Differences between Boiler Steel grade S235JR and P235GH
S235JR and P235GH. Both are non-alloy steels used for pressure vessels and pipes containing hot liquids. The S235JR is less expensive than the P235GH and has a higher carbon content, which is important for some applications. The S235JR is commonly used in structural applications, while the P235GH is more cost effective. This article will examine the differences between the two steels and the benefits of each.
S235JR is the most widely used steel for building components. The minimum yield strength is 230 MPa. The energy-related quality level is 27 J/20°C. It is equivalent to ASTM A36, but the differences are not that great. They are similar in chemical composition and mechanical properties. If you are looking for a high strength material for structural applications, S235JR is the best choice.
What is S235JR?, What is P235GH?
P235GH is a common choice for welded compressive structures. It has a minimum yield strength of 235 MPa and a Charpy impact test of 27 J at 20°C. S235JR is a common choice for structural components and is equivalent to ASTM A36. The differences between these two steel grades are very small. In general, they are similar in chemical composition and mechanical properties.
S235JR is a non-alloy steel commonly used for boiler auxiliary parts and available with stamping or rolling certification. Its strength is between 325 and 500 MPa and it has good weldability. The S235JR is ideal for low pressure applications and can withstand high temperatures. However, P235GH has a higher yield strength and is less likely to deform.
P235GH is a European specified steel suitable for high operating temperatures. While both steels are similar in chemical composition, S235GH is considered the higher strength of the two. As a result, it is also more expensive. Also, the price of the first is higher than the second. Compared to the S235JR, the P235GH is a more expensive choice.
The S235JR is more expensive than the P235gh and it should be noted that steels of the same grade are very different. The S235JR is used for pipelines and pressure equipment, while the P235GH is used for pipelines and other high pressure applications. Both are standardized for different uses and the class you choose will depend on the particular application.
The quality of the P235Gh is higher than the S235JR. Both are suitable for pressure equipment. Grade S235JR is used for a variety of applications. In contrast, the S235JR is a lower cost option. Additionally, it's cheaper than P235GH, so it's easier to find the same type of steel. The ratings are also similar when it comes to chemical resistance.