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ASTM A606 TYPE 4

ASTM A606 TYPE 4
ASTM A606 TYPE 4
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Product Code : 33
Product Description

ASTM A606 TYPE 4

COR-TEN ® is a weathering steel and was developed to avoid having to paint steel for protection. This means that it has increased resistance to atmospheric corrosion when compared to unalloyed steels. It achieves this by forming a protective rust-coloured oxide layer on its surface. Its alloying with copper and chromium ensure the formation of a firmly adhering protective layer of rust which delivers a particular aesthetic appearance and weathering performance. COR-TEN ® is not rustproof in itself. COR-TEN ® is a registered trademark of the United States Steel.

It is vital to take expert advice when using COR-TEN ® as an architectural element.
It is important to understand the climate where it will be used, and it presents several construction challenges design, detailing, fabrication and erection.

  • Welds have to be designed and executed to weather at the same rate as material being joined.

  • Areas where water can stay may experience higher corrosion rates.

  • In salt-laden air environments the protective patina may not stabilize but continue to corrode.

  • Moisture should not be trapped within and adequate ventilation to ensure wet-dry cycles.

Its normal surface weathering can lead to rust stains on nearby surfaces. Basic guidelines for the use of this steel are described in EN 10025-5, and the mechanical properties of weathering steels depend on which alloy and how thick the material is.

Chemical composition of CORTEN A :


Grade

 %C

 %Si

 %Mn

 %P

 %S

 %Cr

 %Cu

 %V

 %Ni

CORTEN A


0.12

0.25-0.75

0.20-0.50

0.07-0.15

0.030

0.50-1.25

0.25-0.55

…..

0.65

Mechanical Properties of CORETEN A:

Grade

Minimum yield point
ReH
Mpa *)

Tensile strength
Rm MPa

Minimum elongation A
(Lo=5.65 So) 
%

CORTEN A

355

470-630

20

Equivalent specification of CORTEN A:

EN 10155

NFA 35-502

SEW 087

UNI

BS 4360

JIS G3114

ASTM

INDIAN STANDARD

OTHERS

S235J2W

E24 W 4

WTSt 37-3

Fe 360 DK1

WR 50 A

SMA 50 AW

Corten-A

IRSM41-97

09CUPCRNI-A

S355J0WP

E36 WA 3

WTSt 52-3

Fe 510 C1K1

WR 50 B

SMA 50 CP

Corten-B

SAILCOR

9CRNICUP234

S355J2WP

E36 WA 4


Fe 510 D1K1

WR 50 C


A242 Type1


10HNAP,

S355J0W

E36 WB 3


Fe 510 C2K1



A 588 Gr.B


10XHAP

S355J2G1W

E36 WB 4


Fe 510 D2k1



A 588 Gr. A


10 KHNDP

S355J2G2W






A 588 Gr. C


JIS G 3125 SPA-H

S355K2G1W






A 709 Gr. 50 W


15217









17G1S


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