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S235JRG2 steel is a specific one and has no different classes. It was regulated in EuroNorm EN 10025 superseded by EN 10025-2 (2006) and the new designation is just S235JR. Both editions deal with "structural" steels.
The designation given is the symbolic one, the numerical designation of material is 1.0038.
The symbolic designation means:
S- "Structural Grade"
235- minimum value of yield strength in MPa ( roughly 35 ksi) for thicknesses ut to 16 mm.
JR- Base steel (Charpy impact test not obligatory, optional only)
G2- Rimming steel not allowed.
More characteristics of this plain carbon steel available in long (Profiles, beams..) and flat products (sheet and plates) are:
Impact value (if specifically required)- 27 J at 20ºC
Carbon content:0.17% max. (0.20% for thicknesses over 40 mm)
Mn content: 1.40% max
P and S content: 0.045% max.
N content: 0.009% max (Not applicable if Al minimun is 0.020%)
ASTM steel S235JRG2 steel has different uses (can be applied to pressure service for example) even if it's a carbon steel too. The different grades refer to different strength grades.
If you want to use EN steels according to EN 10025, there are some other designations for different strength grades (for example S275 or S355 which have a higher yield strength.)
S235JRG2 steel plate Chemical analysis -% by mass*
|
Chemical elements |
C≤ 16mm |
C>16mm |
Si |
Mn |
P |
S |
|
%,by mass |
0.17 |
0.17 |
-- |
1.40 |
0.045 |
0.045 |
S235JRG2 steel sheet Mechanical properties
|
thickness |
Yield Strength ReH[N/mm2]transv.min. |
Tensile |
Fracture Elongation[%]transv. min. |
Notch ImpactEnergy1)Ch Vcomplete samplelongitud. min [J] |
|
t≤ 16mm |
235 |
|
|
Degree: 20 |
|
t < 3mm |
|
360-510 |
|
|
|
Up to 1.5mm |
|
|
16 |
GB T 5312 Carbon and carbon-manganese steel seamless steel tubes and pipes are mainly for ship use, also known as shipbuilding steel pipes. Under GB T 5312, there are mainly 5 steel grades: grade 320, 360, 410, 460 and 490. Each grade covers three levels: I, II, III.
Angle steel, commonly known as angle iron, is a long strip of steel whose sides are perpendicular to each other. There are equal angle steels and unequal angle steels. The two sides of equal angle steel are equal in width. The unequal angle steel is also known as L shape profile steel.
Flat bar steel can be produced according to the user's needs, with fixed thickness, width and length. It can reduce the cutting process for users, reduce the consumption of labor and materials, and also reduce the processing loss of raw materials.
Bulb flat steel for shipbuilding
The bulb flat steel is a kind of medium section material which is mainly used in the field of shipbuilding and bridge building, and the shipbuilding bulb flat steel is an auxiliary medium section material for shipbuilding.
The steel for shipbuilding and oil platform---FH40, is the high tensile strength steel.The shipbuilding steel FH40 is the Hull structural steel.We can provide FH40 shipbuilding steel plate price.
The steel for shipbuilding and oil platform---EH40, is the high tensile strength steel.The shipbuilding steel EH40 is the Hull structural steel.We can provide EH40 shipbuilding steel plate price.
If you are interested in our company or products, welcome to visit our company or local offices; you can also get contact with us through online consulting, demand table submission, e-mails and telephones. Our staff shall wholeheartedly provide product information, application knowledge and good service for you.
BBN SHIP STEEL FACTORY
