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Hollow Steel 35 Square Steel Steel Pipes Cold Deformed Seamless GOST 8639-82
Hollow Steel 35 Square Steel Steel Pipes Cold Deformed Seamless GOST 8639-82
Hollow Steel 35 Square Steel Steel Pipes Cold Deformed Seamless GOST 8639-82
Hollow Steel 35 Square Steel Steel Pipes Cold Deformed Seamless GOST 8639-82
Hollow Steel 35 Square Steel Steel Pipes Cold Deformed Seamless GOST 8639-82
Hollow Steel 35 Square Steel Steel Pipes Cold Deformed Seamless GOST 8639-82
Specifications
Brand Name :
New-Era
Model Number :
ASTM A500
Certification :
ISO9001
Place of Origin :
China
MOQ :
1ton
Price :
Negotiation
Payment Terms :
T/T, L/C
Supply Ability :
2000tons per month
Delivery Time :
20-30days
Packaging Details :
bundles packing with plastic bags wrapped
Standard :
GOST 8639-82
Production Process :
cold deformed seamless
Size :
50x5,60x8,100x8,120x8
Shape :
rectangular,Square,hexagonal
Material :
Steel 10,20,35,45
Length :
Maximal 12M
Description

GOST 8639-82 steel 35 square steel steel pipes , cold deformed seamless hollow section steel tubes

Sizes of square pipes have to confirm the values indicated in the table below:

Outside size A, mm Wall thickness s, mm Section square, cm2 Weight of 1 m pipe, kg, Inertia moment, cm4~ Resistance moment, cm3~
Ix=Iy Wx=Wy
50 5 8.57 6.73 28.26 11.3
60 8 15.54 12.20 67.71 22.57
100 8 28.34 22.25 392.65 78.53
120 8 34.74 27.27 715.66 119.28

Steel density 7/85 g/cm3

Pipe static characteristic is calculated for R=1,5 s

4. Bending radius R should no more than 2 s.

5. Pipes are produced:

Random length

Seamless cold-deformed – 1.5-11m;

Fixed length

Seamless cold-deformed – 4.5-11m;

Multiple lengths

Seamless cold-deformed – 1.5-11m with tolerance for every cut 5 mm;

Total length of multiple length pipes can’t be more than upper limit of fixed length pipe. Tolerance for every ratio is 5mm (if other tolerance is not stipulated) and is a part of every ordered ratio.

6.Limit deviations for outside sizes, wall thickness & sides concavity can’t be more than indicated in the table below:

Parameter name

Limit deviation of pipe size depending

on the precision of production
normal high
Outside sizes +-0.3mm +-0.25mm

Wall thickness:

wall thickness ≤ 3.5mm

wall thickness > 3.5mm

± 12.5%

± 12.5%

± 12.5%

± 10.0%

Sides concavity and convexity:

Up to 50mm

Over 50 to 70mm

Over 70

0.5mm

0.75mm

1.0mm

0.5mm

0.5mm

0.8mm
Coiling of square & rectangular pipes - According to agreement with the customer

7. Thickness variation can’t lead the wall out the limit deviations concerning wall thickness.

8. In pipe cross-section the deviation from right angle can’t be more than ±1.5°.

9. Pipe curvature can’t be more than 2 mm for 1m of length.

Pipes are produced without adjustment, in this case curvature is not regulated.

Hollow Steel 35 Square Steel Steel Pipes Cold Deformed Seamless GOST 8639-82

Hollow Steel 35 Square Steel Steel Pipes Cold Deformed Seamless GOST 8639-82Hollow Steel 35 Square Steel Steel Pipes Cold Deformed Seamless GOST 8639-82

Product tags

hot finished seamless steel pipe

,

steel seamless pipe

,

heat resistant seamless steel pipe
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Hollow Steel 35 Square Steel Steel Pipes Cold Deformed Seamless GOST 8639-82

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Product Detail
Brand Name :
New-Era
Model Number :
ASTM A500
Certification :
ISO9001
Place of Origin :
China
MOQ :
1ton
Price :
Negotiation
Contact Supplier
Hollow Steel 35 Square Steel Steel Pipes Cold Deformed Seamless GOST 8639-82
Hollow Steel 35 Square Steel Steel Pipes Cold Deformed Seamless GOST 8639-82
Hollow Steel 35 Square Steel Steel Pipes Cold Deformed Seamless GOST 8639-82

NEW-ERA STEEL TUBE TECHNOLOGY CO.,LTD

Verified Supplier
7 Years
Since 1988
Business Type :
Manufacturer
Main Products :
Precision Seamless Steel Tube, Seamless Cold Drawn Steel Tube, Seamless Boiler Tube
Total Annual :
100000000-15000000
Employee Number :
150~200
Certification Level :
Verified Supplier
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