Technical Specifications According to JIS G3115
The Japanese Industrial Standard JIS G3115 regulates the production of hot-rolled steel plates with enhanced weldability characteristics. This type of steel is designed for the manufacturing of pressure vessels and industrial press equipment. The material is optimized for service under standard temperature conditions (excluding cryogenic and high-temperature environments). EV Group China offers supplies of high-quality steel plates that meet the strict requirements of this standard.
The table below presents the nominal thickness ranges for various steel grades according to JIS G3115:
| Steel Grade | Thickness, mm |
|---|---|
| SPV235 | from 6 to 200 inclusive |
| SPV315 | from 6 to 150 inclusive |
| SPV355 | from 6 to 150 inclusive |
| SPV410 | from 6 to 150 inclusive |
| SPV450 | from 6 to 150 inclusive |
| SPV490 | from 6 to 150 inclusive |
Chemical composition is a key factor ensuring the structural stability of the metal during welding and subsequent operation under load. The mass fraction values of the elements are provided in the following specification:
| Steel Grade | C | Si | Mn | P | S |
|---|---|---|---|---|---|
| SPV235 | <0.18* | 0.15-0.35 | <1.40 | <0.030 | <0.030 |
| SPV315 | <0.18 | 0.15-0.55 | <1.60 | <0.030 | <0.030 |
| SPV355 | <0.20 | 0.15-0.55 | <1.60 | <0.030 | <0.030 |
| SPV410 | <0.18 | 0.15-0.75 | <1.60 | <0.030 | <0.030 |
| SPV450 | <0.18 | 0.15-0.75 | <1.60 | <0.030 | <0.030 |
| SPV490 | <0.18 | 0.15-0.75 | <1.60 | <0.030 | <0.030 |
Note: For the SPV235 grade, the carbon value <0.18 is specified for plates up to 100 mm thick; for steel plates with a thickness exceeding 100 mm, the C content must be <0.20. Specialists at EV Group China are ready to provide detailed quality certificates for each batch of metal.