JIS G3115 SPV235 Steel Plate | SPV235 Pressure Vessel Plate
What is JIS G3115 SPV235 Steel?
JIS G3115 SPV235, also written SPV 235, JISG3115 SPV235 and SPV235 steel plate, is a weldable pressure-vessel plate under JIS G3115. The standard title is Steel plates for pressure vessels for intermediate temperature service. SPV235 is the lowest strength grade in that book. Yield is 235 MPa at 6–50 mm. Tensile is 400–510 MPa. Thickness may run to 200 mm. Usual delivery is as-rolled, with normalize allowed when the order names it. SHH STEEL is a global steel mill sourcing partner and steel manufacturer & exporter (mill-direct, China origin) for this grade. Plate is produced to JIS G3115 and shipped to buyers in the USA, Europe, Middle East and Southeast Asia.
A purchase order that only says “SPV plate” is incomplete. Write JIS G3115 SPV235. Do not ship SPV315 against an SPV235 drawing. Do not ship SA516 Gr.70 and call it SPV235 because tensile looks close. Do not ship ASTM A36 steel plate against a Japanese vessel drawing.
JIS G3115 is not a low-temperature vessel book. Low-temperature Japanese plate belongs under JIS G3126. It is not boiler plate under JIS G3103 SB. It is not ordinary structural plate under JIS G3106. Intermediate-temperature service means the plate is intended for pressure vessels and high-pressure equipment that are not specified for high-temperature or low-temperature service under other JIS books.
This page is not DIN 17100 St37-2. It is not SA285 Gr.C even though strength is in a similar band. It is not QT alloy under ASME SA387 or ASME SA543.
Company scope: global steel mill sourcing partner – SHH STEEL.
Material Specification
| Specification Element | Requirement | SHH STEEL Compliance |
|---|---|---|
| Grade | JIS G3115 SPV235 / SPV 235 | Confirmed |
| Product Specification | JIS G3115:2022 | Applied |
| Service idea | Intermediate-temperature pressure vessels | Confirmed |
| Steel type | Killed, weldable plate | Confirmed |
| Usual delivery | As-rolled; normalize allowed | Confirmed |
| Yield idea | 235 MPa at 6–50 mm | Confirmed |
| Tensile | 400–510 MPa | Confirmed |
| Thickness | 6–200 mm | Confirm mill |
| Supply role | Global steel mill sourcing partner | SHH STEEL |
| Markets | USA, Europe, Middle East, Southeast Asia | FOB / CIF as ordered |
| Certification | EN 10204 3.1 or 3.2 / third-party | As ordered |
This plate sits in pressure vessel steel plates and carbon steel plates. ASME comparisons belong on ASME SA516 and ASME SA285, not as automatic substitutes.
Chemical Composition
JIS G3115 SPV235 / SPV 235 is a killed C-Mn plate. Carbon rises slightly in the thick band.
Heat Analysis — JIS G3115 SPV235 (typical limits)
| Element | Thickness | Heat Analysis (%) |
|---|---|---|
| Carbon (C), max | 6–100 mm | 0.18 |
| Carbon (C), max | 100–200 mm | 0.20 |
| Silicon (Si), max | All | 0.35 |
| Manganese (Mn), max | All | 1.40 |
| Phosphorus (P), max | All | 0.020 |
| Sulfur (S), max | All | 0.020 |
Other elements may be added when needed for deoxidation or grain practice. Product analysis, when ordered, is slightly wider than heat analysis. Do not treat an SPV315 heat as SPV235. SHH STEEL reports heat analysis on every certificate and product analysis when the order names it. If a Houston, Rotterdam or Jebel Ali specification tightens P and S further, write that on the order.
Mechanical Properties
Yield starts at 235 MPa at 6–50 mm and falls as thickness rises.
Tensile and Yield — JIS G3115 SPV235
| Thickness (mm) | Yield min (MPa) | Tensile (MPa) |
|---|---|---|
| 6 – 50 | 235 | 400 – 510 |
| 50 – 100 | 215 | 400 – 510 |
| 100 – 200 | 195 | 400 – 510 |
| Density | 7.85 g/cm³ | 7.85 g/cm³ |
Elongation depends on thickness and specimen type (No. 1A or No. 4). Bend testing is specified. Charpy energy for SPV235 is commonly 0 °C, average 47 J, individual 27 J. Write the test temperature if the destination file wants something other than the JIS default.
Do not quote 235 MPa yield on a 120 mm plate. Do not treat 400–510 MPa tensile as permission to stamp SA516 Gr.60, SA285 Gr.B or SA299 Gr.A.
How the Six JIS G3115 Grades Differ
| Grade | Yield idea (thin) | Tensile | Usual route |
|---|---|---|---|
| SPV235 | 235 MPa | 400–510 | AR / N |
| SPV315 | 315 MPa | 490–610 | AR / N / TMCP / QT by agreement |
| SPV355 | 355 MPa | 520–640 | AR / N / TMCP / QT by agreement |
| SPV410 | 410 MPa | 550–670 | TMCP first |
| SPV450 | 450 MPa | 570–700 | QT first |
| SPV490 | 490 MPa | 610–740 | QT first |
Same book. Different strength and different heat-treatment default. SHH STEEL will not ship SPV235 against an SPV410 TMCP drawing.
