ASTM A515 Grade 60   Carbon-silicon vessel plate: distinguish the tensile class, yield requirement and thickness-specific analysis before ordering.

Grade 60 plate for a defined boiler or pressure-vessel material line

ASTM A515 Grade 60 is carbon-silicon steel plate intended primarily for intermediate- and higher-temperature service in welded boilers and other pressure vessels. The A515/A515M-17(2022) public Scope identifies this service and the Grade 60 tensile range. Its public abstract describes killed steel made to a coarse austenitic grain-size practice, with A20/A20M general requirements forming part of the material basis.

For an enquiry to Gangsteel, identify the full designation and edition rather than only “Grade 60.” The material name does not establish the design allowable stress, operating-temperature limit, delivered heat treatment or supplementary inspection package. These must match the component specification. In particular, the SI grade label and the minimum tensile strength must not be read as the minimum yield strength.

Read tensile strength and yield strength as separate properties

A515 Grade 60 strength and elongation: public-Scope tensile plus labelled public references
Property Grade 60 reference Basis / applicability
Tensile strength 60–80 ksi [415–550 MPa] Official A515/A515M-17(2022) public Scope
Yield strength, minimum 32 ksi [220 MPa] Public reference; not an official Table 2 extract
Elongation, minimum 21% in 8 in. [200 mm] Public reference; applicable specimen and A20 adjustments
Elongation, minimum 25% in 2 in. [50 mm] Public reference; applicable specimen and A20 adjustments

The yield and elongation entries are supported by ArcelorMittal Europe H62 and the MetalMate/Ferrobend compilations. H62 reports transverse properties within its 5–80 mm offering; it is not evidence of that producer’s properties or availability beyond that range. The compilations provide the ksi/SI pairings and gauge-length references. These are purchasing references, not a reproduction of the paid ASTM mechanical table.

415 MPa is the tensile lower bound, not the Grade 60 yield minimum. Use the correct property line when checking a report. Likewise, 21% and 25% refer to different elongation gauges, not an interchangeable percentage range. The inch-pound and SI systems are independent; select the ordered system and do not combine convenient conversions from both systems to assess compliance.

Select the carbon band from the actual plate thickness

Grade 60 chemistry below combines public mill references and compilations. H62 supports the applicable heat-style chemistry within 5–80 mm. MetalMate’s Grade 60 guide and Ferrobend supply the heat/product distinctions and thicker carbon bands. Values are mass percentages, with maxima distinguished from ranges; they are neither typical heat results nor a promise of tighter chemistry.

A515 Grade 60 chemistry — public-reference heat and product analysis
Element Thickness applicability Heat analysis, % Product analysis, %
Carbon (C) 1 in. [25 mm] and under 0.24 max 0.24 max
Carbon (C) Over 1 to 2 in. [25 to 50 mm], inclusive 0.27 max 0.27 max
Carbon (C) Over 2 to 4 in. [50 to 100 mm], inclusive 0.29 max 0.29 max
Carbon (C) Over 4 to 8 in. [100 to 200 mm], inclusive 0.31 max 0.31 max
Carbon (C) Over 8 in. [200 mm] 0.31 max 0.31 max
Manganese (Mn) Basic maximum; conditional allowance below 0.90 max 0.98 max
Silicon (Si) Applicable analysis basis 0.15–0.40 0.13–0.45
Phosphorus (P) Public-source maximum 0.025 max 0.025 max
Sulfur (S) Public-source maximum 0.025 max 0.025 max

P/S maxima of 0.025% are public-source restatements, not confirmed current-edition official limits. Carbon entries beyond H62’s 80 mm offering come from the compilations. Heat and product analysis must remain identified on the report: a finished-product tolerance must not silently replace the heat-analysis criterion.

MetalMate and Ferrobend describe a conditional allowance: each 0.01 percentage-point reduction below the specified carbon maximum permits a 0.06 percentage-point increase above the manganese maximum, up to 1.50% heat and 1.60% product analysis. This compilation footnote is not printed as an A515 allowance on H62’s table. Check its applicability against the ordered edition before accepting a result; the ceilings are not unconditional manganese maxima.

