JIS G3115

JIS G 3115 Steel Plates For Pressure Vessels For Intermediate Temperature Service

The SPV material for pressure vessels is SPV235, SPV315, SPV355, SPV410, SPV450, SPV490, and six types of material symbols are stipulated by JIS standards. The carbon content is limited to 0.18% or less or 0.20% or less, such as composition, tensile strength, yield point, bendability, Charpy impact value, elongation, carbon equivalent for observing weldability, and weld cracking susceptibility composition. Various parameters for use in pressure vessels are included in the specified values.

The pressure vessel is one of the indispensable components for industrial and industrial applications such as boilers, various receiving and storage tanks, reaction vessels, accumulators, and heat exchangers. There are various applications from vacuum to high-pressure environments exceeding 1000 atm. Mainly, the materials for pressure vessels that can be used vary depending on the heat-resistant temperature and pressure, how much the pressure and pressure can withstand, and what kind of liquid and gas it comes into contact with. For example, in the case of a liquefied gas with a boiling point as high as -268 ° C, such as helium, the steel material corresponding to such an extremely low temperature will be selected. Some containers are used at temperatures above 600 ° C in high temperatures.

For these reasons, materials designed for pressure vessels are required to withstand the pressure and corrosion of substances that come into contact with them. It will be regarded as important.

For this weldability, there are specific values ​​for the “carbon equivalent” and “weld cracking susceptibility composition” calculated from the material components (for each heat treatment). This is the idea of ​​controlling the quality of cracks and breaks in welds.

In addition, there is a parameter for each material for Charpy absorbed energy, which is an important indicator for looking at impact strength.

In addition, mechanical properties are specified for yield point, yield strength, tensile strength, elongation, and bendability.

Technical Requirements & Additional Services:

  • High tension test
  • Chemical Analysis
  • Low temperature impacting test
  • Ultrasonic test under EN 10160,ASTM A435,A577,A578
  • Issued Orginal Mill test certificate under EN 10204 FORMAT 3.1/3.2
  • Shot blasting and Painting,Cutting and welding as per end user’s demands

 

JIS G3115 SPV315
C% SI% Mn% P% S%
0.2 0.8 1.7 0.02 0.01
≤0.18 ≤0.55 ≤0.16 ≤0.030 ≤0.030
Yield Strength, for product in mm, Mpa, min Tensile Strength, Mpa Elongation, %, min
6<T≤50 50<T≤100 100<T≤200 ≤16 16<T≤40 >40
315 295 275 490-610 16 20 23
JIS G3115 SPV355
C% SI% Mn% P% S%
0.2 0.8 1.7 0.02 0.01
≤0.20 ≤0.55 ≤0.16 ≤0.030 ≤0.030
Yield Strength, for product in mm, Mpa, min Tensile Strength, Mpa Elongation, %, min
6<T≤50 50<T≤100 100<T≤200 ≤16 16<T≤40 >40
355 335 315 520-640 14 18 21
JIS G3115 SPV410
C% SI% Mn% P% S%
0.2 0.8 1.7 0.02 0.01
≤0.18 ≤0.75 ≤0.16 ≤0.030 ≤0.030
Yield Strength, for product in mm, Mpa, min Tensile Strength, Mpa Elongation, %, min
6<T≤50 50<T≤100 100<T≤200 ≤16 16<T≤40 >40
410 390 370 550-670 12 16 18
JIS G3115 SPV450
C% SI% Mn% P% S%
0.2 0.8 1.7 0.02 0.01
≤0.18 ≤0.75 ≤0.16 ≤0.030 ≤0.030
Yield Strength, for product in mm, Mpa, min Tensile Strength, Mpa Elongation, %, min
6<T≤50 50<T≤100 100<T≤200 ≤16 16<T≤40 >40
450 430 410 570-700 19 26 20
JIS G3115 SPV490
C% SI% Mn% P% S%
0.2 0.8 1.7 0.02 0.01
≤0.18 ≤0.75 ≤0.16 ≤0.030 ≤0.030
Yield Strength, for product in mm, Mpa, min Tensile Strength, Mpa Elongation, %, min
6<T≤50 50<T≤100 100<T≤200 ≤16 16<T≤40 >40
490 470 450 610-740 18 25 19

Heat treatment of SPV steel sheet

SPV steel types Heat treatment
SPV235 As-rolled. Normalization may be performed as necessary.
SPV315, SPV355 These two types are still rolled in principle. However, there are provisions that allow normalization if necessary. If there is an agreement between the delivery parties, thermal processing control and quenching / tempering may be performed.
SPV410 Steel sheet for thermal processing control. However, the maximum thickness that can be manufactured by thermal processing control is up to 100mm. Depending on the agreement between the delivery parties, normalization and quenching / tempering may be performed instead of thermal processing control.
SPV450, SPV490 It is a grade that performs quenching and tempering as a heat treatment. Depending on the agreement between the parties, normalization can also be performed.
Related products
JIS G3115 SPV49
SPV450 is a kin
SPV410 is one o
SPV355 is one o
SPV315 is a ste
SPV235 is one o
Under JIS G3115
Weathering stee
Hot rolled atmo
Hot rolled atmo
We offer SMA490
Hot rolled atmo