steel Bar Grades and Surface Conditions
Final grade and surface selection should follow machining method, mechanical requirement, corrosion environment, tolerance requirement and downstream production process.
Carbon Steel Grades
Q235, Q355, 20#, 45#, C45, SAE1045 and S45C are commonly requested for shafts, pins, machinery parts and general components.
Stainless Steel Grades
201, 304, 304L, 316, 316L, 321, 310S, 420 and 430 are commonly requested for corrosion-resistant and machined components.
Surface Condition
Hot rolled, black, bright, cold drawn, peeled, polished and oiled surfaces can be discussed according to application.
Tolerance Requirement
Diameter tolerance, length tolerance, straightness and end face requirement should be confirmed before quotation.
Cutting, Diameter Inspection, Bundle Packing and Export Loading
Processing accuracy, surface protection, bundle packing and loading condition directly affect warehouse receiving, machining preparation and final production schedule. You can confirm these details before shipment.
Steel Bar Cutting
You can request fixed-length cutting when your machining or fabrication process needs controlled bar length before production.
Diameter and Surface Check
You can confirm diameter, length, surface condition, straightness, material marking and document consistency before shipment.
Bundle Packing
You can request steel straps, anti-rust protection, bundle labels, wooden case or other packing methods according to destination needs.
Loading and Shipping Marks
You can review bundle marks, labels, loading photos, protective packaging and shipment preparation before delivery.
Common Applications of Steel Round Bar
Steel round bar is selected when buyers need material for machining, shafts, fasteners, components, tooling blanks, fabrication and industrial parts manufacturing.
Shaft Manufacturing
You can use steel round bar for drive shafts, pins, rollers, axles, machinery shafts and rotating components.
Machined Components
You can select carbon or stainless round bar for CNC machining, turned parts, fittings, bushings and couplings.
Fasteners and Hardware
You can use suitable steel bar grades for bolts, nuts, threaded rods, studs, anchors and general hardware production.
Fabrication and Tooling
You can choose round bar for tooling blanks, fixtures, supports, frames, repair parts and general steel fabrication.
Machining, Shaft and Component Supply Scenes
If your order is used for shafts, machining, fasteners or stainless steel components, application references help you confirm grade, diameter, surface condition and cutting requirement more clearly.
Machinery Shafts
You can choose steel round bar for shafts, rollers, pins, axles and mechanical components that require stable bar material.
Stainless Machined Parts
You can use stainless steel round bar for machined fittings, valves, corrosion-resistant parts and equipment components.
Fasteners and Components
You can select steel bar for bolts, threaded parts, hardware, tooling blanks and industrial component production.
Grade Review, Cutting, Packing and Export Support
Steel bar buyers usually need grade confirmation, diameter checking, surface review, fixed-length cutting, packing protection, MTC and shipping documents before final order.
Grade and Size Review
You can send material grade, diameter, length, tolerance, surface condition and final application for quotation review.
Cutting and Processing
You can discuss cut-to-length, peeling, polishing, cold drawing, straightening, chamfering and marking by order.
Document Support
You can request MTC, heat number, packing list, commercial invoice, certificate of origin and inspection report.
Export Packing
You can confirm bundle packing, anti-rust protection, steel straps, labels, shipping marks, wooden case and loading photos.
Common Questions from Steel Bar Buyers
What information should I send for a steel bar quotation?
You should send product type, grade, diameter, length, surface condition, tolerance, quantity, processing requirement, packing request and destination country or port.
What diameter range can you supply?
Carbon steel round bar can be supplied from 16–800mm diameter. Stainless steel round bar can be supplied from 5.0–610mm diameter. Final availability depends on grade, surface condition, quantity and order requirement.
Can you supply cut-to-length steel bars?
Yes. Cut-to-length processing can be discussed according to bar diameter, grade, quantity, cutting tolerance and final application.
What is the difference between hot rolled bar, cold drawn bar and peeled bar?
Hot rolled bar is commonly used for general applications. Cold drawn bar is selected for better tolerance and surface. Peeled or polished bar is used when buyers need cleaner surface and improved machining preparation.
Do you supply aluminum bar or copper bar on this page?
No. This steel bar page covers carbon steel round bar and stainless steel round bar. Aluminum bar and copper bar belong to the non-ferrous metals category.
Can you provide MTC and export packing?
Yes. MTC, heat number, packing list, commercial invoice, certificate of origin, inspection documents, bundle packing, shipping marks and loading photos can be discussed according to order requirements.
Related Steel Product Pages
Steel bar buyers may also need steel plate, steel coil, steel pipe, rebar, structural steel, quality control and export packing support.
Carbon Steel Round Bar
Carbon steel round bar for shafts, machinery parts, fasteners, tooling blanks and fabrication.
View Carbon Steel Round Bar →Stainless Steel Round Bar
Stainless steel round bar for corrosion-resistant components, fasteners, valves and machined parts.
View Stainless Steel Round Bar →Steel Pipe
Carbon steel pipe, galvanized pipe, stainless pipe and ductile iron pipe supply.
View Steel Pipe →Steel Plate
Carbon steel plate, stainless steel plate, galvanized sheet, galvalume sheet and roofing sheet.
View Steel Plate →Steel Coil
Carbon steel coil, galvanized coil, stainless coil, PPGI, PPGL and galvalume coil.
View Steel Coil →Steel Rebar
Rebar, reinforcing bar and welded reinforcing mesh for construction and concrete reinforcement.
View Steel Rebar →Quality Control
MTC review, heat number traceability, dimension check, surface inspection and third-party inspection.
View Quality Control →Packing & Shipping
Export bundle packing, protective packaging, shipping marks, loading photos and shipment support.
View Packing & Shipping →Send Your Steel Bar Inquiry
Send steel bar type, grade, diameter, length, surface condition, tolerance, quantity, processing requirement, packing request and destination details. We will check availability, processing feasibility, documents and quotation details.
Direct Contact
For Faster Quotation, Please Include
- ✓Product type: carbon steel round bar, stainless steel round bar, cold drawn bar or polished bar.
- ✓Grade, diameter, length, tolerance, surface condition and required quantity.
- ✓Processing requirement: cutting, peeling, polishing, straightening, chamfering or marking.
- ✓Destination country or port, packing request, MTC requirement and shipment schedule.
Document Support
- MTC
- Heat number
- Packing list
- Commercial invoice
- Certificate of origin
- Inspection report
- Loading photos
- Shipping marks
Steel Inquiry Form
Send this form for carbon steel round bar, stainless steel round bar, cut-to-length steel bar and other steel product inquiries.