Material Comparison
| Grade | Route | Strength idea | Swap? |
|---|---|---|---|
| JIS G3115 SPV235 | Intermediate-temp vessel | 235 / 400–510 | This page |
| JIS G3115 SPV315 | Intermediate-temp vessel | 315 / 490–610 | No |
| SA285 Gr.C | ASME carbon vessel | 205 / 380–515 | No |
| SA516 Gr.60 | ASME carbon vessel | 220 / 415–550 | No |
| SA516 Gr.70 | ASME carbon vessel | 260 / 485–620 | No |
| ASTM A36 steel plate | Structural | Not a vessel book | No |
| JIS G3106 SM400 | Structural | Not SPV | No |
SA203 Gr.A, SA515 Gr.60 and SA662 Gr.A are also vessel plates. None of them is SPV235.
Intermediate-Temperature Vessel Service
JIS G3115 SPV235 / SPV 235 is selected for welded pressure vessels, tanks and high-pressure equipment that still name the Japanese intermediate-temperature book at the 235 MPa step. It is the practical Japanese counterpart to a low-strength carbon vessel plate. It is not automatically an ASME Section VIII plate. If the vessel is ASME, the drawing should name an ASME or ASTM grade such as SA285 Gr.C, SA516 Gr.60 or SA516 Gr.70.
SHH STEEL supplies this plate to fabricators in the United States, Europe, the Middle East and Southeast Asia. It is not nickel low-temp plate like SA203 Gr.D or SA203 Gr.E. It is not QT Ni-Cr-Mo like SA543 Type B Cl.1. It is not Cr-Mo like SA387 Gr.22 Cl.2. Stainless inquiries belong on ASME SA240 or ASTM A240.
Weldability
SPV235 is killed C-Mn vessel plate at the lowest SPV step. Welding is production welding, and Code welding when the equipment is a vessel.
Qualify procedures to the applicable code. For ASME work that happens to use a dual-named plate, use ASME Section IX. Consumables should match the 400–510 MPa tensile band, not a SA387 Gr.12 Cl.2 Cr-Mo procedure and not a QT procedure from SA517 Gr.F. Preheat follows thickness and hydrogen control. The fabricator owns the WPS. SHH STEEL can share mill heat data for that review.
Heat Treatment and Delivery Condition
Usual delivery from SHH STEEL is as-rolled JIS G3115 SPV235 / SPV 235 plate. Normalize is allowed when the order names it. TMCP and QT are not the default route for this grade. Those routes belong on SPV410 / SPV450 / SPV490.
If the vessel will see PWHT, test coupons shall follow a simulated cycle when the order names it. This is not the QT route used on SA738 Gr.B or SA737 Gr.C. Special heat treatment, extra simulation or third-party hold points add time. Plan about two months when those extras are on the order.
The certificate lists JIS G3115 SPV235 (and SPV 235 if requested); heat number; heat analysis; product analysis when ordered; tensile results to the correct thickness column; delivery condition; impact at the named temperature. Certificates may be EN 10204 3.1 or EN 10204 3.2. Dual marking to SA285 Gr.C or SA516 Gr.60 is not automatic.
Dimensions
Usual supply range from SHH STEEL for SPV235 pressure vessel plate:
- Thickness: commonly 6 mm – 200 mm. Confirm any request above 150 mm against mill capability
- Width: 1500 mm – 4000 mm
- Length: 3000 mm – 12000 mm
- Cut-to-length plates and nest sizes inside those limits
Ship plate inquiries belong on shipbuilding steel plates or BV Rules. Weathering plate belongs on EN 10025-5 or Corten A/B. TMCP fine-grain structural belongs on EN 10025-4. QT structural belongs on EN 10025-6. Ordinary structural belongs on EN 10025-2 or JIS G3106.
Tolerances
Dimensional limits follow the mill rolling standard named on the order. Do not apply ASTM A36/A36M structural tolerances to a JIS vessel plate without writing them. UT to JIS, EN 10160 or ASTM A435 / A577 / A578 is added when the order names it.
Supplementary Requirements
Most export JIS G3115 SPV235 / SPV 235 orders add extras. SHH STEEL does not assume them.
Charpy details. Temperature, energy, location and orientation. JIS default is commonly 0 °C.
Product analysis. Add this when the destination file wants finished-plate chemistry, not only ladle chemistry.
Simulated PWHT. When the equipment will be stress-relieved.
NDE. UT per the named method.
Z-direction / through-thickness testing. When the drawing names Z15 / Z25 / Z35.
Third-party. EN 10204 3.2, with inspectors arranged for US, European or Middle East documentation packages.
