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carbon steel plate

line

A709 Grade 50S steel

Product information

1. For all Grades, the steel shall be killed.
2. For Grades 50W[345W], HPS 50W [HPS 34W],and HPS 70W[HPS 485W], the steel shall be made to fine grain practice.
3. For Grade 50S[345S], the steel-making practice used shall be one that produces steel having a nitrogen content not greater than 0.015 % and includes the addition of one or more nitrogen-binding elements, or one that produces steel having a nitrogen content of not greater than 0.012 % (with or without the addition of nitrogen-binding elements). The nitrogen con-tent need not be reported, regardless of which steel-making practice was used.
4. For Grades HPS 50W[HPS 345W], HPS 70W [HPS 485W] and HPS 100W[HPS 690W], the steel shall be made using a low-hydrogen practice, such as vacuum degassing during steel making; controlled soaking of the ingots, slabs; controlled slow cooling of the ingots, slabs, or plates, or a combination thereof.
5. For Grade HPS 100W[HPS 690W], the requirements for fine austenitic grain size in Specification A6/A6M shall be met.
6. Grades HPS 50W[HPS 345W] and HPS 70W[HPS 485W] shall be furnished in one of the following conditions: as-rolled, control-rolled, thermo-mechanical control processed(TMCP) with or without accelerated cooling, or quenched and tempered.
7. For fracture critical base material only, weld repair of the base metal by the material manufacturer or supplier is not permitted.

Chemical composition & Mechanical property

Element

Chemical %

C, max

0.23

Mn

0.50-1.60A

Si ,max

0.40

V ,max

0.15B

Nb ,max

0.05B

P ,max

0.035

S ,max

0.045

Cu ,max

0.60

Ni xma

0.45

Cr ,max

0.35

Mo ,max

0.15


A709 Grade

Thick
mm

Yield
 [MPa]

Tensile [MPa]

Elongtation Min %

reduction
Min
%

HB

Steel Plate

Structural steel

8in[200mm]

2in[50mm]

8in[200mm]

2in[50mm]

36[250]

≤100

[250]min

400-550

20

23

20

21

 

[250]min

400min

20

19

50[345]

≤100

345min

450min

18

21

18

21F

50S[345S]

G

345-450HI

450minH

18

21

50W[345W]
HPS50W[HPS345W]

≤100

345min

485min

18

21

18

21J

HPS70W[HPS485W]

≤100

485min

585-760

19K

100 [690], 100W [690W],HPS100W [HPS690W]

≤65

690minB

760-895

18K

L

235-293M

100 [690], 100W [690W],

65-100

620minB

690-895

16K

L

Factory Display

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Application Field

Oil & Gas
Oil & Gas
Chemical Industry
Chemical Industry
Marine Engineering
Marine Engineering
Construction Industry
Construction Industry
Power Generation
Power Generation
Machinery industry
Machinery industry