Advisory Desk / Codes and Standards
BS EN PUBLICATIONS
BS EN 560:2018
Gas welding equipment. Hose
connections for equipment for
welding, cutting and allied processes
Supersedes BS EN 560:2005
BS EN IEC 60974-1:2018
Arc welding equipment. Welding
power sources
Supersedes BS EN 60974-1:2012
BS EN IEC 62822-1:2018
Electric welding equipment.
Assessment of restrictions related to
human exposure to electromagnetic
fields (0 Hz to 300 GHz). Product
family standard
Supersedes BS EN 50445:2008
BS EN ISO 2401:2018
Welding consumables. Covered
electrodes. Determination of the
efficiency, metal recovery and
deposition coefficient
Supersedes BS EN 22401:1994
BS EN ISO 3690:2018
Welding and allied processes.
Determination of hydrogen content
in arc weld metal
Supersedes BS EN ISO 3690:2012
BS EN ISO 4042:2018
Fasteners. Electroplated coating
systems
Supersedes BS EN ISO 4042:2000
BS EN ISO 7539-6:2018
Corrosion of metals and alloys.
Stress corrosion testing. Preparation
and use of precracked specimens
The SCI Advisory Desk
sometimes receives
questions about the
potential to use full depth
stiffeners to restrain
lateral torsional buckling,
suggesting that the stiffeners
prevent relative movement
of the compression and
tension flanges. Whilst this
is true, lateral torsional
buckling is a displacement
and twist of the complete
section, which stiffeners
alone do nothing to prevent.
The American Institute of
Steel Construction notes
that “transverse stiffeners are
30 NSC
January 19
for tests under constant load or
constant displacement
Supersedes BS EN ISO 7539-6:2011
BS EN ISO 8249:2018
Welding. Determination of Ferrite
Number (FN) in austenitic and
duplex ferritic-austenitic Cr-Ni
stainless steel weld metals
Supersedes BS EN ISO 8249:2000
BS EN ISO 10683:2018
Fasteners. Non-electrolytically
applied zinc flake coating systems
Supersedes BS EN ISO 10683:2014
BS EN ISO 11124:2018
Preparation of steel substrates
before application of paints and
related products. Specifications for
metallic blast-cleaning abrasives
Part 1: General introduction and
classification
Part 2: Chilled-iron grit
Part 4: Low-carbon cast-steel shot
Supersedes BS EN ISO 11124-1, 2 &
4:1997
BS EN ISO 11125:2018
Preparation of steel substrates
before application of paints and
related products. Test methods for
metallic blast-cleaning abrasives.
Part 2: Determination of particle size
distribution
Part 3: Determination of hardness
Part 4: Determination of apparent
density
Part 5: Determination of percentage
defective particles and of
microstructure
simply along for the ride” as
the sketch indicates.
Contact: Richard Henderson
Tel: 01344 636525
Email: advisory
@steel-sci.com
Part 6: Determination of foreign
matter
Supersedes BS EN ISO 11125-2, 3, 4, 5
& 6:1997
BS EN ISO 11126:2018
Preparation of steel substrates
before application of paints and
related products. Specifications
for non-metallic blast-cleaning
abrasives.
Part 1: General introduction and
classification
Part 3: Copper refinery slag
Part 4: Coal furnace slag
Part 8: Olivine
Supersedes BS EN ISO 11126-1, 3, 4 &
8:1997/8
BS EN ISO 11699-2:2018
Non-destructive testing. Industrial
radiographic films. Control of film
processing by means of reference
values
Supersedes BS EN ISO 11699-2:2011
BS EN ISO 18275:2018
Welding consumables. Covered
electrodes for manual metal arc
welding of high-strength steels.
Classification
Supersedes BS EN ISO 18275:2012
PUBLISHED DOCUMENTS
PD CEN/TR 10261:2018
Iron and steel. European standards
for the determination of chemical
composition
Supersedes PD CEN/TR 10261:2013
PD CEN/TR 17079:2018
Design of fastenings for use in
concrete. Redundant non-structural
systems
No current standard is superseded
PD CEN/TR 17080:2018
Design of fastenings for use
in concrete. Anchor channels.
Supplementary rules
No current standard is superseded
PD CEN/TR 17081:2018
Design of fastenings for use in
concrete. Plastic design of fastenings
with headed and post-installed
fasteners
No current standard is superseded
NEW WORK STARTED
BS EN 1993-1-5:2006/A
Eurocode 3. Design of steel
structures. Plated structural
elements
BS ISO 630-4
Structural steels. Technical delivery
conditions for high-yield-strength
quenched and tempered structural
steel plates
BS ISO 7788
Steel. Surface finish of hot-rolled
plates and wide flats. Delivery
requirements
BS ISO 11971
Steel and iron castings. Visual testing
of surface quality
Will supersede BS ISO 11971:2008
New and revised codes & standards
From BSI Updates November 2018
AD 425:
Full depth stiffeners
and lateral torsional
buckling
AD 426:
Bolt head protrusion
through nuts and
threads in grip lengths
To ensure that bolt threads are fully
engaged in the nut, BS EN 1090-2 clause
8.2.2 specifies that the protrusion must
be at least one thread pitch. This is
because the very end of the bolt may
be slightly convex, leading to a reduced
resistance if threads are not fully
effective.
The same clause specifies the
necessary numbers of threads within
the grip length (between bolt head
and the nut). For non-preloaded bolts,
one full thread is required – to ensure
the nut can be properly tightened. For
preloaded bolts according to BS EN
14399-3 (HR system, generally used in
the UK in preference to the HV system)
or according to BS EN 14399-10 (HRC
system, commonly known as a ‘tension
control bolt’), a minimum of four threads
within the tensioned length is specified.
The reason for the threads in the
tensioned length is to encourage ductile
behaviour – AD 268 (which related to
the BS 5950 requirements) reproduces
a figure from Owens and Cheal
(Butterworths), showing significantly
more elongation when there are
more threads in the tensioned length.
Incidentally, BS 5950-2 required three
and five threads in the tensioned length,
for class 8.8 and 10.9 bolts respectively.
Contact: Richard Henderson
Tel: 01344 636525
Email: advisory@steel-sci.com
/Member_design#Lateral_torsional_buckling_resistance
/Stiffeners
/Preloaded_bolting
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