Carbon Steel Square Bar

 

Standard	ASTM, DIN, ISO, EN, JIS,AISI
Production Method	Hot Rolled
Material	Carbon Steel
Carbon Content	Low Carbon(0.08% to 0.13%)or as required
Surface	Acid cleaning, sandblasting, galvanizing, coating.
Edge	Mill Edge / Slit Edge
Section side length	6mm-100mm, or as required
Package	Standard Export Package

 

1.Chemical Composition

Grade	C	Si	Mn	P	S	Cr	Ni	B
1020	0.17 0.23	0.17 0.37	0.35 0.65	≤0.03	≤0.03	≤0.25	≤0.30	0.0008 0.0030
1045	0.42 0.50	0.17 0.37	0.50 0.80	≤0.03	≤0.03	≤0.25	≤0.30	0.0008 0.0030

 

2.Physical Property

	1020	1045
Hardness	156HB	229HB
Tensile strength	410MPA	600MPA
Yield strength	245MPA	355MPA
Elogation	25%	16%
Reduction of area	55%	40%
AKV(impact value)	54J	39J

 

3.Size Tolerance:

Length tolerance: +100mm/-0mm

Side length tolerance: +/-2mm

Straightness:Max 6mm/m

 

4.Quality Condation

Both end of each bar must be cut.

Ladle furnanced and vacuum de-gassed

Show heat No. on each bar

Cold Drawn Carbon Steel Square Bar is manufactured through a cold drawing process to achieve improved dimensional accuracy and surface finish. The product features stable mechanical properties, high strength, and consistent cross-sectional dimensions. It is widely used in machinery manufacturing, construction structures, metal fabrication, and automotive component processing. The smooth surface reduces additional machining requirements and supports efficient downstream processing. Available in various grades and sizes, this square steel bar supports custom specifications and bulk supply. Suitable for distributors, fabricators, engineering contractors, and industrial manufacturers requiring precision structural steel materials.

Specifications
Product Name	Cold Drawn Carbon Steel Square Bar
Category	Carbon Steel Bar
Material	Carbon Steel (Q235, Q345, 1045, etc.)
Size / Specification	5mm–100mm or Custom Size
Length	3m–12m or Custom Length
Surface	Bright / Black / Polished
Tolerance	Tight Tolerance Cold Drawn Standard
Application	Machinery Manufacturing, Construction, Metal Fabrication
Target User	Distributors, Fabricators, Contractors, Industrial Manufacturers
Packaging	Standard Export Bundle with Steel Strips or Wooden Case

 

 

 

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