Cold Drawn Flat Bars
AMBICA IS ONE OF THE LARGEST PRODUCER OF COLD FINISHED BARS IN INDIA
Drawing is a metal working process in which metal is drawn through a die to reduce its diameter and increase its length, it stretches thinner, into a desired shape and thickness. It uses tensile forces to stretch metal.
Drawing is usually done at room temperature, thus classified as a cold working process. It also alters the mechanical properties of the metal.
Cold drawn cross-sections are more precise and have a better surface finish than hot extruded parts. Cold Drawn Flat Bars are an important product of this process, offering superior dimensional accuracy and enhanced mechanical strength.
The cold drawing process for steel bars and wire-
Coating: The surface of the bar or coil is coated with a drawing lubricant to produce cold drawing.
Pointing: The end of the workpiece is reduced or pointed by extruding so that it can pass freely through the die. The pointing end is then placed in grips and the rest of the workpiece is pulled through the die.
Cold Drawing: The process in which the pointed end of the bar or coil is passed through the die where it enters a gripping device of the drawing machine. The drawing machine draws the remaining unreduced section of the bar through the die. The die reduces the cross sectional area of the original bar increases the length of the original product and shapes the profile of the product.
Finished Product: The final product being drawn is at room temperature, i.e., cold drawn, which exhibits a bright and polished finish, improved machining characteristics, increased mechanical properties, precise and uniform dimensional tolerances. Products like Cold Drawn Flat Bars are notable examples of this superior finish and precision.
Multi-Pass Drawing: In order to produce the desired shape and tolerances, the cold drawing of complex shapes may require that each bar/coil be drawn several times. This process is called multi-pass drawing and involves drawing through smaller and smaller die openings. The material is generally annealed between each pass while drawing to remove cold work and to increase ductility.
Annealing: It is a heat treatment process generally used to soften the material being drawn, to remove internal stresses in the product or modify the mechanical properties, its microstructure, and the machining characteristics of the steel.Annealing may be used before, during i.e between passes or after the cold drawing operation, depending on the desired characteristics of the finished product & material requirements.
| Specification | Details |
| Product | Cold Drawn Stainless Steel Flat Bars |
| Process | Cold Drawn (Cold Finished) |
| Size Range | Width: 40 mm – 100 mm Thickness: 4.76 mm – 25.4 mm |
| Length | 2 m – 6 m (special cut-to-length available) |
| Length Tolerance | –0/+10 mm |
| Dimensional Tolerance | h11 and ASTM A484 |
| Surface Finish | Cold Drawn & Belt Polished Condition |
| Heat Treatment | Solution Annealed |
| Grades Available | AISI: 303, 304L, 316L, 316Ti, 321 DIN: 1.4305, 1.4307, 1.4404, 1.4571, 1.4541 (Ambica Steels) |
- High Precision & Close Tolerance: Cold drawing achieves uniform dimensions and tight tolerances compared to hot rolled bars.
- Superior Surface Finish: Smooth and polished surface reduces the need for additional machining.
- Enhanced Mechanical Properties: Cold working improves strength, straightness and overall performance.
- Good Machinability: Ideal for cutting, drilling and fabrication.
- Excellent Corrosion Resistance: Offers reliable performance in corrosive and outdoor environments.
- Structural support elements in commercial and residential construction
- Frames, braces and reinforcement sections
- Precision engineering components for machinery and tools
- Industrial fabrication works
- Decorative architectural elements
- Components in marine and offshore applications
- Supports and parts in power plants and heavy engineering
- Manufactured to international dimensional and quality standards.
- Available in multiple sizes, thicknesses and grades for varied industrial needs.
- Excellent performance in corrosive and demanding environments.
- Smooth finish ready for further fabrication or direct use.
1. What are Cold Drawn Stainless Steel Flat Bars?
Cold Drawn Stainless Steel Flat Bars are flat-shaped stainless steel bars manufactured using the cold drawing process to achieve high dimensional accuracy, smooth surface finish, and improved mechanical strength.
2. What size range is available for cold drawn flat bars?
Cold drawn flat bars are available in widths from 40 mm to 100 mm and thicknesses from 4 mm to 25 mm. Custom sizes can be supplied on request.
3. What is the standard length of Cold Drawn Flat Bars?
The standard length ranges from 2 meters to 6 meters. Cut-to-length options are available as per customer requirement.
4. What surface finish is provided on cold drawn flat bars?
These flat bars are supplied in cold drawn and belt polished finish, offering a smooth and clean surface suitable for precision applications.
5. Are Cold Drawn Stainless Steel Flat Bars solution annealed?
Yes, Cold Drawn Stainless Steel Flat Bars are solution annealed, which improves corrosion resistance, machinability, and overall performance.
6. What are the typical applications of Cold Drawn Stainless Steel Flat Bars?
They are widely used in structural supports, precision engineering components, machinery parts, industrial fabrication, architectural applications, and heavy
7. Are cold drawn flat bars suitable for precision applications?
Yes, due to their accurate dimensions and smooth surface finish, cold drawn flat bars are ideal for precision engineering and machining applications.
8. Can Cold Drawn Stainless Steel Flat Bars be used in outdoor environments?
Yes, stainless steel cold drawn flat bars perform well in outdoor and exposed environments due to their corrosion-resistant properties.
9. Which grade is best for corrosive environments?
316L stainless steel cold drawn flat bars are recommended for corrosive, marine, and chemical environments due to their higher corrosion resistance.
10. Do cold drawn flat bars require additional surface treatment?
No, cold drawn flat bars are supplied with a smooth finish and generally do not require additional surface treatment before use.
11. Are Cold Drawn Flat Bars straight and uniform?
Yes, the cold drawing process ensures excellent straightness, uniform thickness, and consistent width throughout the length.
12. Can cold drawn flat bars be welded easily?
Yes, cold drawn stainless steel flat bars offer good weldability using standard welding procedures.
13. Are Cold Drawn Flat Bars suitable for heavy-load applications?
Yes, cold drawn flat bars have enhanced mechanical strength, making them suitable for structural and load-bearing applications.
14. What industries commonly use Cold Drawn Stainless Steel Flat Bars?
Industries include construction, engineering, automotive, power plants, fabrication, marine, chemical, and architectural sectors.
15. Are inspection certificates provided with cold drawn flat bars?
Yes, mill test certificates (MTC) and quality inspection documents can be provided on request.
16. Are Cold Drawn Flat Bars available in bright finish?
Yes, cold drawn flat bars can be supplied in bright / belt-polished finish depending on size and grade.
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