HOT ROLLED HOLLOW SECTIONS

EN 10210-1 and EN 10210-2 specify technical delivery conditions, tolerances, dimensions and sectional properties for hot finished hollow sections of circular, square, rectangular or elliptical forms and applies to hollow sections formed hot, with or without subsequent heat treatment, or formed...
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Description
Standard: EN 10210-1, EN 10210-2
Material: S460NLH, 1.8956
Dimensions & Tolerance

Characteristics

Tolerance

Outside Diameter of Size (H:Longest Side; B:Shortest Side)

H<100mm, B<100mm

max ±1% with a min of ±0.5mm

100mm≤H≤200mm, 100mm≤B≤200mm

±0.8%

H>200mm, B>200mm

±0.6%

Wall Thickness

WT≤5mm

±10%

WT>5mm

±0.5mm

Concavity/Convexity

max ±0.8% with a min of ±0.5mm

Squareness of Sides

90°±1°

 

External Corner Radius

WT≤6mm

1.6WT≤R≤2.4WT

6mm<WT≤10mm

2.0WT≤R≤3.0WT

WT>10mm

2.4WT≤R≤3.6WT

Twist

2mm + 0.5mm/m in length

Straightness

1.5mm/1000mm in total length

Mass

±6% in individual lengths

Length

L<6000mm

+5mm/-0mm

6000mm≤L≤10000mm

+15mm/-0mm

L>10000mm

+5mm/-0mm plus 1mm/m

EN 10210-1 and EN 10210-2 specify technical delivery conditions, tolerances, dimensions and sectional properties for hot finished hollow sections of circular, square, rectangular or elliptical forms and applies to hollow sections formed hot, with or without subsequent heat treatment, or formed cold with subsequent heat treatment to obtain equivalent metallurgical conditions to those obtained in the hot formed product.
Manufacture: pipes to EN 10210-1 and EN 10210-2 shall be manufactured by hot finished or cold finished.
Delivery Condition: the pipes shall be delivered in the conditions of two conditions, A qualities JR, J0, J2 and K2 - hot finished, B qualities N and NL - normalized, including normalized rolled.
Inspection & Test: chemistry composition analysis, tensile test, impact test for qualities J2 and K2, welded pipes NDT of the weld, surface inspection and dimension check.

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