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Jinan Tianzan is an enterprise exporting steel to more than 50 countries and regions in Europe, southeast Asia, Africa, etc., the company constantly updates advanced technology and innovation to provide customers with quality products, welcome all customers and friends from all over the world to come to our company

Copyright © 2020 Jinan Tianzan Steel Co.,Ltd

Contact us

E-mail:sales@lctzsteel.com

Phone:+86 13306447194

Whatsapp:+86 13306447194

Add:No.359 Shunhua Road ,Hi-tech Zone District, Jinan City, Shandong Province

One-stop solution for steel products

S355 Galvanized square pipe

Phone:+86 13306447194

Whatapp:+86 13306447194

Since its establishment, Jinan Tianzan Steel Co., Ltd. has standardized operation and strict management. Relying on the advantages of rich iron and steel resources in Shandong province, the company's proprietary technology and famous and excellent featured products, it promotes technological progress, optimizes product structure, moderately expands production scale, and its business performance continues to grow steadily.

Our company

EN 10025 S355 Steel

S355 steel is a European standard structural steel grade, according to EN 10025-2: 2004, material S355 is divided into 4 main quality grades:


S355JR (1.0045),

S355J0 (1.0553),

S355J2 (1.0577) and

S355K2 (1.0596).

The properties of structural steel S355 is better than steel S235 and S275 in yield strength and tensile strength.


Steel Grade S355 Meaning (Designation)

The following letters and numbers explains the steel grade S355 meaning.


“S” is short for “structural steel”

“355” refers to the minumum yield strength value for the flat and long steel thickness ≤ 16mm.

“JR” means the impact energy value is minumum 27 J at room temperature (20℃).

“J0” can withstand the impact energy at least 27 J at 0℃.

“J2” related to the minumum impact energy value is 27 J at -20℃.

“K2” refers to the minumum impact energy value is 40 J at -20℃.



EN10210 EN10219 S355 S235 S275 steel tube,galvanized steel pipe
NameDiameter or SizeWall Tickness
Round pipe8mm-3000mm0.4mm-60mm
Square pipe30×30mm-800×800mm2mm-30mm
Rectangular pipe50×30mm-800×300mm2mm-30mm
Length1m-16m or according to customers’requirements
StandardsEN 10210 EN10219 ASTM A500 JIS G3466 STKR etc
GradeS235JRH S275J2H S355J0H S355J2H Grade A/B/C/D 400/490
Surface finishBlack Bright and Galvanized or painted
PackingWith steel belts or nylon or according to customers’requirements
ApplicationStructural pipe Pressure pipe Mechanical system roller,etc
Trade termsFOB/CIF/CFR
CertificationCE CCS ISO9001 and so on


S355 Galvanized square pipe

PACKAGE DELIVERY20200413172139993.jpg@!w160020ft GP:5898mm(Length)x2352mm(Width)x2393mm(High)   24-26CBM

40ft GP:12032mm(Length)x2352mm(Width)x2393mm(High)   54CBM

40ft HC:12032mm(Length)x2352mm(Width)x2698mm(High)    68CBM

In bundle,plastic bags,thin film,wooden pallet,standard seaworthy export packing or as customer demands


S355 Galvanized square pipe