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S355JR Carbon Steel Square Tube
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S355JR Carbon Steel Square Tube

S355JR steel grade is the European standard for hot rolled structural steel. s355JR steel belongs to the table of unalloyed structural steels (EN10025-2:2004). It is suitable for medium to high strength parts, has good toughness and is easy to form and weld.
  • As customers' demands

  • Hongguan

S355JR Carbon Steel Square Tube China Manufacturer & Supplier

S355JR Square Tube S355 grade is actually a structural grade with a high yield strength of 355N/mm2. There is no doubt that this grade of pipe offered by Shandong Hongguan Iron & Steel Group Co., Ltd. has various good attributes that make it in high demand. In the industry, the product is manufactured by using very good quality alloys purchased from reputable market suppliers. The use of latest technology and modern tools are improving the quality of production. They are also basically taking into account the quality standards of various raw materials. This is a higher standard of production for the precision industry. The tubes are offered to the buyers at market leading prices.

S355JR Steel Square Tube Specifications

Product Type EN-10025-2  Grade S355JR square Tube
OD 15x15mm-600x600mm / 20x30mm-600x800mm
Wall  Thickness 1.2mm-20mm, SCH30,SCH40,STD,XS,SCH80,SCH160,XXS etc.
Length Less Than 12m
Steel  material Q195 → S355JR
Standard BS EN10296,BS EN10025,BS EN10297,BS6323,  BSEN10219,BSEN10217,GB/T13793-1992,GB/T14291-2006,  GB/T3091-1993,GB/T3092-1993,GB3640-88
Usage Used For Structure, Accessorize And Construction
Surface  Treatment Bared, Black Painted (varnish coating), Galvanized,  With Oiled, 3 PE, FBE, corrosion resistant coating
Technique Electronic Resistance Welded (ERW ), Electronic  Fusion Welded (EFW)
Section  Shape Square and rectangular
Package Bundle, In Bulk, Bags square galvanised steel hollow  section tube, Clients’ Requirements

Carbon Steel Rectangular And Square Tube Show

Carbon Steel Square Pipe

Equivalent Grade of S355JR Square Tubes

USA Germany Japan France England Canada European  old Belgium Spain
A572 St52-3 SM490A E36-2 50B 350W Fe510B AE355B AE355B
A678Gr.A SS490 350WT

Chemical Properties of S355JR Square Tubes

max 0.24
max 0.55
max 1.6
max 0.04
max 0.04
max 0.012
max 0.55
max 0.47

Mechanical Properties of S355JR Square Tubes

Tensile strength Rm Minimum elongation – A Notch  impact test
Minimum yield strength Reh MPa Lo = 5,65 * √So (%)

Steel grade Nominal thickness Nominal thickness Nominal thickness Temperature
mm mm mm

≤16 >16 >40 >63 >80 >100 >3 >100 >3 >40 >63 >100 °C
≤40 ≤63 ≤80 ≤100 ≤125 ≤100 ≤125 ≤40 ≤63 ≤100 ≤125
S355JR 355 345 335 325 315 295 470-630 450-600 22 21 20 18 -20

Packing & Delivery

Carbon Steel Square Tube

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  1. Competitive price and quality from our own factory

  2. Approved by ISO9001, CE, SGS every year

  3. Best service with 24 hour's reply

  4. Flexible payment with T/T,L/C

  5. Smooth production ability(50000tons/month)

  6. Quick delivery and standard exporting package

  7. OEM/ODM

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