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ST52.3 NBK Carbon Steel Tube supplier


A low alloy steel, grade ST52.3 is known to be a high strength material. One of the advantages of using the ST52.3 Tubing is that it is easily welded to other steel grades. Another benefit is its strength properties. The tensile strength for pipes belonging to specification DIN 17121 Grade St52-3 ranges between 490 Mpa to 630 Mpa. Whereas their yield strength is valued at 355 MPa. This low alloyed carbon and manganese containing Dom Welded Din 2393 ST52-3 BK tube is predominantly used in the Fluid Power Industry. The absence of several alloying elements reduces the cost of producing these tubes. The alloy for ST52-3 NBK Tube is known to have extraordinary impact energies. Categorised as a non-alloy, the grade ST52.3 is intended for use at elevated temperature. Apart from techniques such as stress-relieving heat treatment or normalizing, the use of any form of heat treatment is not recommended on the DIN 17100 ST52.3.


ST52.3 Tubing

 

Standard  DIN 2393 covers precision welded tubes produced from alloys like ST 52.3 BKS. this high precision tube is well suited for several applications like  Auto and motorcycle shock absorber, Electric industry, Construction machinery, Gas spring, Hydraulic system steel tube,  Heat exchanger as well as for Condenser. These industries prefer the use of DIN 2393 Grade St 52-3 tubes as they have the need for a dimensionally accurate product. In some instances, the St 52.3 DIN 2393 ISO H9 is also used where smaller wall thickness or a reliable surface condition is a mandate.


DIN 2393 ISO H9 ST52.3 hydraulic cylinder tube in custom length



ST52.3 Steel Tubes Specification List

Product Type EN-10025-2 Grade ST52-3 square Tube
Specification OD15*15mm-400*400mm
OD 30*30 – 600*600 mm
Wall Thickness 0.5 – 20 mm
Standard API, ASTM, BS, DIN, GB, JIS
Steel material Q195. Q215, Q235, Q345
Size length 15mm-400mm, WT: 0.313mm
Surface Treatment Bared, Black Painted (varnish coating), Galvanized, With Oiled, 3 PE, FBE, corrosion resistant coating
Section Shape Square and rectangular

Basic types of DIN 17121 Grade St52-3

Check Din 2393 ST52.3 Carbon Steel Seamless Pipe price list ex Mumbai


DIN2391 St52.3 Cold drawn Seamless Steel pipe and tube
DIN2391 St52.3 Cold drawn Seamless Steel pipe and tube
DIN2391 ST52.3 hydraulic cylinder honed tube
DIN2391 ST52.3 hydraulic cylinder honed tube
Seamless carbon steel tube st52.3 tube oil and gas tube
Seamless carbon steel tube st52.3 tube oil and gas tube
St52.3 Seamless Pipe Oil Pipe GI Carbon Steel
St52.3 Seamless Pipe Oil Pipe GI Carbon Steel
DIN2393 St52.3 1.0570 18mm Cold Rolled Welded Steel Pipe
DIN2393 St52.3 1.0570 18mm Cold Rolled Welded Steel Pipe
Cold drawn Seamless Steel Pipe And Tube DIN2391 St52.3
Cold drawn Seamless Steel Pipe And Tube DIN2391 St52.3

ST 52.3 BKS Equivalent material grade

Low alloy and high strength structural steel Dom Welded Din 2393 ST52-3 BK Tube in many sizes

USA Germany
DIN,WNr
Italy
UNI
France
AFNOR
England
BS
Sweden
SS
Poland
PN
Russia
GOST
Austria
ONORM
Gr.65 1.0060
E355
St52
St52-3
E335
Fe510
E335
ES355
TS-47a
TU526
CEW5
CFS5
E335
ERW5NKM
ERW5NZF
1650 MSt6 St6sp St60F

Chemical Material Composition of DIN 17100 ST52.3

C Si Mn P S N Cu CEV
max 0.24 max 0.55 max 1.6 max 0.04 max 0.04 max 0.012 max 0.55 max 0.47

Carbon Steel ST52.3 Grade Seamless Pipe Mechanical Strength

DIN 17100 Grade ST 52.3 BKS & EN 10210-1 Grade St 52-3 Steel material in ready stock

