SA-515 Grade 60: establish the acceptance identity first
Gangsteel welcomes enquiries for ASME SA515 Grade 60 plate against a defined boiler or pressure-vessel purchase specification. For this carbon-silicon family, a useful enquiry starts with the material designation and document trail, not an isolated strength figure. Grade 60 may be written as SA515GR60 or SA515 Gr.60 in commercial correspondence, but the purchase order needs an unambiguous specification, governing edition and delivery condition.
An ASME order is more than an ASTM material name
Name SA-515 or SA-515M, Grade 60, and the governing Code year or Section II-A edition. Add the construction-code basis and any project restrictions so the material reviewer can resolve acceptance before a commercial offer is approved. An ASTM A515 Grade 60 certificate is not by itself SA-515 acceptance. Similar chemistry and tensile limits do not create automatic dual certification.
| Order item | Information to establish | Receiving review |
|---|---|---|
| Specification identity | SA-515 or SA-515M; Grade 60; Code year or Section II-A edition | Match the designation and edition to the approved order |
| Size and units | Thickness, width, length, quantity, unit system and tolerances | Keep plate identification linked to each ordered size |
| Delivery condition | As-rolled, normalized or another agreed condition | Compare the reported treatment with the required condition |
| Tests and certificate form | Required examinations, acceptance criteria, report format and witnessing | Check actual results and traceability, not a catalogue statement |
Historical ASME contents information confirms the SA-515/SA-515M specification title, but does not establish a current adoption year or today’s detailed requirements. BPVC.II.A-2025 has not been read for this summary. The numerical guidance below is an ASTM-family public reference, not an official SA-515 extract for a named Code year. Final acceptance remains against the ordered edition and approved project documents.
Thickness-dependent chemistry for the Grade 60 enquiry
The chemistry table separates heat analysis from product analysis. MetalMate’s Grade 60 guide, supported by the Ferrobend family compilation, provides these public-reference mass percentages; the ArcelorMittal H62 mill sheet supports the thinner-range chemistry but is not evidence of unlimited production. Carbon increases through the thickness bands. Use the actual ordered thickness rather than carrying a thin-plate carbon limit into a heavy-plate review.
| Element and thickness basis | Heat analysis | Product analysis |
|---|---|---|
| Carbon, ≤1 in. [25 mm], max | 0.24 | 0.24 |
| Carbon, >1–2 in. [>25–50 mm], max | 0.27 | 0.27 |
| Carbon, >2–4 in. [>50–100 mm], max | 0.29 | 0.29 |
| Carbon, >4–8 in. [>100–200 mm], max | 0.31 | 0.31 |
| Carbon, >8 in. [>200 mm], max | 0.31 | 0.31 |
| Manganese, basic max | 0.90 | 0.98 |
| Silicon | 0.15–0.40 | 0.13–0.45 |
| Phosphorus, max | 0.025 | 0.025 |
| Sulfur, max | 0.025 | 0.025 |
The manganese entries are basic maxima, not a licence to ignore a composition footnote. MetalMate and Ferrobend describe a carbon–manganese trade-off: each 0.01 percentage-point reduction in carbon permits 0.06 additional manganese, up to 1.50% heat and 1.60% product. H62 does not print that footnote. Any proposed use of this adjustment needs confirmation against the ordered material requirements; it is not a separately verified ASME clause here.
A heat analysis describes the melt; a product analysis is a separate check on finished material. Keep those result types labelled on the report. An enquiry for restricted chemistry should specify the analysis basis and acceptance rule rather than simply asking for “low carbon”. Blank or missing certificate information should be referred for clarification, not replaced with a family maximum.
Keep yield, tensile strength and gauge length separate
| Property | Public-reference value | Basis |
|---|---|---|
| Tensile strength | 60–80 ksi [415–550 MPa] | Official ASTM A515/A515M-17(2022) public Scope; family reference here |
| Minimum yield strength | 32 ksi [220 MPa] | Public compilation and mill reference; not a named-Code extract |
| Minimum elongation, long gauge | 21% in 8 in. [200 mm] | Public reference; applicable A20 specimen adjustments |
| Minimum elongation, short gauge | 25% in 2 in. [50 mm] | Public reference; applicable A20 specimen adjustments |
The 415 MPa figure is the tensile lower bound and the SI family grade designation, not the yield minimum. Treating it as yield would substantially misidentify Grade 60. Both elongation gauges are shown because a percentage without its specimen basis cannot be compared reliably with a test report; the two values are not thickness bands or an instruction to run both specimen forms on every plate.
Room-temperature tensile properties are not vessel design allowable stresses. The responsible engineer must establish allowable stress and service suitability from the applicable Code, temperature, thickness and condition. The official ASTM family describes intermediate- and higher-temperature welded-boiler and pressure-vessel service, with killed steel and coarse austenitic grain practice. That application description does not provide a universal operating-temperature limit or a low-temperature toughness guarantee.
Resolve the delivery condition before scheduling fabrication
MetalMate’s ASTM-family compilation restates that plate over 50 mm [2 in.] is normalized, while plate at or below that threshold is normally as-rolled unless another condition is ordered. This is a compilation restatement, not a verified paid SA-515 heat-treatment clause. It avoids describing one plate as simultaneously normalized and as-rolled. Confirm the actual SA requirement and reportable condition for the governing edition; do not import another vessel family’s treatment threshold.
Inch-pound and SI values are separately standard systems, not exact mathematical equivalents; select one system for compliance and use it independently. The family’s composition-limited thickness concept does not turn a former 300 mm rolling habit into a specification cap or an availability promise. For large sections, request a size-specific feasibility review including treatment, sampling and tolerances.
Identify any impact testing, ultrasonic examination or simulated fabrication heat treatment in the enquiry. State the method, specimen conditions and acceptance criteria where required. None is promised as a default, and a request for an MTR alone does not add missing tests. Welding and forming procedures must address the actual heat chemistry and fabrication sequence rather than a generic grade-name rule.
Related material routes, without substitution
For an ASTM-designated requirement, see ASTM A515 Grade 60 plate. The separate ASME SA515 Grade 65 related page is a sibling topic, not a source for Grade 60 values or an approved upgrade. Neither link changes the specified material or authorizes substitution.
Grade 60 buyer questions
Can a report showing 415 MPa yield be accepted as Grade 60 evidence?
Do not accept that figure solely because it appears in a description. The public-reference yield minimum is 32 ksi [220 MPa]; 415 MPa is the tensile lower bound. Ask for the original test report, result labels and governing specification before disposition.
Does an A515 marking establish SA-515 compliance?
No. Review the required ASME designation, Code edition, manufacturing and test documentation. Any dual marking needs its own documented compliance basis; it is not inferred from matching nominal strength.
Is normalized delivery automatic for every thickness?
No blanket statement is made here. The published family restatement distinguishes the 50 mm [2 in.] threshold, while the actual SA acceptance requirement and any purchaser treatment must be settled in the order.
What should accompany a cut-size plate enquiry?
Provide finished dimensions, quantities, tolerances, edge requirements and identification expectations. Explain whether testing and traceability must follow each cut piece, so the proposed processing route can be reviewed before cutting.
Can tensile compliance replace an impact requirement?
No. Tensile strength and elongation do not establish notch toughness. Where the Code or project requires impact testing, define temperature, orientation, specimen size, frequency and acceptance values without assuming a standard default.
Send a complete SA-515 Grade 60 requirement
Send the specification and Code edition, unit system, plate schedule, delivery condition, required tests and certificate form. Gangsteel can review the enquiry against that basis; size feasibility, documentation and any supplementary requirements remain subject to confirmation.