ASME SA515 Grade 65 Steel Plate | SA515 Gr.65 High Temp Vessel Plate

ASME SA515 Grade 65 sits between Grade 60 and Grade 70 in the same carbon-silicon family. The drawing wants high-temperature boiler or vessel plate, not a low-temperature toughness grade. SHH STEEL supplies it as China mill-Direct Supply to ASME SA-515/SA-515M.

The same heat will be called SA515 Gr.65, ASME SA515 GR.65, ASME SA515GR65, SA515GR65, SA-515 Grade 65, ASTM A515 Grade 65, A515 Gr.65 or A515GR65. All of those names are Grade 65 [450] in ASME SA-515. The ASTM companion is A515/A515M.

Minimum yield is 240 MPa (35 ksi). Tensile strength is 450–585 MPa (65–85 ksi). The steel is killed carbon-silicon plate made to coarse austenitic grain practice, which is why SA-515 exists: intermediate- and higher-temperature service in welded boilers and other pressure vessels.

Do not treat ASME SA515 GR.65 as ASME SA516. SA516 is fine-grain plate for moderate- and lower-temperature work. SA515 is the high-temperature carbon-silicon route. It is also not Mn-Mo plate such as SA302, and not Cr-Mo plate such as ASME SA387.

General requirements follow ASME SA-20. For Code work the plate is used under ASME Section VIII. Dual marking ASME SA515 Grade 65 / ASTM A515 Grade 65 is available. Certificates can be EN 10204 3.1 or 3.2.

When a project is still choosing carbon vessel plate, we put ASME SA515GR65 next to ASTM A516, ASME SA537, ASTM A537 and ASTM A285, so temperature, grain practice and strength can be checked in one conversation.

This plate belongs to the Pressure Vessel Steel Plates family. It is not a structural Carbon Steel Plates grade.

Chemistry for ASME SA515 Grade 65 is reported as heat analysis and, when specified, product analysis under ASME SA-515/SA-515M.

Heat Analysis — ASME SA515 GR.65

Product Analysis — ASME SA515GR65

ASME SA-515 allows a carbon–manganese trade: for each 0.01% carbon below the stated maximum, manganese may rise 0.06%, up to 1.50% on heat analysis and 1.60% on product analysis. Grade 65 carbon is higher than Grade 60 at the same thickness, so weld procedures should not be copied blindly from ASME SA515 GR.60. SHH STEEL reports ladle analysis on every certificate and adds product analysis when the PO asks for it.

Tensile Requirements — ASME SA515 Grade 65 per ASME SA-515/SA-515M

Grade 65 is one step above Grade 60 and one step below Grade 70. Density is 7.85 g/cm³. Specimens follow ASME SA-20. If the vessel specification wants simulated PWHT, coupons from the same ASME SA515GR65 heat go through that cycle before tensile and impact testing.

ASME SA515GR65 and SA516 Gr.65 can look interchangeable on a strength table. They are not interchangeable on grain practice or intended temperature. Stay on SA-515 when the drawing is high-temperature boiler work. Move to Grade 70 if the calculation needs 260 MPa yield. Stay on Grade 60 if 220 MPa is enough and forming is tight. Carbon QT options remain ASME SA537 and ASTM A537. HSLA Steel Plates are not a Code substitute.

ASME SA515 Grade 65 is written for intermediate- and higher-temperature welded boilers and vessels. Allowable stress comes from ASME Section II Part D for SA-515 Grade 65, not from a mill brochure.

Charpy testing is not automatic. If the datasheet sets an impact temperature, SHH STEEL puts those sets on the ASME SA515 GR.65 certificate. This plate is not a stand-in for SA203 nickel plate, and it is not a stand-in for SA516 when MDMT controls the design.

ASME SA515GR65 is a P-No. 1 carbon vessel plate and welds with low-hydrogen procedures qualified to ASME Section IX. Carbon is higher than Grade 60, so preheat on thick, restrained joints should follow a Grade 65 WPS, not a copied Grade 60 sheet.

