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JIS G3466 STKR490 40x40x2.5 Galvanized Square Hollow Section

JIS G3466 STKR490 40x40x2.5 Galvanized Square Hollow Section

STKR490 Square Hollow Section

JIS G3466 Square Hollow Section

40x40x2.5 Square Hollow Section

Place of Origin:

China

Brand Name:

Torich

Certification:

IS09001 ISO14001 TS16949

Model Number:

JIS G 3466

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Product Details
Grade:
STKR 400 490
Dimensions:
Diameter 5-420mm
Application:
General Structure
Type:
Carbon Structural Steel
Standard:
JIS
Highlight:

STKR490 Square Hollow Section

,

JIS G3466 Square Hollow Section

,

40x40x2.5 Square Hollow Section

Payment & Shipping Terms
Minimum Order Quantity
5tons
Price
NEGOTIATION
Packaging Details
IN BUNDLES
Delivery Time
30-60DAYS
Payment Terms
L/C, T/T
Supply Ability
60000 tons annual
Product Description

 

JIS G 3466 SS400 STKR 400 STKR490 galvanized square hollow section 40x40x2.5

Special shape : Square and retangle shape  seamless steel tubes

JIS G 3466 Carbon Steel Square and Rectangle tubes for general structure

 

Standard    JIS G 3466

Deminsion 420mm*420mm upon requests

Wall thickness    0.5-50mm

Length        12m max

 

Application :for general structural purposes

 

Produce method:

  1. Forming welded steel tubes 
  2. Seamless steel tubes into square
  3. Forming a steel sheet in coil into square section    or into one pair of channel section followed by a continuous electric ressistance welding      or automatic arc welding process.

CHEMICAL COMPOSITION %  max

Steel grade

C

Si

Mn

P

S

STKR 400

0.25

-

-

0.04

0.04

STKR 490

0.18

0.55

1.5

0.04

0.04

 

MECHANICAL PROPERTIES min

Steel Grade

Tensile strength Mpa

Yeild point or proof stress Mpa

Elongation %

STKR 400

400

245

23

STKR 490

490

325

23


 

Dimensional tolerance

Specified item and dimension

Dimensional tolerance

length of side

100mm or under

±1.5mm

over 100mm

±1.5%

Unvenness of flat plate portions

side length 100mm or under

0.5mm max

side length over 100mm

within 0.5% of side length

Angularity made by adjacent flat plate portions

 

±1.5°

Dimension at corner:s

3t max

Length

+ not specified

 0

Un-straightness

Within 0.3%

Wall thickness :t

Square steel tube manufacture by welding

under 3 mm ±0.3mm
3mm or over ±10%

Seamless square steel tube

under 4mm ±0.6mm
4mm or over ±15%

 

 

More: Torich JIS G3444 3466 Standard STK400 STKR 400 STKR490 Square Steel Pipe 20x20x2 used as table leg Square and rectangle Weight:

 

W=0.0157t(A+B-3.287t)

 

Coating: Hot dip zinc coating

Electrolytic zinc coating

Hot dip aluminium -coated

Hot dip zinc-5% aluminium alloy-coated

Hot dip 55% aluminium alloy coated

 

End: plain or charmfering

 

 

JIS G3466 STKR490 40x40x2.5 Galvanized Square Hollow Section 0 JIS G3466 STKR490 40x40x2.5 Galvanized Square Hollow Section 1JIS G3466 STKR490 40x40x2.5 Galvanized Square Hollow Section 2 JIS G3466 STKR490 40x40x2.5 Galvanized Square Hollow Section 3

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