Special Steel Strip Business Division

Introduction

Foundation: 1979
Location: Longtan Plant
Major equipment: Germany's SUNDWIG 4Hi/2Hi reversible cold rolling mill, Austria's EBNER bell-type annealing furnace, Germany METEX grinder and USA STAMCO slitters.

Business description

Material scope :

Low-carbon steel SPCC/SPCD/SPCE/SPCF/SAE1006~SAE1022
Medium and high carbon steel S35C/S45C/S50C/S55C/S60C/SAE1035~SAE1060
Tool steel SK65(SK7)/SK85(SK5)/SK95(SK4)/SK120(SK2)/NKS56/ SAE1065~SAE1095
Alloy tool steel Spring steel/SCM415/SCM435/SCM440/SKS51/SUP6/ SUP10/SAE4130/ SAE4135/SAE4140/SAE8660
Stainless steel SUS301/SUS304/SUS430
Phosphor bronze C5191 /Copper C1100

Product specifications Cold rolled：

SPCC / S35C / S50C / S65C / SK85 / SK95 / SAE1035 / SAE1050 / SAE1070 / SAE1095 , etc.

Cold Roll	Customized product thickness tolerance		JIS G3311 thickness tolerance
	Customized product thickness tolerance		JIS G3311 thickness tolerance
	W < 200mm	200mm < W < 600mm	W < 200mm	200mm < W < 600mm
0.1	±0.004	±0.004	±0.008	─
0.10 - 0.15	±0.005	±0.005	±0.010	─
0.15 - 0.25	±0.008	±0.010	±0.015	±0.020
0.25 - 0.40	±0.010	±0.013	±0.020	±0.025
0.40 - 0.60	±0.013	±0.015	±0.025	±0.030
0.60 - 0.80	±0.015	±0.020	±0.030	±0.040
0.80 - 1.00	±0.020	±0.025	±0.030	±0.040
1.00 - 1.25	±0.020	±0.025	±0.040	±0.050
1.25 - 1.60	±0.025	±0.030	±0.050	±0.060
1.60 - 2.00	±0.028	±0.035	±0.055	±0.070
2.00 - 2.50	±0.033	±0.040	±0.065	±0.080
2.50 - 3.00	±0.033	±0.040	±0.065	±0.080
3.00 - 3.50	±0.040	±0.045	±0.080	±0.090
3.50 - 4.00	±0.040	±0.045	±0.080	±0.090
4.00 - 4.50	±0.043	±0.048	±0.085	±0.095
4.50 - 5.00	±0.045	±0.048	±0.085	±0.095

The thickness measurement position should be more than 15mm from the edge.
If there are other customized thickness tolerances, please contact the sales.
Chunyuan Steel Special Steel Strip Division also provides annealing, rolling and other services, and can produce medium and high carbon steel products according to customer needs.
Chunyuan Steel Special Steel Strip Division also provides materials other than JIS standard grades, such as: SAE1050, SAE1065, etc. Please contact the business window personnel.
When providing standard grade materials such as SAE, if there is no special thickness tolerance specified, this thickness tolerance table will be used as the basis.

Product specifications Hot rolled：

SPHC / S45C / S50C

Hot Roll	Customized product thickness tolerance		JIS G3311 thickness tolerance
	Customized product thickness tolerance		JIS G3311 thickness tolerance
	W < 630mm	630mm < W < 1000mm	W < 630mm	630mm < W < 1000mm
< 1.0	±0.05	±0.05	±0.06	±0.06
1.00 - 1.25	±0.06	±0.06	±0.07	±0.07
1.25 - 1.60	±0.07	±0.08	±0.08	±0.09
1.60 - 2.00	±0.09	±0.10	±0.10	±0.11
2.00 - 2.50	±0.11	±0.12	±0.12	±0.13
2.50 - 3.15	±0.12	±0.14	±0.14	±0.15
> 3.15	±0.13	±0.16	±0.16	±0.17

The thickness measurement position should be more than 15mm from the edge.
If there are other customized thickness tolerances, please contact the sales.
Chunyuan Steel Special Steel Strip Division also provides annealing, rolling and other services, and can produce medium and high carbon steel products according to customer needs.
Chunyuan Steel Special Steel Strip Division also provides materials other than JIS standard grades, such as: SAE1050, SAE1065, etc. Please contact the business window personnel.
When providing standard grade materials such as SAE, if there is no special thickness tolerance specified, this thickness tolerance table will be used as the basis.

Service Industry•Applicable materials

Special Steel Strip Business Division

Transportation (automotive and motorcycle components, safety tongues, etc.): S50C, S55C, S65C, etc.
Industrial hardware (washers, various fasteners): S35C, S50C, S65C, SK85, SK95, SKS51, and SAE1050, SAE1065, etc.
Electrical equipment (relays, wire strippers, etc.): S35C, S50C, S65C, SK85, SK95, etc.
Stationery supplies (utility knife, pen clip, tape measure, etc.): SPCC, S35C, S50C, S65C, SK85, SK95, etc., and SAE1050, SAE1065, etc.