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steel strapping

Product Detail Information
STEEL STRAPPING


Features



Base metal
The quality of a steel strapping is entirely dependent upon its base metal.
Hwachang uses best materials which are manufactured suitable for its individual applications.

Edge finish
All the burr at edge is completely removed to protect workers from being injured.

Bow and Camber
Hwachang steel strapping has neither bow nor camber which assures perfect workability and easy packing operation.

Size
Precise thickness and widht are available through high level of quality control.

Hardness
Unevenness in hardness can not be found at any point.

Surface finish
Beautiful bluing finish which comes from fine fackilities and severe temperature control increases its corrosion resistance.



1. HWACHANG STEEL Specifications


Designations and Mechanical Properties

Designations

Tensile strengh (Kg/mm2 )

Elongation(%)

Usage

Remarks

HBH-1
HBH-2
HBH-3

56 up
70 up
60~80

0.5 up
2.0 up
5.0 up

Light Duty
Light Duty
-

FS Class 1. Regular Duty
KS SSP 5.

HBH-4
HBH-5

77 up
87 up

3.5 up
6.5 ~ 16

Regular Heavy Duty
High Tensile
FS Class 1. Heavy Duty


Thickness Tolerances                                     
                                                                                                                Unit : mm

Thickness

Tolerance

0.6 less

0.6 ~ 0.8

0.8 ~ 1.0

1.0 ~ 1.25

± 0.05
±0.06
±0.07
±0.08



Width Tolerance                    
                                                                                                                Unit : mm

±0.2


 

3. FEDERAL Specifications QQ-S-781H

Classification and Mechanical Properties

 Class

Type 

Tensile strength
(kg/mm2)

Elongation
(%) 

Number of 90°
(1/8'' Rad) Bends
 

 Class 1
(Flat strapping)

 Regular Duty
Heavy Duty

 56up
87up

 0.5 ~ 4.0
6.5 ~ 1.6

 3 ~ 12
3 ~ 12



Bend Requirement for Class 1 Strapping

Thickness in.(mm)

0.012(0.31)

0.015(0.38)

0.018(0.46)

0.020(0.51)

0.023(0.58)

0.025(0.63)

0.028(0.71)

0.031(0.79)

0.035(0.89)

0.044(1.12)

Number of Bends

12

12

10

8

6

6

5

5

5

3


Thickness Tolerances

                                                                                                                      Unit : in. (mm)

 Thickness

Tolerance 

0.023 (0.58) and under
over 0.023 (0.58),
0.050 (1.27) and under

±0.002 (0.051)
    ±0.003 (0.076)  
 



Width Tolerance (For Cold Rolled Strapping)

                                                                                                                      Unit : in. (mm)

 ±0.005 (0.127)



4. Standard Size

Thickness x Width
(mm) 

0.4 x 12.7 

0.5 x 16 

0.6 x 19 

0.7 x 19 

0.9 x 25.4 

1.0 x 32 

Weight per Coil
(Kg) 

 12 ~ 20

15 ~ 30 

20 ~ 35 

20 ~ 35 

30 ~ 50  

45 ~ 65 

Remark ; Other sizes are also available on request.

5. Coil Inner Diameter

 Inner Diameter

12 in. 16 in. 



6. Packing


Export standard packing in coil wrapped with kraft paper and p.p. cloth paper, in wooden skid.