GB/T 13320-2007
Replaced
GB/T 45981.1-2025
Active
National standards
GB/T 45981.1-2025 Heavy casting and forging for heavy-duty gas turbine—Part 1:Steel open die forgings
GB/T 45981.1-2025 Heavy casting and forging for heavy-duty gas turbine—Part 1:Steel open die forgings
Price:
$ 62.00
Basic Information
Standard Code:
GB/T 45981.1-2025
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Forging and pressing
ICS Name:
\nSteel forgings
Publish Date:
2025-08-29
Implement Date:
2026-03-01
Pages:
32 pages
Scope
This document specifies the supplier requirements, manufacturing processes, and technical requirements for free-forged parts made from large alloy structural steel and martensitic heat-resistant steel used in heavy-duty gas turbines. It also describes the corresponding test methods, sets out inspection rules, acceptance criteria, quality certificates, and marking and packaging requirements.
This document applies to the manufacture of steel free-forged parts (hereinafter referred to as "forged parts") such as shaft heads, center rods, compressors, and turbine disks for F-class heavy-duty gas turbines.
Development Information
Same series standard
Related Standards
GB/T 20911-2007
Active
GB/T 20911-2007 Semi finished products for forging—Tolerances on dimensions shape and mass
GB/T 21469-2008
Active
GB/T 21469-2008 Machining allowances and tolerances for steel open die forgings on hammer—General requirement
GB/T 21470-2008
Active
GB/T 21470-2008 Machining allowances and tolerances for steel open die forgings on hammer—Disks,columns,rings and seamless cylindrical sleeves
GB/T 21471-2008
Active
GB/T 21471-2008 Machining allowances and tolerances for steel open die forgings on hammer—Shafts
GB/T 22131-2008
Replaced