SAE 1020 S20c Ss440 A36 Q235 1045 S45c C45 4140 Scm440 40cr B7 42CrMo4 12L14 1215 Cold Drawn Bright Steel Round Bar Steel Bar

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SAE 1020 S20c Ss440 A36 Q235 1045 S45c C45 4140 Scm440 40cr B7 42CrMo4 12L14 1215 Cold Drawn Bright Steel Round Bar Steel Bar

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Product Description

Basic Specifications

Model NO.

Cold Drawn Steel Round Bar Steel Bar

Technique

Cold Drawn

Application

Structural Steel Bar, Tool Steel Bar, Die Steel Bar

Surface Treatment

Polished

Alloy

Non-alloy

Special Use

Mold Steel, Free Cutting Steel, Cold Heading Steel

Straightness

Max 0.8mm/M

MOQ

1ton Per Size

Packing

Anti-Rust Packing

Tolerance

H8 H9 10 H11

Steel Type

Round, Square, Hexgonal, Special Profile

Surface

Bright

Origin

China

Capacity

3000tons/Month

Product Description

SAE 1020 S20c Ss440 A36 Q235 1045 S45c C45 4140 En19 Scm440 40cr B7 42CrMo4 12L14 1215 1144 Cold Drawn Steel Round Bar Steel Bar

Cold drawn steel bar is made from special quality hot rolled steel bar. It is drawn through a die reducing the cross-sectional area of the bar and giving it a smooth surface.

Shapes: According to the shapes of the die, the finished product can get a round, hexagonal, square, flat and other cross section.
Advantage: Cold drawn bars have greater size accuracy, straightness and increased tensile and yield strength as well as improved machinability.
Further processing: In addition to standard cold drawn steel bars. It can also be polished or ground to get better surface.

Processing & Application

Processing Line
Hot rolled bars/wire rods - (spheroidizing annealed for alloy steel/bearing steel) - pickling - cleaning - saponifing - cold drawn - (softening annealed for alloy steel/bearing steel) - cutting - bundling - packing - finished products

Main Applications
Hardware tools, auto parts, standard parts, fasteners common shaft, machinery manufacturing, light industry, hardware, bicycles, cars, motorcycles, textile machinery, transformers and other machinery industry.

Factory Capabilities

Shapes	Sizes	Processing
Steel Round Bar	5mm to 63.5mm	Cold Drawn
Steel Round Bar	63.5mm-120mm	Smooth-turned and polished
Steel Square Bar	55mm to 120120mm	Cold Drawn
Steel Hex Bar	5mm to 120mm	Cold Drawn
Steel Hexagonal Bar	5mm to 120mm (side to side)	Cold Drawn

Dimensional Tolerances (mm)

Nominal Size	h8	h9	h10	h11
1 to 3	-0.014	-0.025	-0.04	-0.06
Over 3 to 6	-0.018	-0.03	-0.048	-0.075
Over 6 to 10	-0.022	-0.036	-0.058	-0.09
Over 10 to 18	-0.027	-0.043	-0.07	-0.11
Over 18 to 30	-0.033	-0.052	-0.084	-0.13
Over 30 to 50	-0.039	-0.062	-0.1	-0.16
Over 50 to 80	-0.046	-0.074	-0.12	-0.19
Over 80 to 120	-0.054	-0.087	-0.14	-0.22

Main Steel Grades

Category	Grades
Carbon Steel	SAE 1018, A36, SS400, S235JR, Q235, SAE 1020, S20C, SAE 1045, S45C, C45, EN8
Alloy Steel	SAE 5120, 20Cr, SAE 5140, 40Cr, SAE 4130, SCM430, SAE 4140, 42CrMo4, EN19, SCM440, SAE 4340
Free Cutting Steel	SAE 1215, 12L14, SUM22, SUM23, 230M07, 1.0715, 11SMn30, SUM43, 1144

Key Advantages

Precision: Tighter tolerances reduce machining losses.
Surface Quality: Smooth finish reduces the need for surface machining.
Straightness: Facilitates automatic bar feeding in CNC machines.
Properties: Enhanced mechanical properties can reduce the need for extra hardening.
Productivity: Enables higher machining speeds and longer tool life.

Packing & Terms

Bundle weight: Max 1000kgs.
Packing: Sea worthy packing with anti-rust protection.
Lifting: Each bundle fitted with two lifting belts for easy unloading.
Terms: Payment by TT/LC; Price terms: EXW, FOB, CFR, CIF, etc.
Delivery: 7 days for stock, within 30 days for new production.

Product Showcase

Frequently Asked Questions

Q1: What are the main benefits of using cold drawn steel bars?

Cold drawn steel bars offer superior dimensional accuracy, straightness, and a smooth bright surface. They also provide increased tensile and yield strength compared to hot rolled bars.

Q2: What shapes of cold drawn steel can be manufactured?

We can produce various cross-sections including round, square, hexagonal, and special profiles depending on the die used.

Q3: What are the available tolerance levels?

Our standard production covers tolerances such as h8, h9, h10, and h11, ensuring high precision for machinery and auto part applications.

Q4: What is the typical lead time for an order?

For items currently in stock, the delivery time is 7 days. For new production orders, it usually takes within 30 days.

Q5: How is the material protected during sea transport?

All bars are packed using sea-worthy, anti-rust packing. Each bundle is restricted to a maximum of 1000kg and equipped with lifting belts for safe handling.

Q6: Which industries commonly use these steel bars?

They are widely used in automotive parts, fasteners, machinery manufacturing, hardware tools, and the light industry due to their excellent machinability.