Name: EN 10031:2003
Brand: CEN

Semi-finished products for forging - Tolerances on dimensions shape and mass

Published date

12-03-2003

Publisher

Comite Europeen de Normalisation

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Appearance and soundness
   4.1 General
   4.2 Removal of surface defects
5 Tolerances on dimensions
   5.1 Tolerances on sides of the cross-section
       5.1.1 Rectangular semi-finished products
       5.1.2 Square or circular semi-finished products
   5.2 Diagonal tolerances
   5.3 Length tolerances
       5.3.1 Delivery in standard lengths
       5.3.2 Delivery in fixed lengths
6 Shape tolerances
   6.1 Straightness
   6.2 Twist
7 Tolerances on mass
   7.1 Tolerances on mass per unit length
       7.1.1 Case of billets
       7.1.2 Case of blooms and slabs
   7.2 Tolerance on batch quantities
Bibliography

This European Standard specifies the tolerances on dimensions, shape and mass for semi-finished products intended to undergo hot forming by forging, i.e. blooms, slabs and billets made of:- general purpose steels, in accordance with EN 10250-1 to 4;- steels for pressure purposes, in accordance with EN 10222-1 to 5.It does not cover semi-finished products intended for drop forging which are covered by EN 10243-1.

Committee	CEN/TC 459/SC 11
DevelopmentNote	Supersedes EURONORM 31. (04/2003)
DocumentType	Standard
PublisherName	Comite Europeen de Normalisation
Status	Current

Standards	Relationship
UNI EN 10031 : 2003	Identical
NS EN 10031 : 1ED 2003	Identical
NF EN 10031 : 2003	Identical
SN EN 10031 : 2003	Identical
PN EN 10031 : 2003	Identical
I.S. EN 10031:2003	Identical
BS EN 10031:2003	Identical
UNE-EN 10031:2005	Identical
NEN EN 10031 : 2003	Identical
NBN EN 10031 : 2003	Identical
DIN EN 10031:2003-06	Identical

EN 10079:2007	Definition of steel products
EN 10243-1:1999/AC:2005	STEEL DIE FORGINGS - TOLERANCES ON DIMENSIONS - PART 1: DROP AND VERTICAL PRESS FORGINGS
EN 10222-3:2017	Steel forgings for pressure purposes - Part 3: Nickel steels with specified low temperature properties
EN 10222-5:2017	Steel forgings for pressure purposes - Part 5: Martensitic, austenitic and austenitic-ferritic stainless steels
EN 10250-4:1999	Open die steel forgings for general engineering purposes - Part 4: Stainless steels
EN 10250-1:1999	Open die steel forgings for general engineering purposes - Part 1: General requirements
EN 10250-2:1999	Open die steel forgings for general engineering purposes - Part 2: Non-alloy quality and special steels
EN 10222-4:2017	Steel forgings for pressure purposes - Part 4: Weldable fine grain steels with high proof strength
EN 10222-2:2017	Steel forgings for pressure purposes - Part 2: Ferritic and martensitic steels with specified elevated temperatures properties
EN 10250-3:1999	Open die steel forgings for general engineering purposes - Part 3: Alloy special steels
EN 10222-1:2017	Steel forgings for pressure purposes - Part 1: General requirements for open die forgings