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U-type sections

Millions of tonnes of U-shaped sheet piles have been used all over the world for all kind of structures for more than 100years. The advantages of U-shaped piles are multiple:
  • wide range of sections,
  • excellent statical properties,
  • great aptitude for re-use and driving into compact soils, especially the sections with reinforced shoulders (PU22,...)
  • very good installation quality and performance.
ArcelorMittal supplies 3 types of sheet piles from the mills in Belval (Luxembourg) and Dabrowa (Poland):
  • AU™ : 750mm wide piles (Belval),
  • PU® : 600mm wide piles (Belval),
  • GU®-N : 400 and 600mm wide piles (Dabrowa).
All our U-type sheet piles have the proven Larssen interlock.

U-type sheet piles are usually supplied as double piles, with the common interlock crimped (several patterns are available), or welded (more expensive). Triple piles are usually supplied with one common interlock crimped and the second one (partially) welded.

According to European design standards (EN 1993-5): reduction factors may have to be applied to the section properties of double / triple U-piles (with crimped and/or welded interlocks), but for single piles (including double / triple piles without crimped / welded interlocks), reduction factors have to be applied.

Note: PU®, GU® are registered trademarks of ArcelorMittal, AU™ is a trademark of ArcerlorMittal.
Last modified: April 3, 2019

AU™ sections

Section Dimensions A Gsp Gw Iy Wel,y Sy Wpl,y
b h t s
mm mm mm mm cm2/m kg/m kg/m2 cm4/m cm3/m cm3/m cm3/m
AU 1475040810.08.313277.910428 6801 4058201 663
AU 1675041111.59.314786.311532 8501 6009351 891
AU 1875044110.59.115088.511839 3001 7801 0302 082
AU 2075044412.010.016596.912944 4402 0001 1552 339
AU 2375044713.09.5173102.113650 7002 2701 2852 600
AU 2575045014.510.2188110.414756 2402 5001 4202 866

PU® sections
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Section Dimensions A Gsp Gw Iy Wel,y Sy Wpl,y
b h t s
mm mm mm mm cm2/m kg/m kg/m2 cm4/m cm3/m cm3/m cm3/m
PU 126003609.89.014066.111021 6001 2007151 457
PU 12S60036010.010.015171.011822 6601 2607551 543
PU 18‑160043010.28.415472.612135 9501 6709801 988
PU 1860043011.29.016376.912838 6501 8001 0552 134
PU 18+160043012.29.517281.113541 3201 9201 1252 280
PU 22‑160045011.19.017481.913746 3802 0601 1952 422
PU 2260045012.19.518386.114449 4602 2001 2752 580
PU 22+160045013.110.019290.415152 5102 3351 3552 735
PU 28‑160045214.29.720797.416260 5802 6801 5253 087
PU 2860045415.210.1216101.817064 4602 8401 6203 269
PU 28+160045616.210.5226106.217768 3803 0001 7103 450
PU 32‑160045218.510.6233109.918369 2103 0651 7453 525
PU 3260045219.511.0242114.119072 3203 2001 8253 687
PU 32+160045220.511.4251118.419775 4103 3401 9053 845

GU® sections
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Section Dimensions A Gsp Gw Iy Wel,y Sy Wpl,y
b h t s
mm mm mm mm cm2/m kg/m kg/m2 cm4/m cm3/m cm3/m cm3/m
GU 6N6003096.06.08941.9709 670625375765
GU 7N6003106.56.49444.17410 450675400825
GU 7S6003117.26.99846.37711 540740440900
GU 7HWS6003127.36.910147.47911 620745445910
GU 8N6003127.57.110348.58112 010770460935
GU 8S6003138.07.510850.88512 800820490995
GU 10N6003169.06.811855.89315 7009905651 160
GU 11N60031810.07.412860.210017 4501 0956301 280
GU 12N60032011.08.013764.610819 2201 2006901 400
GU 13N6004189.07.412759.910026 5901 2707551 535
GU 14N60042010.08.013664.310729 4101 4008301 685
GU 15N60042211.08.614668.711532 2601 5309101 840
GU 16N60043010.28.415472.612135 9501 6709801 988
GU 18N60043011.29.016376.912838 6501 8001 0552 134
GU 20N60043012.29.517281.113541 3201 9201 1252 280
GU 21N60045011.19.017481.913746 3802 0601 1952 422
GU 22N60045012.19.518386.114449 4602 2001 2752 580
GU 23N60045013.110.019290.415152 5102 3351 3552 735
GU 27N60045214.29.720797.416260 5802 6801 5253 087
GU 28N60045415.210.1216101.817064 4602 8401 6203 269
GU 30N60045616.210.5226106.217768 3803 0001 7103 450
GU 31N60045218.510.6233109.918369 2103 0651 7453 525
GU 32N60045219.511.0242114.119072 3203 2001 8253 687
GU 33N60045220.511.4251118.419775 4103 3401 9053 845
GU 16‑40040029012.79.419762.015522 5801 5608851 815
GU 18‑40040029215.09.722169.317326 0901 7851 0152 080


b Width of a single pile
h Height of the wall
t Thickness of the flange
s Thickness of the web
A Cross sectional steel area
Gsp Mass per single pile
Gw Mass per m of wall
Iy Moment of inertia about the main neutral axis y-y
Wel,y Elastic section modulus
Sy Static moment
Wpl,y Plastic section modulus