350x250x6.3mm Primer Coated Steel rectangular hollow section S235JRH, S275J0H, S355J2H

350×250×6.3 mm S235JRH Steel Rectangular Hollow Section

350x250x6.3mm Steel rectangular hollow section in S235JRH, S275J0H, S355J2H to EN 10219, with a primer-coated surface optimised for paint adhesion. Nominal weight 57.03 kg/m.

Minimum order

Minimum 10 t per size. If the size is already in the current production cycle, we can accept orders from 5 t. Standard length 6 m; 4–12 m on request. We confirm the minimum, lead time and grade in your quote.

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Minimum order: 10 t per size (from 5 t if the size is in production)

Weight per meter:57.03 kg/m
Total length:6 meters
Total weight:342.18 kg

Applications & Usage

This extra heavy-duty industrial Steel rectangular hollow section is commonly specified for heavy structural supports, load-bearing frames, and demanding industrial applications. The 6.3mm wall thickness provides exceptional structural integrity while maintaining workability. The applied finish enhances both durability and appearance. Available in standard lengths of 6m, this profile can be easily cut, drilled, and welded to suit your specific requirements.

Technical Specifications

SpecificationValue
Dimensions350mm × 250mm × 6.3mm
Weight per Meter57.03 kg/m
MaterialSteel
Alloy/GradeS235JRH, S275J0H, S355J2H
StandardEN 10219
FinishPrimer Coated
Standard Length6m
Internal Weld RemovalAvailable on request
Minimum Order per Size10 t
Cut-to-Length Range4000 – 12000 mm

Section Properties

Nominal values calculated from nominal dimensions to EN 10219-2.

PropertyValue
Cross-sectional area(A)72.6 cm²
Second moment of area(Ix)12923 cm⁴
Second moment of area(Iy)7744 cm⁴
Radius of gyration(ix)13.3 cm
Radius of gyration(iy)10.3 cm
Elastic section modulus(Wel,x)738 cm³
Elastic section modulus(Wel,y)620 cm³
Plastic section modulus(Wpl,x)876 cm³
Plastic section modulus(Wpl,y)698 cm³
Torsional inertia constant(It)15291 cm⁴
Torsional modulus constant(Ct)1010 cm³
Surface area per metre(As)1.17 m²/m
Length per tonne17.5 m

Grade strength and capacity

Minimum strength of each grade this size is rolled in, with the indicative capacity of the section.

GradeMin. yieldTensileBending Wel·fyAxial A·fy
S235JRH235 MPa360–510 MPa174 kNm1707 kN
S275J0H275 MPa410–560 MPa203 kNm1998 kN
S355J2H355 MPa470–630 MPa262 kNm2579 kN

Ordered in S355J2H, the S235JRH bending capacity of this size is reached with a 6 mm wall in the same outer size (54.7 kg/m, 4% lighter).

Indicative values from nominal dimensions: Wel × fy and A × fy, without buckling, cross-section class or partial safety factors. Not a design check.

Nearest inch size to ASTM A500: HSS 14 × 10 × ¼ →