EN10219-2 Non - alloy / Fine Grain Steels Cold Formed Welded


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Place of Origin
China
Brand name
Torich
Payment Terms
L/C,T/T
Production method
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Shipping / Lead Time
Negotiable / Negotiable
Keyword
welded steel pipe, fine grain steels, cold formed steel tube, welded structural hollow sections
Category
Steel Pipes

Torich International,.Ltd

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PRO
Country / Year Established
China China /
Business type
Trading Company
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9

Product name EN10219-2 Non - alloy / Fine Grain Steels Cold Formed Welded Certification -
Category Steel Pipes Ingredients -
Keyword welded steel pipe , fine grain steels , cold formed steel tube , welded structural hollow sections Unit Size -
Brand name Torich Unit Weigh -
origin China Stock -
Supply type - HS code -

Product Information

 

EN10219-1 EN10219-2  Cold Formed Welded Structural Hollow Sections of Non-Alloy and Fine Grain Steels

 

 

Part 1: Technical delivery condition

Part 2: Tolerances, Dimensions and Sectional Properties

 

Structural hollow section manufacturing process:

Structural hollow sections are manufactured by electric weding or submerged arc welding without subsequent heat treatment. Hollow sections manufactured by a continuous process shall not inlude the welds used to join the lengths of strip prior to formning the hollow section, except that for hlically welded submerged arc-welded (SAW) hollow sections, such welds shall be permitted when tested in accordance with 9.4.3.0 EN10219-1, EN10291-2.

 

Delivery conditions:

The hollow sections are delivered cold formed without subsequent heat treatment except that weld seam maybe in the as welded or heat treated condition

NOTE:  For SAW hollow sections above 508 mm outside diameter it may be necessary to perform a warm shaping operation, which does not affect the mechanical properties, in order to meet the out-of-roundness tolerance requirements.

 

Suitability for hot dip galvaninzation:

The products are sutibale for hot dip galvanization.
 

 

TABLE 1 Tolerances

Symbol

Unit

Definition

B

mm

Nominal length of side of square hollow section.Nominal length of the shorter side of a rectangular hollow section

C1/C2

mm

Length of corner region of a square or retangular hollow section

Dmax/Dmin

mm

The maximum and minimum outside diameter of a circular hollow section measured in the same plane

H

mm

Nominal length of the longer side of a rectangular hollow section

M

Kg/m

Mass per unit length

T

mm

Nominal thickness

O

%

Out-of-roundness

T

mm

Nominal thickness

V

mm

Total measured twist

 

TABLE 2 Tolerances

Characteristic

Circular hollow sections

Square and rectangular hollow sections

Outside dimensions

(D,B andH)

±1% with a minimum of ±0.5mm and a maximum of ±10mm

Side length

(mm)

Tolerance

H,B <100

 

100≤H,B≤200

H,B>200

±1% with a minimum of

±0.5mm

±0.8%

±0.6%

Thickness(T)

For D≤406.4mm:

T≤5mm ±10%

T>5mm ±0.50mm

For D>406.4mm:

±10% with a maximum of 2mm

T≤5mm ±10%

T>5mm ±0.50mm

Out-of-roundness(O)

2% for hollow sections having a diameter to thickness ratio not exceeding 100①

——

Concavity/convexity②

——

Max. 0.8% with a minimum of 0.5mm

Squareness of side

——

90° ±1°

External corner profile

——

See table 3

Twist(V)

——

2mm plus 0.5mm/m length

Straightness

0.20% of total length

0.15% of total length

Mass(M)

±6% on individual lengths

①Where the diameter to thickness ratio exceeds 100 the tolerance on out-of-roundness shall be agreed.

②The tolerance on convexity and concavity is independent of the tolerance on outside dimensions.

 

TABLE 3 External Corner Profile

Thickness

T

mm

External Corner Profile

C1,C2,or R1

mm

T≤6

6<T≤10

10<T

1.6T to 2.4T

2.0T to 3.0T

2.4T to 3.6T

The sides need not be tangential to the corner arcs.

 

TABLE 4 Tolerances on length

Type of length

Range in mm

Tolerance

Random length

4000 to 16000 with a range of 2000 per order item

10% of sections supplied may be below the minimum for the ordered range but not less than 75% of the minimum of the range

Approximate length

≥4000

﹢50mm

0

Exact length

<6000

≥6000 to ≤10000

>10000

﹢5mm

0

﹢15mm

0

﹢5mm  +1mm/m

0

①The purchaser shall indicate in the enquiry and order the type of length required and the length range or length required.

 

 

B2B Trade

Price (FOB) Negotiable transportation -
MOQ Negotiable Leadtime Negotiable
Payment Options L/C,T/T Shipping time Negotiable

Torich International,.Ltd

Country / Year Established
China China /
Membership
PRO
Business type
Trading Company

9

President
sales
Address
Room706,Qiling Mansion, Yinzhou District, Ningbo,China 315100
Product Category
Steel Pipes
No. of Total Employees
101-500
Company introduction

Torich Interational Co.,Ltd is a professional manufacturer and exporter of steel pipes materials. It is an international marketing and sales company specialized in steel tubes, which holds the factories of Seamless Steel Tubes with Carbon and Alloy Steel Grade, Welded Precision Steel Tubes,DOM Steel Tubes, Seamless & Welded Stainless Steel Tubes with Nickel and Alloy Steel Grade.
Our factory was established since 1997, with the name of Haiyan Sanxin Steel Pipe Co., Ltd. The factories’ technicians are of great engineering experience in steel pipe industry for more than 20 years, which are in great command of production technology for Cold Drawing and Cold Rolling. So we have strong technician team and manufacturing capability. 

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