Specify delivery condition and thickness without a fictitious supply cap

The 17(2022) public Scope gives no numerical maximum thickness: its limit is the capacity of the composition to meet the required mechanical properties. That is a specification provision, not a Gangsteel capacity statement. A carbon band extending above 200 mm is not an availability commitment. Submit the requested thickness, dimensions and property requirements for an order-specific assessment.

For delivery planning, MetalMate’s Grade 60 compilation citing 17(2022) restates normalizing over 50 mm [2 in.], with plate at or below that thickness normally as-rolled unless otherwise ordered. This is a compilation reference, not an official heat-treatment clause available in the public Scope. Agree the actual condition in the purchase order and identify it in the material report. Coarse-grain practice alone does not prove that a plate was normalized.

Connect the test report to the plate being accepted

Grade 60 report review: connect each result to its purchasing basis
Report field What to establish Order-review action
Material identity A515/A515M Grade 60, edition, heat and plate identity Match the order and plate markings
Thickness and analysis Correct carbon band and stated heat/product basis Assess the appropriate limits together
Tension and elongation Yield, tensile range, gauge and specimen basis Apply the ordered unit system and A20 provisions
Delivery and extra tests Actual treatment and any agreed examination scope Review reports against the specified acceptance criteria

State any required impact testing, ultrasonic examination or additional inspection separately, including its acceptance basis. The grade name does not promise an impact energy, test temperature, HIC performance, classification approval or a particular certificate form. Agree the document type and inspection scope at quotation stage rather than infer them from a general supplier description.

Choose related grades through the design requirement

For other A515 strength designations, review A515 Grade 65 plate and A515 Grade 70 plate as related products, not automatic replacements. Their names do not authorize changing a drawing or borrowing their chemistry for Grade 60. A515 also differs from fine-grain A516 vessel plate; the SA515 versus SA516 family comparison explains the designation and service distinction in the ASME families, not numerical acceptance limits for this ASTM order.

A515 Grade 60 buyer questions

Does Grade 415 mean a minimum yield of 415 MPa?

No. In this designation context, 415 MPa identifies the lower tensile level, paired with Grade 60’s 60 ksi class. The public-reference yield minimum is 32 ksi [220 MPa]. Keep tensile and yield on separate report lines and assess them under the edition and unit system specified in the order.

Which carbon maximum applies when a plate schedule crosses a thickness boundary?

Assign each plate to its own thickness band in the selected unit system. Grade 60 has five published reference bands, not one carbon limit for the complete order. A quotation covering several thicknesses should therefore retain the thickness-to-analysis relationship rather than print only the largest carbon maximum.

Can product-analysis manganese be checked against the heat-analysis limit?

They have different published bases: the basic references are 0.90% heat and 0.98% product. Record the analysis type, then check applicable tolerance and any conditional carbon–manganese allowance under the ordered requirements. Selecting whichever column gives a pass is not a valid acceptance method.

Can Grade 60 replace Grade 65 because both are A515?

Not without the required engineering and order approval. A common specification family does not remove grade-specific strength and chemistry requirements. Start with the material named for the component; any proposed alternative needs review of the complete requirements, not just a comparison of one test result.

Why does the elongation reference show both 21% and 25%?

The values refer respectively to 8 in. [200 mm] and 2 in. [50 mm] gauge lengths. They are not two alternative limits for an unspecified specimen. The report must identify the actual gauge and specimen basis, with any applicable A20 adjustments, before the result is judged.

Request ASTM A515 Grade 60 plate

Give Gangsteel a clear material line and plate schedule for technical and commercial review.

  • Designation, edition, unit system and dimensions with quantities
  • Required delivery condition and heat/product analysis scope
  • Test requirements, acceptance criteria and certificate arrangement

Supply scope and documentation are confirmed for the particular enquiry. Contact Gangsteel with your enquiry.

ASTM A515GR60 A515 Grade 60 steel plate supplier