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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
Material	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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