A forged tube sheet starts as a forged blank at the required diameter and thickness rather than being cut from rolled plate — a product form often specified for large, high-pressure duty where directional grain strength matters. Final size and specification follow the approved drawing.
Size rows below are educational / application-dependent context for forged blanks — not a published NPRO capability envelope. Final diameter and thickness are confirmed against the approved drawing, forging specification and service requirements.
| Structural Principle | Forged blank provides directional grain flow when the forging route is specified — properties follow the applicable forging specification rather than a plate callout |
| Typical Diameter Range | Illustrative / application-dependent — ranges vary by forge practice, material and drawing. Confirm diameter against the approved drawing. |
| Typical Thickness Range | Illustrative / application-dependent — ranges vary by material, pressure class and drawing. Confirm thickness against the approved drawing and code calculation. |
| Process | Open-die forging, commonly sized closer to finished dimensions before machining when that blank route is specified |
| Governing Codes | ASME Section VIII; ASTM forged product specifications where applicable (A965 for austenitic stainless forgings; A182 for piping-component forgings; A350 for carbon/low-alloy piping forgings — confirm family) |
Forging specifications define the material and product form of the blank. They are not interchangeable with plate specifications, and they do not replace TEMA or ASME design requirements for the finished tube sheet.
ASTM A965/A965M (ASME SA-965/SA-965M where applicable) covers austenitic stainless-steel forgings. F-grade designations identify the alloy within that forging specification. The first explicit NPRO discovery path:
ASTM A965 / SA-965 → F347 → SS347 / UNS S34700 → forged blank → CNC drilling → RFQ
See SS347 / F347 specification, the Standards hub material-spec section, and specification-driven CNC drilling.
Verified sibling F-grades (A965 austenitic forging path when specified — not a universal tube-sheet standard):
ASTM B564 covers nickel-alloy forgings (including alloys such as N04400 and N06625 where listed). Use it when the blank is a forging — not as a substitute for plate specifications such as B127 or B443. Confirm the UNS, condition and Code context on the purchase order.
Forged construction pairs most often with high-pressure structural types and premium alloys.
Related Configurations
Products & Services
Material Grades (Forging Paths)
A965 forging path for UNS S30400
A965 forging path for UNS S30403
A965 forging path for UNS S31600
A965 forging path for UNS S31603
A965 forging path for titanium-stabilized austenitic
A965 forging path for niobium-stabilized austenitic stainless
A965 forging path for UNS S31000 — not SS310S
Premium alloy often specified in forged form for critical service
Forgings are typically specified for large diameters, high pressure classes, or premium alloys where rolled plate is unavailable at the required thickness, or where the applicable code and material specification make a forging path preferable. Allowable-stress benefit is not automatic — confirm on the project calculation and purchase specification.
Yes — the forging process refines grain structure and creates directional grain flow, generally improving strength and toughness compared to the same alloy in plate form, which is reflected in the applicable ASTM forged-product specification.
Meaningfully longer than plate-based construction, since the forging itself is made to order at the forge house before machining begins — confirm your specific timeline with our engineering team early in the project.
Every enquiry is checked against governing code, material compatibility and manufacturing feasibility before a quote is issued. Use our product, material, grade and standards guides to freeze the RFQ — then confirm with engineering.
Send your diameter, material, pressure class and quantity — we'll confirm thickness and price.