Location: Home >> About Us >> Executive standard
 
  Products Center
  Qianhe Prodcuts
  YiChuan Prodcuts
  Qianhe Metal Profile
  Contact
 
Teddy Shi
 
No.20 BeiHai Road Cangzhou Development Zone Hebei Provice of China
 
+86-317-3096501 / 3096502 / 3096716
 
Cell Phone+86-18713767771
 
+86-317-3096503
 
hebeixinzhonglian@163.com / Sales@xzltg.com
 
hebeixinzhonglian

 

Tolerance Of Size And Angle Tolerance Of Size And Angle

 

QBTTS01 Usually(special)

JISG3466( Japan )

GB6728-2002( China )

GB3094-2000( China )

A,Bmm

 

 

Under50

0.5

250

2.0

Under30

0.3(ordinary)

0.2(advanced)

Under100

0.50.25 

Under100

1.5

100

0.8

300

2.4

3050

0.4(ordinary)

0.3(advanced)

Above100

0.8%(0.5%) 

Above100

1.5%

150

1.2

350

2.8

5075

0.8%(ordinary)

0.7%(advanced)

200

1.6

400

3.2

Above75

1%(ordinary)

0.8%(advanced)

Level degree mm

Under100

Under0.50.3

Under100

Under0.5

Under60

0.4

 

 

50-75

0.8%(ordinary)

0.5%(advanced)

Above100

Above0.5%0.4%

Above100

A,B0.5%

Above60

0.6%

 

 

Above75

0.9%(ordinary)

0.6%(advanced)

Contained angle of adjoint level

1.0(0.5)

1.5

 

 

Bending degree

1.5mm in total length 1mm in 1 meter is allowed

Total length is Under 0.3%

Each meter is not greater than 2,the total length is not greater than 0.2%

Per meter<=4.0mm ,total length<=0.4%

Angle department

Rs<=23t

Rs under 3t

carbon streel Rs under 3.5t

t<6

Rs=2t

Low-alloy Rs under 4t

6<=t<=10

Rs<=2.5t

t>10

Rs<=3t

Distortion

1.5%mm in total length 1mm in 1 meter is allowed

no obvious distortion

Under75

<=2.5mm/m

Above75

<=3.0mm/m

wall thickness

in the range of corresponding tolerance standards of the material

Note:(1)QBTTS01 -- TTS enterprise internal standard,cold formed steel hollow sections for general structure

     (2)JISG3466 -- the standard of rectangle type steel tubes that generally constructed and used in Japan

     (3)GB/T6728-2002 -- cold drawn shaped steel tubes

     (4)Other special precision is according to the agreement signed by both sides of supply and demand

     (5)The welded joint usually in the middle of the heterogeneous type tube broadside,please propose in addition
     for special demand

     (6)carbon steel type:Q195Q345,10#45#,and so on; Stainless steel type:SUS304,316,321,titanium alloy,pure
     titanium and so on

 
  Copyright Hebei Qianhe Steel Tube Co.,Ltd. 2010-2019
Tel+86-317-3096501 / 3096502 / 3096716
Fax+86-317-3096503       Cell Phone+86-18713767771
E-mailSales@xzltg.com / hebeixinzhonglian@163.com       Sevice [Zhibo]