GB/T 13320-2007
Active
GB/T 20911-2007
Active
National standards
GB/T 20911-2007 Semi finished products for forging—Tolerances on dimensions shape and mass
GB/T 20911-2007 Semi finished products for forging—Tolerances on dimensions shape and mass
Basic Information
Standard Code:
GB/T 20911-2007
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Forging and pressing
ICS Name:
\nSteel forgings
Publish Date:
2007-04-18
Implement Date:
2007-11-01
Pages:
6 pages
Scope
This standard specifies the dimensions, shapes, and quality tolerances of semi-finished products that are hot-formed by forging, namely steel ingots (Blooms), slabs (Slabs), and billets (Billet) made from the following materials: — General-purpose steels in accordance with EN 10250-1~4 (see reference) — Pressure-use steels in accordance with EN 10222-1~5 (see reference) This standard does not include semi-finished products that require free forging in EN 10243-1 (see reference).
Development Information
Referenced Standards
EN 10079:1992
Related Standards
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
GB/T 22131-2008 Practice for ultrasonic examination from bored surfaces of cylindrical forgings
GB/T 25135-2010
Active