What is the impact test for S355J0?

Jul 08, 2025 Leave a message

What is the impact test for S355J0?
Grade S355J0 has a minimum yield strength of 355 MPa. The impact energy at a test temperature of 0°C is at least 27 joules.

 

What does JR mean in steel?
The J means that the test was conducted with 27 joules of energy. This is followed by either an R for room temperature, or a number referring to the temperature the tests were conducted at. So JR is room temperature (plus 20 degrees) J0 is 0 degrees and J2 is -20 degrees.

 

What is BS EN 10025 grade S355J0?
S355J0 steel is a more yield and tensile strength steel grade than S235JR and S275JR in 0 degree temperature impact test. It is used to be in in riveted, bolted, or welded construction of bridges and buildings. S355J0 mean that the delivery station is hot rolled or control rolled.

 

What is the difference between S355JR and S355J0?
In S355JR and S355J0 steel, JR and J0 indicates the steel needs to do +20℃ impact test and 0℃ impact test respectively. The different impact temperature is the main difference between S355JR and S355J0 steel.

 

What is the difference between S355J2 and S355J2 N?
The main difference between S355J2 & S355J2+N Bars is that the latter is a normalized rolling variant of the former. S355J2+N Round Bars is a non-alloy structural steel grade under the EN 10025-2 standard, while S355J2 Round Bars are the same grade but without the added step of normalized rolling.