Product Details

If you’re looking for high quality, competitive price Square&Rectangulare Hollow Section Steel Tube you’ve come to the right place.

TRIANGULAR HOLLOW SECTION STEEL TUBE

(1/2 inch to 32 inch)

Company Profile

COMPANY PROFILE

Jinan Xin Jiyuan Special Section Tube Co.,Ltd(Shandong,China), founded in 1997.We devote continuously to the research,development and usage of SQUARE & RECTANGULAR HOLLOW SECTION STEEL TUBES.

Main products are special shaped steel tube, cold..rolled precision tube, cold.rolled shaped tube. And our special shaped new materials enjoys advantage in high strength, super low temperature, impact..enduring, longevity, anti-erosion and easy-jointing.

There are three production lines,make full.sizes of tubes: 15x15mm--800x800mm, 20x30mm--600x800mm,

over 2800 kinds of specifications.Materials are:seamless,stainless,galvanized,welded,carbon,low-alloy,alloy,

etc.

The products is very popular in USA Canada UK Australian Russia India Malaysia Europe and other countries and regions.

Products

PRODUCTS

Products

Square & Rectangular Hollow Section Steel Tube

Out Diameter

15X15mm---800X800mm

20X30mm---600X800mm

Thickness

1.0mm---40.0 mm

Material

Carbon,Low-alloy,Alloy,Seamless,Welded,

Stainless

Technology

ERW,Hot-Rolled,Cold-Formed,Annealed

Standard

GB/T ASTM JIS DIN EN AS

Steel Grade

Q235B, Q345A/B/C/D/E

Gr.A Gr.B Gr.C Gr.D(HEAT TREATMENT)

SS330,SS400,STK490

C250,C350,C450

S185, S235JR,S235J0, S355JR,S355J0,S355J2

20#, 45# ,304,304L,316,316L,etc.

Surface

Black,Oiled,Paint,Hairline,Mirror,Galvanized,Anti-corrosive

Pruduct Use

PRODUCT USE

Our products applies to the manufacture of cars, trucks, buses, special automobiles, agricultural

machines, high speed trains, aviation, shipbuilding, petroleum platform, petroleum land platform,

iron tower, bridges, large scale steel frame, port machine, textile machine, power plant, mining,

wind electricity and chemistry.

Technical requirements:

Chemical Composition:

Yield Strength Grade

Demotic Raw-material Grade

235

Q235B, Q235C, Q235D, Q235qC, Q235qD

345

Q345A, Q345B,Q345C,Q345D,Q345Qc, Q345Qd,

StE355, B480GNQR

Carbon Equivalent:

Ceq(%)=C+Mn/6+Si/24 +Ni/40+Cr/5+Mo/4+V/14

Ⅰgrade product Ceq(%)

Yield Strength Grade	235	345	390
Ceq(%)	≤0.36	≤0.43	≤0.45
Note: In order to improve the performance of steel,390 could add the microelement such as V, Nb, Ti, Mo and N etc.

Mechanical Property:

Yield Strength Grade	W.T	Yield Strength	Tensile Strength (Mpa)	Elongation	(20°C) Impact Value J
Yield Strength Grade	(mm)	(Mpa)	Tensile Strength (Mpa)	(%)	(20°C) Impact Value J
235	4~12>12~22	≥235	≥375	≥23	≥27
345	4~12>12~22	≥345	≥470	≥21	≥27
390	4~12>12~22	≥390	≥490	≥19	≥27

Contact Information

Contact Information

Any question is appreciate!