ERW Hollow Sections

Field of Application

Construction, light and heavy duty machinery, scaffolding, automotive, furniture.

Production Standards & Steel Qualities

• DIN 2395, DIN 1615 - DIN 2458, DIN 17120, DIN 59411

• St 33, St 37-2/3, St 44-2/3, St 52-3

• BS 6363, BS 1139, Gr 34/26, Gr 43/36, BS 4360 Gr 43 C

• ASTM A 500 Gr a, Gr B, Gr C

• NF A 49-643

• EN 10219

Finishing Operations

Plain End - Square cut or beveled.

Tests Performed

• Visual and Dimensional Inspection

• Mechanical Tests:
   *  Tensile Test
   *  Flattening Test, Flaring Test
   *  Expanding Test
   *  Impact Tests

• Metallographic Examination

• Chemical Analysis

• Non Destructive Inspection:
   *  In-Line Ultrasonic (weld check)
   *  On-Line Eddy Current (for round tubes)

Mill Test Certificates

According to DIN 50049 (EN 10204) 2.1; 2.2; 3.1B

Surface Conditions

• Black self colored/uncoated

• Mill protective coating (oil, black varnished) on outside surface for rounded tubes

Technical Data:

 *  ERW Circular Hollow Sections (DIN 1615 - DIN 2458)

 *  ERW Rectangular and Square Hollow Sections (DIN 59411)

 *  ERW Rectangular and Square Hollow Sections (DIN 2395)