S235JR is common steel grade in European steel standard specification EN 10025-2 which are mainly used to produce structural parts of the bolted and welded steel industrial area.
Ss400 in Japan steel specification JIS G3101 is also one mild steel grade.Grade S235JR and SS400 are both common carbon structural steels.Type steel plates are making steel tanks in Oil and gas industry.
Comparing Chemical analysis as belows:
S235JR Chemical analysis -% by mass*
Chemical elements | C≤ 16mm max | C>16mm max | Si max |
Mn max | P max. |
S max. |
%,by mass | 0.17 | 0.20 | -- | 1.40 | 0.035 | 0.035 |
SS400 steel plate Chemical analysis -% by mass*
Chemical elements | C≤ 16mm max | C>16mm max | Si max |
Mn max | P max. |
S max. |
%,by mass | 0.17 | 0.20 | -- | 1.40 | 0.045 | 0.045 |
Comparing mechnical property as belows:
Mechnical property for S235JR steel plate:
Thickness (mm) |
|||||||||
S235JR |
≤ 16 |
> 16 ≤ 40 |
> 40 ≤ 63 |
> 63 ≤ 80 |
> 80 ≤ 100 |
> 100 ≤ 150 |
> 150 ≤ 200 |
> 200 ≤ 250 |
> 250 |
Yield strength (≥Mpa) |
235 |
225 |
215 |
215 |
215 |
195 |
185 |
175 |
175 |
|
< 3 |
≥ 3 ≤ 100 |
> 100 ≤ 150 |
> 150 ≤ 250 |
> 250 |
||||
Tensile strength (Mpa) |
360-510 |
360-510 |
350-500 |
340-490 |
340-490 |
Mechnical property for SS400 steel plate:
Thickness (mm) |
||||
SS400 |
≤ 16 |
> 16 ≤ 40 |
> 40 ≤ 100 |
> 100 |
Yield strength (≥Mpa) |
245 |
235 |
215 |
205 |
Tensile strength (Mpa) |
400-510 |
Application of S235JR and SS400 steel
Steel grade S235JR is actively used to implement civil engineering solutions. Steel structures are made from S235JR steel for the construction of industrial and residential facilities, parts of power transmission towers, elements of equipment, offshore structures, oil and gas platforms, automobile bridges and other structures.
SS400 is often rolled into wire rod or round steel, square steel, flat steel, Angle steel, I-beam, Channel steel, window frame steel, and other section steel, medium thick steel plate. It is widely used in buildings and engineering structures. It is used for making steel bars or building workshop frames, high-voltage transmission towers, bridges, vehicles, boilers, containers, ships, etc. It is also widely used as mechanical parts with low-performance requirements.
Consulting detailed material specifications and industry standards for S235JR and SS400 steel can provide comprehensive insights into their properties, applications, and suitability for various structural and construction projects.
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