Guide rail type steel-Wuxi Tianchen Cold drawn Steel Co., Ltd

Cold-drawn square steel, flat steel, and hexagonal steel

Shape	Specification (mm)	Roughness：Ra (μm)	Length (m)
Square Steel	4×4 - 90×90	≤1.6	2.5 - 8.0，Customizable
Flat Steel	3×8 - 10×120	≤1.6	2.5 - 8.0，Customizable
Hexagonal Steel	S6 - S75	≤1.6	2.5 - 8.0，Customizable
Remarks	Precision level, straightness, and other requirements can be customized according to demand.

Size (mm)	Grade 9 /h9	Grade 10 /h10	Grade 11 /h11
> 3 - 6	0, -0.030	0, -0.048	0, -0.075
> 6 - 10	0, -0.036	0, -0.058	0, -0.090
> 10 - 18	0, -0.043	0, -0.070	0, -0.110
> 18 - 30	0, -0.052	0, -0.084	0, -0.130
> 30 - 50	0, -0.062	0, -0.100	0, -0.160
> 50 - 80	0, -0.074	0, -0.120	0, -0.190