Ferritic Heat Exchanger Stainless Steel Piping / Welded SS Tubes 6mm - 101.6mm OD

American standards:

ASTM A249:

Standard specification for welded austenitic steel boiler,superheater, heat-exchanger and condenser tubes.

ASTM A269:

Standard specification for welded austenitic stainless steel tubing for general service

ASTM A688:

Standard specification for welded austenitic stainless steel feedwater heater tubes.

ASTM A554:

Standard specification for welded stainless steel mechanical tubing..

ASTM A268:

Specification for seamless and welded Ferritic/Martensitic stainless steel tubing for General Service

ASTM A789:

Specification for seamless and welded Ferritic/Austenitic stainless steel tubing for General Service

ASTM A312:

Seamless/Welded austenitic stainless steel pipe

Germanic standards:

          DIN17455:

General purpose welded circular stainless steel tubes

          DIN17457:

Welded circular austenitic stainless steel tubes subject to special requirements; technical delivery conditions

European Standard:

EN 10217-7:

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

Grade

TP405

TP410

TP429

TP430

TP443

TP446–1

TP446–2A

. . .

TP409

UNS Designation

S40500

S41000

S42900

S43000

S44300

S44600

S44600

S40800

S40900

Element

Composition, %

C, max

0.08

0.15

0.12

0.12

0.2

0.2

0.12

0.08

0.08

Mn, max

1

1

1

1

1

1.5

1.5

1

1

P, max

0.04

0.04

0.04

0.04

0.04

0.04

0.04

0.045

0.045

S, max

0.03

0.03

0.03

0.03

0.03

0.03

0.03

0.045

0.03

Si, max

1

1

1

1

1

1

1

1

1

Ni

0.50 max

. . .

. . .

. . .

0.75 max

0.75 max

0.50 max

0.80 max

0.50 max

Cr

11.5–14.5

11.5–13.5

14.0–16.0

16.0–18.0

18.0–23.0

23.0–27.0

23.0–27.0

11.5–13.0

10.5–11.7

Mo

...

...

...

...

...

...

...

...

...

Al

0.10–0.30

. . .

. . .

. . .

. . .

. . .

. . .

. . .

. . .