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                         ASTM A529 Grade 55|A529GR55|A529 Gr.55 steel

 

 

 

Gangsteelis specialized in producing and export A529 Grade 55, A529 Grade 50is structural grade steel supplied in high strength carbon manganese steel. The material can be delivered as normalized (N) or thermo-mechanically rolled (M). Supplied in accordance with ASTM Standard, A529 Grade 50 Min Yield is 345Mpa, A529 Grade 55, min Yield is 380Mpa.

 

 

A529 Grade 55 Chemical Composition

Grade

The Element Max (%)

C

Si

Mn

P

S

Al

N

A529 Grade 55

0.27

0.04

1.35

0.05

0.40

 

 

Nb

V

Ti

Cu

Cr

Ni

Mo

 

 

 

0.2

 

 

 

Crack Sensitivity:  Pcm = (C+Si/30+Mn/20+Cu/20+Ni/60+Cr/20+Mo/15+V/10+5B)%
Carbon Equivalent:  Ceq = 【C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15】%

 

 

 

A529 Grade 55high strength property

Grade

 

Mechanical Property

Charpy V Impact Test

Thickness

Yield

Tensile

Elongation

Degree

Energy 1

Energy 2

A529 Grade 55

mm

Min Mpa

Mpa

Min  %

 

J

J

t≤50

380

485-690

21%

 

 

50<t≤100

380

485-690

21%

 

 

200<t≤100

380

485-690

18%

 

 

Note: Energy 1 is transverse impact test, Energy 2 is longitudinal

 

Boiler steel plates| Alloy steel plates| High strength plate| Carbon steel plate| Stainless steel plate

 

Related Grade:  A529Gr50 |A529GR55

 

SUPPLEMENTARY REQUIREMENTS

Standardized supplementary requirements for use at the option of the purchaser are listed in

Specification A 6/A 6M. Those that are considered suitable for use with this specification are listed by title:

S5. Charpy V-Notch Impact Test.

In addition, the following optional supplementary requirements are also suitable for use with this specification.

S32. Single Heat Bundles.

S32.1 Bundles containing shapes or bars shall be from a single heat of steel.

S78. Maximum Carbon Equivalent.

S78.1 This material shall be supplied with a maximum  carbon equivalent value of 0.55 % or to a lower value specified in the purchase documents. This value will be based on heat analysis. The required chemical analysis as well as the carbon equivalent shall be reported.

S78.2 The carbon equivalent shall be calculated using the following formula:

CE = C + (Mn + Si)/6 + (Cu + Ni)/15 + (Cr + Mo + V + Cb)/5

S79. Maximum Tensile Strength.

S79.1 The maximum tensile strength shall be 90 ksi [620

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