When Section VIII requires PWHT, the shop cycle is the carbon-steel range in UCS-56. If properties after that cycle matter, ask for simulated PWHT coupons with the mill plate. Procedure review can go through steel welding services.

ASME SA-515 does not force quench and temper. ASME SA515 Grade 65 is commonly as-rolled in thinner sizes. Plates over about 50 mm are usually normalized so the mill can meet SA-20 and any toughness or flatness notes on the order.

If the PO fixes a normalizing band or a stress-relief hold, it goes on the mill instruction and onto the certificate. Do not apply SA537 Class 2 quench-and-temper practice unless the specification itself changes.

SHH STEEL ships ASME SA515 GR.65 as-rolled or normalized, as ordered, with the condition printed on the MTC.

The certificate lists ASME SA515 Grade 65 and, when dual certified, ASTM A515 Grade 65; heat number; heat analysis; product analysis when ordered; tensile results; heat-treatment condition; and extra tests. Surface is vessel-plate quality—pickled or shot-blasted if requested—not 2B or BA.

Certificates may be EN 10204 3.1 or EN 10204 3.2. BV, LR, DNV, TUV, SGS or the buyer’s agency can witness when the order says so.

Usual supply range for ASME SA515GR65 high temp vessel plate:

• Thickness: 6 mm – 150 mm (heavier by enquiry)
• Width: up to about 4600 mm
• Length: up to about 12000 mm

State thickness and heat-treatment condition on the PO. Shell and head nest cutting is available.

Dimensional limits follow ASME SA-20. Thickness, width, length, flatness and camber are vessel-plate tolerances. Extra-flat or restricted-thickness plate is accepted when the drawing needs it. UT to A435 or A578 is added when specified. Finished sizes go through steel cutting services.

Most ASME SA515 GR.65 orders add something beyond the base tensile table.

Simulated PWHT. Same-heat coupons follow the vessel cycle.
NDE. UT to A435 / A577 / A578; edge MT/PT after cutting if required.
Impact. Temperature, orientation and energy as written on the RFQ.
Hardness. HBW or HV window after rolling or after simulated PWHT.
Restricted chemistry. Tighter C, P, S or CE.
HIC / NACE. Only when the datasheet cites TM0284 or MR0175 / ISO 15156.
Z-direction. A770 or Z15/Z25/Z35 for thick nozzles.
Third-party. Witness points and EN 10204 3.2.

These tests run through steel testing service. If it is not on the purchase order, it is not assumed.

For stamping, write ASME SA515 Grade 65 or dual SA515 / A515 Grade 65. Nearby pages: ASME SA516, ASTM A516, ASME SA515, ASTM A285.

ASME SA515 Grade 65 is used where high-temperature carbon vessel plate is required and 240 MPa yield is the design number.

Related pages: petrochemical industry, energy industry, steel cutting services, steel welding services, steel testing service, worldwide shipping service.

SHH STEEL is a China mill-Direct Supply for ASME SA-515/SA-515M plate. On ASME SA515 Grade 65 that means mill pricing, dual SA515/A515 marking, heat and product analysis, 3.1 as standard and 3.2 when specified, as-rolled or normalized delivery, and the extra tests a vessel shop actually writes on the PO.

We also keep the order on the right grade: 65 versus 60 or 70 inside SA-515, and SA515 versus SA516 when temperature and grain practice are the real decision. Export packing goes through worldwide shipping service. Company scope: China steel Mill Agent-SHH STEEL.

ASME SA515 Grade 65 Steel Plate is the 240 MPa yield, carbon-silicon high-temperature vessel grade in ASME SA-515/SA-515M. Whether the inquiry says SA515 Gr.65, ASME SA515 GR.65, ASME SA515GR65 or A515GR65, SHH STEEL supplies the plate with heat and product analysis, the agreed delivery condition, optional extra tests, and 3.1 or 3.2 certification.

As China mill-Direct Supply, SHH STEEL provides ASME SA515 Grade 65 / SA515 Gr.65 High Temp Vessel Plate for ASME Section VIII boiler and vessel work.

Contact SHH STEEL for stock, normalizing, dual SA515/A515 marking, 3.2 inspection or a quotation.

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