Material 1.0460

High-temperature constructional steel

C22.8 / ASTM A 105 is an unalloyed quality steel. This steel grade is available from stock either as hot-rolled or forged bars. C22.8 / ASTM A 105 is normalized as well as extensively affirmed as well as C22.8 is available from stock with certificate 3.1 according AD 2000 W13. Mainly it is being used to produce fittings, ball valves or flanges.

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Standards

HDIN / EN	US-Standard	AFNOR	UNI	JIS	request
P250GH	ASTM A105				request

Material Category: High-temperature constructional steel

Chemical Composition

C %

Si %

Mn %

P %

S %

Al %

Cr %

Cu %

Mo %

N %

Nb %

Ni %

Ti %

V %

0,18 - 0,23

max 0,40

0,30 - 0,90

max 0,025

max 0,015

min 0,0200

max 0,30

max 0,08

max 0,012

max 0,020

max 0,30

max 0,03

max 0,02

Mechanical Properties

DIN EN 10273 Warmgewalzte schweißgeeignete Stäbe aus Stahl für Druckbehälter mit festgelegten Eigenschaften bei erhöhten Temperaturen.
normalgeglüht	Streckgrenze (Re)	Zugfestigkeit (Rm)	Bruchdehnung (A5,65)
<= 50 mm	>= 250 N/mm²	410 - 540 N/mm²	>= 25 %
50 - 100 mm	>= 240 N/mm²	410 - 540 N/mm²	>= 25 %
100 - 150 mm	>= 230 N/mm²	410 - 540 N/mm²	>= 25 %

Stäbe Kerbschlagarbeit KV2 (ISO-V/Charpy-V)
Wert	Probenlage	bei Temperatur
>= 27 J	längs	~ -20 ° C
>= 40 J	längs	~ 0 ° C
>= 47 J	längs	~ 20 ° C

0,2% Dehngrenze (Rp0,2)	Wert	bei Temperatur
<= 50 mm	>= 240 N/mm²	~ 20 ° C
<= 50 mm	>= 242 N/mm²	~ 50 ° C
<= 50 mm	>= 237 N/mm²	~ 100 ° C
<= 50 mm	>= 216 N/mm²	~ 150 ° C
<= 50 mm	>= 190 N/mm²	~ 200 ° C
<= 50 mm	>= 170 N/mm²	~ 250 ° C
<= 50 mm	>= 150 N/mm²	~ 300 ° C
<= 50 mm	>= 130 N/mm²	~ 350 ° C
<= 50 mm	>= 110 N/mm²	~ 400 ° C
<= 50 mm	>= 90 N/mm²	~ 450 ° C
50 - 100 mm	>= 230 N/mm²	~ 20 ° C
50 - 100 mm	>= 234 N/mm²	~ 50 ° C
50 - 100 mm	>= 230 N/mm²	~ 100 ° C
50 - 100 mm	>= 210 N/mm²	~ 150 ° C
50 - 100 mm	>= 185 N/mm²	~ 200 ° C
50 - 100 mm	>= 165 N/mm²	~ 250 ° C
50 - 100 mm	>= 145 N/mm²	~ 300 ° C
50 - 100 mm	>= 125 N/mm²	~ 350 ° C
50 - 100 mm	>= 100 N/mm²	~ 400 ° C
50 - 100 mm	>= 80 N/mm²	~ 450 ° C
100 - 150 mm	>= 220N/mm²	~ 20 ° C
100 - 150 mm	>= 224 N/mm²	~ 50 ° C
100 - 150 mm	>= 220 N/mm²	~ 100 ° C
100 - 150 mm	>= 200 N/mm²	~ 150 ° C
100 - 150 mm	>= 175 N/mm²	~ 200 ° C
100 - 150 mm	>= 155 N/mm²	~ 250 ° C
100 - 150 mm	>= 135 N/mm²	~ 300 ° C
100 - 150 mm	>= 115 N/mm²	~ 350 ° C
100 - 150 mm	>= 90 N/mm²	~ 400 ° C
100 - 150 mm	>= 70 N/mm²	~ 450 ° C

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