Name

Stainless Steel Pipes

Material Grade

1.4301, 1.4404

Standard

EN10217-7

Delivery Condition

Bright Annealing Or Anneal and Pickled

Brand Name

KORER

Application

Heat Exchanger

OD

6mm – 101.6mm

WT

0.3mm – 2.5mm

Grade

Chemical Composition(%)

Remark

C≤

Mn≤

P≤

S≤

Si≤

Cr

Ni

Mo

N

Cu

1.4301

0.07

2

0.045

0.015

1

17.0~19.0

8.0~10.50

0~0.1

1.4307

0.03

2

0.045

0.015

1

17.5~19.5

8.0~10.0

0~0.1

1.4401

0.07

2

0.045

0.015

1

16.5~18.5

10.0~13.00

2.0~2.5

0~0.1

1.4404

0.03

2

0.045

0.015

1

16.5~18.5

10.0~13.00

2.0~2.5

0~0.1

EN 10217-7 Welded Steel Tubes for pressure purposes-Part 7 Stainless steel tubes

Item

Contents

Requirements

1

Materail

Acc. To EN10028-7

2

Welding Method

TIG Welding

3

ChemicalComposition

Table3,Table4

4

Heat Treatment

Annealing or Bright Annealing

5

Straightness

≤3mm/1000mm

6

Tolerance

OD,WT:Acc.to EN 10217-7 Table 10
Height Of Weld Seam: EN 10217-7 Table 11
Length:Acc.to EN 10217-7 Table 12

7

Mechanical Property

Tension Test, Flattening Test,  Flange Test, Leakage Test, NDT For Welding Seam, Expansion Test

1.  Pipes for Liquid Delivery.

2.  Tubes for Power Industry(Thermal Power and Nuclear Power Staition)

and Petrochemical Industry:Boiler, Heat-sink, Cond