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Steel Grade

For sheet piling, most widely used steel grade:S235 S275 for cold rolled sheet piles, S355GP, S390GP, S430GP in Europe.In China, Q235B and Q345B are most widely used. In Japan, SY295 and SY390 are most used. For pipe piling, API 5L and EN10219 covers over 80% of all steel grades. Most widely used are S355, S420MH, S460MH in EN10219. In API 5L standard, Grade B, X52, X56, X60.X65, X70 even up to X80 can be used for steel pipe pile. 

/ Steel Grade

Steel Grade

Sheet Pile have been used all over the world for over 100 years.Since there are local steel grade in each country,consequently there are also lots of steel grades for sheet piling.After union of European countries,steel grades in Europe become simple.For sheet piling,most widely used steel grade:S235 S275 for cold rolled sheet piles,S355GP,S390GP,S430GP in Europe.In China,Q235B and Q345B are most widely used. In Japan,SY295 and SY390 are most used.

Steel Grades for Sheet Piling

Mechanical Characteristics Chemical Composition
Material Minimum
Yield
Strength		 Minimum
Tensile
Strength		 Elongation C Si Mn P S
  Mpa Mpa % % % % % %
European Standard EN10249
S235 235 340 26 0.25 - 1.4 0.035 0.035
S275 275 410 22 0.27 - 1.5 0.035 0.035
S355 355 480 22 0.27 0.55 1.6 0.035 0.035
European Standard EN10248
S240GP 240 340 26 0.25 - - 0.055 0.055
S270GP 270 410 24 0.27 - - 0.055 0.055
S320GP 320 440 23 0.27 0.6 1.7 0.055 0.055
S355GP 355 480 22 0.27 0.6 1.7 0.055 0.055
S390GP 390 490 20 0.27 0.6 1.7 0.05 0.05
S430GP 430 510 19 0.27 0.6 1.7 0.05 0.05
S460AP 460 550 17 0.27 0.6 1.7 0.04 0.04
Corrosion Resistant Steel Grade for Marine Usage
Blue320 320 440 23 0.27 0.6 1.7 0.05 0.05
Blue355 355 480 22 0.27 0.6 1.7 0.05 0.05
Blue390 390 490 20 0.27 0.6 1.7 0.05 0.05
America Standard ASTM A572
A36 250 400 21 0.23 0.4 1.5 0.035 0.045
A328 270 485 20 0.2 - - 0.035 -
Grade 42 290 415 24 0.21 1.4 1.35 0.04 0.05
Grade 50 345 450 21 0.23 0.4 1.35 0.04 0.05
Grade 55 380 485 20 0.25 0.4 1.35 0.04 0.05
Grade 60 415 520 18 0.26 0.4 1.35 0.04 0.05
Grade 65 450 550 17 0.23 0.4 1.65 0.04 0.05
A588 345 485 21 0.19 0.3 0.8 0.04 0.05
A690 345 485 21 0.22 0.4 0.6 0.08 0.04
Japan Standard JIS A5523 JIS A5528
SY295 295 490 17 - - - 0.04 0.04
SY390 390 540 15 - - - 0.04 0.04
SYW295 295 490 17 0.18 0.55 1.5 0.04 0.04
SYW390 390 540 15 0.18 0.55 1.5 0.04 0.04
British Standard
40A 235 340 25 0.22 0.5 1.6 0.05 0.05
43A 275 430 23 0.25 0.5 1.6 0.05 0.05
50A 355 490 20 0.23 0.5 1.6 0.05 0.05
Germany Standard
St37-2 235 360 24 0.17 - 1.4 0.045 0.045
St52-3 355 490 20 0.24 0.55 1.6 0.045 0.045
Australia Standard
C250 250 320 22 0.12 0.05 0.5 0.03 0.03
C350 350 430 20 0.2 0.45 1.6 0.03 0.03
C450 450 500 16 0.2 0.45 1.7 0.03 0.03
China Standard
Q235 235 375 38 0.2 0.3 0.7 0.045 0.045
Q345 345 470 21 0.2 0.5 1.7 0.035 0.035
Q390 390 490 20 0.2 0.5 1.7 0.035 0.035
Q420 420 520 19 0.2 0.5 1.7 0.035 0.035
Q460 460 550 17 0.2 0.6 1.8 0.03 0.03
Q500 500 610 17 0.18 0.6 1.8 0.03 0.025
Q550 550 670 16 0.18 0.6 2 0.03 0.025
Q620 620 710 15 0.18 0.6 2 0.03 0.025
Q690 690 770 14 0.18 0.6 2 0.03 0.025

 

For pipe piling,API 5L and EN10219 covers over 80% of all steel grades. Most widely used are S355,S420MH,S460MH in EN10219. In API 5L standard,Grade B,X52,X56,X60.X65,X70 even up to X80 can be used for steel pipe pile

 Steel Grade for Pipe Piling 

Mechanical Characteristics Chemical Composition
Material Minimum
Yield
Strength		 Minimum
Tensile
Strength		 Elongation C Si Mn P S
Mpa Mpa % % % % % %
European Standard EN10219
S235 235 340 22 0.17 - 1.4 0.045 0.045
S275 275 410 20 0.20 - 1.5 0.04 0.04
S355 355 490 20 0.22 0.55 1.6 0.04 0.04
S420MH 420 500 19 0.16 0.50 1.7 0.03 0.03
S460MH 460 530 17 0.16 0.60 1.7 0.03 0.03
American Standard API 5L
Grade B 245 415 23 0.26 0.40 1.2 0.03 0.03
X42 290 415 23 0.26 0.40 1.3 0.03 0.03
X46 320 435 22 0.26 0.40 1.4 0.03 0.03
X52 360 460 21 0.26 0.40 1.4 0.03 0.03
X56 390 490 19 0.26 0.40 1.4 0.03 0.03
X60 415 520 18 0.26 0.40 1.4 0.03 0.03
X65 450 535 19 0.26 0.40 1.45 0.03 0.03
X70 485 570 17 0.26 0.40 1.65 0.03 0.03
X80 555 625 20 0.08 0.26 1.75 0.011 0.0005

 

Normal steel grades for steel tie rod are S235 S355 etc. Higher tensile steel is S500 S700 S830 etc. We can also tailor made higher steel grade,like S1030,S1200 etc with minimum yield strength 1030Mpa,1200Mpa.

Steel Grades for Steel Tie Rod

Steel Grade Normal Diameter
mm		 Min Yield Strength
Mpa		 Min Tensile Strength
Mpa		 Elongation
%
S235 20-300 235 375 26
S355 20-300 355 510 21
S460 20-300 460 610 19
S550 20-300 550 750 17
S650 20-300 650 850 15
S700 20-300 700 900 15
S830 20-300 830 1030 10

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Nanjing Grand Steel Piling Co., Ltd.

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