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SA516 Gr.65 steel plate

Pressure Vessel & Boiler Plate · pressure-vessel plate for reactor and column shells, heat-exchanger shells, boiler and steam drums, LPG and ammonia storage spheres, and hydrotreater vessels

StandardASME SA-516/SA-516M
Nearest equivalentEN 10028-2 P295GH
Thickness range6 – 200 mm (grade dependent)
CertificateEN 10204 3.1 / 3.2

What ASME SA-516/SA-516M covers

1.1 This specification covers carbon steel plates intended primarily for service in welded pressure vessels where improved notch toughness is important. 1.2 Plates under this specification are available in four grades having different strength levels as follows: Grade Strength Levels Grade U.S. [SI] Tensile Strength, ksi [MPa] 55 [380]55–75 [380–515] 60 [415]60–80 [415–550] 65 [450]65–85 [450–585] 70 [485]70–90 [485–620] 1.3 The maximum thickness of plates is limited only by the capacity of the composition to meet…

Specification text excerpt, reproduced for reference. Read the full ASME SA-516/SA-516M text →

Chemical composition — SA516 Gr.65

ElementsGrade 65 [Grade 450]
Carbon, maxCarbon, max
Carbon, max.A,B / ½ in. [12.5 mm] and under0.24
Carbon, max.A,B / Over ½ in. to 2 in. [12.5 to 50 mm], incl0.26
Carbon, max.A,B / Over 2 in. to 4 in. [50 to 100 mm], incl0.28
Carbon, max.A,B / Over 4 to 8 in. [100 to 200 mm], incl0.29
Carbon, max.A,B / Over 8 in. [200 mm]0.29
Manganese:C / ½ in. [12.5 mm] and under: / Heat analysis0.85–1.20
Manganese:C / ½ in. [12.5 mm] and under: / Product analysis0.79–1.30
Manganese:C / Over ½ in. [12.5 mm]: / Heat analysis0.85–1.20
Manganese:C / Over ½ in. [12.5 mm]: / Product analysis0.79–1.30
Phosphorus, max0.025
Sulfur, max0.025
Silicon: / Heat analysis0.15–0.40
Silicon: / Product analysis0.13–0.45

Limits as specified in ASME SA-516/SA-516M. Where the standard sets different values by thickness or product analysis, each band is shown separately.

Mechanical properties — SA516 Gr.65

Property65 [450]
Tensile strength, ksi [MPa]65–85 [450–585]
Yield strength, min.A ksi [MPa]35 [240]
Elongation in 8 in. [200 mm], min, %B19
Elongation in 2 in. [50 mm], min, %B23

Mechanical requirements for the thickness ranges shown. Impact testing is carried out at the temperature specified for the grade.

Typical applications

SA516 Gr.65 is normally specified for reactor and column shells, heat-exchanger shells, boiler and steam drums, LPG and ammonia storage spheres, and hydrotreater vessels.

We supply it cut to size by plasma, laser or waterjet, with edges machined or flame-cut to your drawing, and can deliver in the heat-treatment condition your fabrication procedure requires.

Two vessel heads cut from pressure-vessel steel plate and wrapped for export
Vessel heads cut to drawing from pressure-vessel quality plate, wrapped and strapped for sea freight.

Delivery condition

Supplied in the heat-treatment condition the standard requires for the grade — as-rolled, normalized, normalized and tempered, or quenched and tempered. Simulated post-weld heat treatment can be carried out and reported before shipment.

Available forms and services

  • Plate 6 – 200 mm thick, width to 4 000 mm, length to 14 000 mm
  • CNC plasma, flame and laser cutting from your DXF / DWG drawing
  • Normalizing, quenching and tempering, and PWHT simulation
  • Edge bevelling, drilling, rolling to diameter on request

Inspection and certification

Mill test certificate to EN 10204 3.1 / 3.2; Ultrasonic testing to EN 10160 (S1–S3) or ASTM A578; HIC to NACE TM0284 and SSC to NACE TM0177; Simulated post-weld heat treatment (PWHT) on request; Third-party inspection by SGS, BV, TÜV or Intertek

Seaworthy packing — bottom skids, steel strapping, VCI film and edge protection — is standard for sea freight. Container loading plans with piece weights are issued before shipment.

About the equivalent grades. SA516 Gr.65 is nearest to EN 10028-2 P295GH. These designations sit at a comparable strength and toughness level, but chemistry limits, impact temperatures and permissible thickness ranges differ between standards. Treat the comparison as a starting point for engineering review, not as a declaration of interchangeability.
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