Cold Drawn Round Bar is a precision steel bar produced through the cold drawing process to achieve high dimensional accuracy and improved surface finish. It is widely used in mechanical components, automotive parts, industrial equipment, and precision engineering applications.
Material Type :
Cold Drawn Carbon Steel / Alloy SteelDiameter Range :
3.0mm – 100mmCustomizable :
YesOrder(MOQ) :
2TSpecifications
Cold Drawn Round Bars are produced through cold drawing methods to achieve a high surface finish, superior mechanical properties, and tight tolerances. They are suitable for applications requiring high strength, fatigue resistance, and excellent machining characteristics.
Made of carbon or alloy steel with diameters ranging from 5mm to 120mm and lengths from 1m to 6m, the bright polished surface allows for precise machining, threading, or subsequent heat treatment.
These round bars are widely used in shafts, axles, pins, bolts, screws, fasteners, precision mechanical parts, and automotive or industrial equipment components, providing durability, reliable performance, and excellent finishing quality for critical applications.
Cold Drawn Round Bar is one of our core strength products. We maintain substantial inventory to ensure rapid delivery and can also customize extra-large diameter seamless pipes according to your specific requirements. Additionally, we provide comprehensive services including spectroscopic analysis, mechanical property testing, pressure testing, and non-destructive testing (NDT).
| Grade | Grade Equivalent | Mechanical Properties | Size Range | Chemical Composition (Typical, %) |
|---|---|---|---|---|
| 10# | AISI 1010 / EN 1.0301 | Tensile ≥335 MPa
|
Diameter 3–100 mm
|
C 0.07–0.14
|
| 20# | AISI 1020 / EN 1.0402 | Tensile ≥390 MPa
|
Diameter 3–100 mm
|
C 0.17–0.24
|
| 45# | AISI 1045 / EN 1.0503 | Tensile ≥600 MPa
|
Diameter 3–100 mm
|
C 0.42–0.50
|
| Q235B | EN S235JR / A36 | Tensile 375–500 MPa
|
Diameter 3–100 mm
|
C≤0.22
|
| Q355B | EN S355JR / 16Mn | Tensile 470–630 MPa
|
Diameter 3–100 mm
|
C≤0.20
|
| 40Cr | AISI 5140 / EN 1.7035 | Tensile ≥980 MPa
|
Diameter 3–100 mm
|
C 0.37–0.45
|
| 42CrMo | AISI 4140 / EN 1.7225 | Tensile ≥1080 MPa
|
Diameter 3–100 mm
|
C 0.38–0.45
|
| 304 | UNS S30400 / EN 1.4301 | Tensile ≥515 MPa
|
Diameter 3–100 mm
|
C≤0.08, Cr 18.0–20.0
|
| 316L | UNS S31603 / EN 1.4404 | Tensile ≥485 MPa
|
Diameter 3–100 mm
|
C≤0.03, Cr 16.0–18.5
|
|
Note: If you do not find a Cold Drawn Round Bar that meets your requirements or is suitable for your customer’s project, please contact our manager sales consultant (Email: stsalesman4@stmetal001.com) and send us your specifications and technical parameter files to obtain Customized quotation plan. |
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FAQs
Q: What types and standards of carbon steel do you mainly supply?
A: We mainly supply a wide range of carbon steel products including seamless and welded steel pipes, steel plates, coils, and bars. Common carbon steel grades include A36, A106, A53, API 5L, and S355, which are widely used in construction, machinery, and pipeline engineering. All carbon steel products comply with international standards such as ASTM, API, EN, and JIS. We can also provide corresponding material test certificates (MTC) and support customized specifications according to customer project requirements.
Q: Can you provide special specifications or non-standard customization? For example, extra-wide plates or pipes with specific wall thicknesses?
A: Of course. One of our advantages is our flexible customization capabilities. We can provide customized size cutting, special thicknesses, and special surface treatments (such as 2B, BA, No.4 brushed finish, mirror finish) based on your drawings or requirements. Whether it's a small trial order or a large-volume purchase, we can meet your needs.
Q: How do you guarantee the quality and consistency of materials? Do you have quality certifications?
A: Quality is our lifeline. We use direct supply from large steel mills to ensure material traceability. Each shipment comes with a Material Quality Certificate (MTC). We have our own quality control team that conducts random checks on material composition, dimensional tolerances, surface finish, and mechanical properties. Our factory is also ISO 9001:2015 quality management system certified.
Q: What are your delivery times and logistics solutions for overseas customers?
A: For standard-specification in-stock products, we can complete preparation and shipment within 7-14 days. Delivery times for customized products will be determined through negotiation based on the specific process. We have established international logistics partners who can arrange full container load (FCL), less-than-container load (LCL), or air freight according to your needs, and provide various trade terms such as EXW, FOB, CIF, and DDP, with door-to-door service.
Q: As a new customer, how do I begin cooperation? Can you provide samples for testing?
A: The cooperation process is very smooth: 1) You provide specific requirements (brand, specifications, quantity, standards); 2) We provide a quotation and technical advice; 3) After confirmation, we arrange the contract and payment; 4) Production/pickup and quality inspection; 5) Shipment and provision of documentation. We encourage sample testing. For serious customers, we can provide small-size samples to ensure that the materials fully meet your processing and application requirements.
|
Note: If you do not find a Cold Drawn Round Bar that meets your requirements or is suitable for your customer’s project, please contact our manager sales consultant (Email: stsalesman4@stmetal001.com) and send us your specifications and technical parameter files to obtain Customized quotation plan. |
Cold Drawn Round Bar is a precision steel bar produced through the cold drawing process to achieve high dimensional accuracy and improved surface finish. It is widely used in mechanical components, automotive parts, industrial equipment, and precision engineering applications.
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