Equivalent Material Grades
These names are project-comparison grades. They are not automatic substitutes.
| Designation | Standard / region | Notes |
|---|---|---|
| JIS G3115 SPV235 / SPV 235 | JIS G3115 | Name on this page |
| SPV315 | JIS G3115 | Next strength step |
| SA285 Gr.C | SA-285 | Similar low-strength vessel idea |
| SA516 Gr.55 / SA516 Gr.60 | SA-516 | Related carbon vessel family |
| ASTM A285 | A285 family | Related low-strength vessel family |
| ASTM A516 | A516 family | Related vessel family |
| ASME SA515 | SA-515 family | Intermediate/high-temp carbon |
ASME SA662 is not SPV235.
Applications
| Industry | Typical components |
|---|---|
| Intermediate-temperature vessels | JIS G3115 SPV235 shells and SPV 235 plates |
| Tanks and process steelwork | SPV235 courses |
| Dual-certified export | SPV235 plate from SHH STEEL when the drawing keeps the JIS name |
| Fabrication | SPV235 cut to nest sizes |
Stainless inquiries belong on stainless steel products, JIS G4305 or AISI stainless. Other vessel comparisons: SA203 Gr.B, SA302 Gr.B, A516 Grade 70, SA533 Type C Cl.2, SA517 Gr.P, SA738 Gr.C.
Global Delivery & Markets
SHH STEEL is a global steel mill sourcing partner with mill partnerships in China. We supply ASTM, ASME, EN, DIN, JIS steel to the USA, Europe, Middle East and Southeast Asia. Origin is mill-direct, China origin. We do not treat JIS G3115 SPV235 as an Asia-only stock item. Inquiry packages are written for fabricators and EPC buyers in Houston, Rotterdam, Antwerp, Jebel Ali, Dammam, Singapore, Tokyo and surrounding ports.
Typical trade terms:
- FOB Shanghai
- CIF Houston
- CIF Rotterdam
- CIF Jebel Ali
- Other CIF / CFR ports on request (Los Angeles, New York, Hamburg, Genoa, Jeddah, Mundra, Ho Chi Minh, Yokohama)
Typical lead time for JIS G3115 SPV235 / SPV 235:
- Ex-stock / ready plate: about 5–7 days after order confirmation, subject to actual warehouse size and cutting
- Mill rolling, standard as-rolled or normalize: about 45 days
- Special heat treatment, simulated PWHT, 3.2 hold or extra NDE: about 2 months
Documents travel with the cargo: mill certificate, packing list, commercial invoice, bill of lading, and EN 10204 3.1 or 3.2 as ordered. Third-party inspection can be arranged before loading for US, European, Middle East or Japanese documentation packages. Packing is seaworthy, with edge protection and marking in English as specified on the order.
If the buyer actually needs SPV410 TMCP or SPV490 QT, say so on the inquiry. If the buyer needs a PED / 3.2 file, say so on the inquiry. Do not assume a domestic Chinese certificate format will pass at destination.
Why Choose SHH STEEL
SHH STEEL is a global steel mill sourcing partner and steel manufacturer & exporter (mill-direct, China origin). We supply ASTM / ASME / EN / DIN / JIS steel to the USA, Europe, the Middle East and Southeast Asia. On JIS G3115 SPV235 / SPV 235 that means mill pricing, SPV235 chemistry reported as heat analysis and as product analysis when ordered, recorded delivery condition, tensile results to the correct thickness column, 235 MPa yield in the thin band, 3.1 as standard and 3.2 when specified. Trade terms include FOB Shanghai and CIF Houston / Rotterdam / Jebel Ali.
We keep the grade on the order. SPV235 is not SPV315. SPV235 is not SPV410. SPV235 is not SA516 Gr.70. SPV235 is not SA387 Gr.22 Cl.2. JIS G3115 is not JIS G3103 and not JIS G3126. If the drawing names 315 MPa, we will not ship SPV235 and call it close.
Company scope: global steel mill sourcing partner – SHH STEEL.
Conclusion
JIS G3115 SPV235 Steel Plate, also searched as SPV 235, JISG3115 SPV235 and SPV235 steel plate, is weldable pressure-vessel plate under JIS G3115 for intermediate-temperature service at the 235 MPa yield step, 400–510 MPa tensile, thickness to 200 mm. Whether the inquiry says JIS G3115 SPV235, SPV 235 or SPV235 Pressure Vessel Plate, SHH STEEL as a global steel mill sourcing partner and steel manufacturer & exporter (mill-direct, China origin) supplies plate with SPV235 chemistry, recorded delivery condition, and EN 10204 3.1 or 3.2 certification.
SHH STEEL supplies JIS G3115 SPV235 / SPV235 Pressure Vessel Plate to the USA, Europe, the Middle East and Southeast Asia for work that actually names this grade. FOB Shanghai / CIF Houston / Rotterdam / Jebel Ali.
Contact SHH STEEL for mill rolling, stock inquiry, normalize, impact testing, 3.2 inspection or a quotation.
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