  Minimum yield strength Reh
MPa
Tensile strength Rm
MPa
Minimum elongation – A
Lo = 5,65 * √So (%)
Notch impact test
Steel grade Nominal thickness
mm
Nominal thickness
mm
Nominal thickness
mm
Temperature Min. absorbed energy
  ≤16 >16
≤40
>40
≤63
>63
≤80
>80
≤100
>100
≤125
>3
≤100
>100
≤125
>3
≤40
>40
≤63
>63
≤100
>100
≤125
°C J
ST52-3 355 345 335 325 315 295 470-630 450-600 22 21 20 18 -20 27

Dom Welded Din 2393 ST52-3 BK Dimensions Chart

OD Size Range Wall
Percent
of OD
OD, Inches ID, Inches
Over Under Over Under
Up to 0.499 All 0.004 0.000
0.500-1.699 All 0.005 0.000 0.000 0.005
1.700-2.099 All 0.006 0.000 0.000 0.006
2.100-2.499 All 0.007 0.000 0.000 0.007
2.500-2.899 All 0.008 0.000 0.000 0.008
2.900-3.299 All 0.009 0.000 0.000 0.009
3.300-3.699 All 0.010 0.000 0.000 0.010
3.700-4.099 All 0.011 0.000 0.000 0.011
4.100-4.499 All 0.012 0.000 0.000 0.012
4.500-4.899 All 0.013 0.000 0.000 0.013
4.900-5.299 All 0.014 0.000 0.000 0.014
5.300-5.549 All 0.015 0.000 0.000 0.015
5.500-5.999   Under 6 6 and Over 0.010 0.010 0.010 0.010
0.009 0.009 0.009 0.009
6.000-6.499   Under 6 6 and Over 0.013 0.013 0.013 0.013
0.010 0.010 0.010 0.010
6.500-6.999   Under 6 6 and Over 0.015 0.015 0.015 0.015
0.012 0.012 0.012 0.012
7.000-7.499   Under 6 6 and Over 0.018 0.018 0.018 0.018
0.013 0.013 0.013 0.013
7.500-7.999   Under 6 6 and Over 0.020 0.020 0.020 0.020
0.015 0.015 0.015 0.015
8.000-8.499   Under 6 6 and Over 0.023 0.023 0.023 0.023
0.016 0.016 0.016 0.016
8.500-8.999   Under 6 6 and Over 0.025 0.025 0.025 0.025
0.017 0.017 0.017 0.017
9.000-9.499   Under 6 6 and Over 0.028 0.028 0.028 0.028
0.019 0.019 0.019 0.019
9.500-9.999   Under 6 6 and Over 0.030 0.030 0.030 0.030
0.020 0.020 0.020 0.020
10.000-10.999 All 0.034 0.034 0.034 0.034
11.000-11.999 All 0.035 0.035 0.035 0.035
12.000-12.999 All 0.036 0.036 0.036 0.036
13.000-13.999 All 0.037 0.037 0.037 0.037
14.000-14.999 All 0.038 0.038 0.038 0.038

Wall Thickness Tolerances of DIN 2393 Grade St 52-3

Wall Thickness Outside Diameter, In.a
3/8 to 7/8 incl. Over 7/8 to 1-7/8 incl. Over 1-7/8 to 3-3/4 incl. Over 3-3/4 to 15 incl.
In.a Bwgb Wall Thickness Tolerances, in.,a ±
+ + + +
0.035 20 0.002 0.002 0.002 0.002 0.002 0.002
0.049 18 0.002 0.002 0.002 0.003 0.002 0.003
0.065 16 0.002 0.002 0.002 0.003 0.002 0.003 0.004 0.004
0.083 14 0.002 0.002 0.002 0.003 0.003 0.003 0.004 0.005
0.095 13 0.002 0.002 0.002 0.003 0.003 0.003 0.004 0.005
0.109 12 0.002 0.003 0.002 0.004 0.003 0.003 0.005 0.005
0.120 11 0.003 0.003 0.002 0.004 0.003 0.003 0.005 0.005
0.134 10 0.002 0.004 0.003 0.003 0.005 0.005
0.148 9 0.002 0.004 0.003 0.003 0.005 0.005
0.165 8 0.003 0.004 0.003 0.004 0.005 0.006
0.180 7 0.004 0.004 0.003 0.005 0.006 0.006
0.203 6 0.004 0.005 0.004 0.005 0.006 0.007
0.220 5 0.004 0.006 0.004 0.006 0.007 0.007
0.238 4 0.005 0.006 0.005 0.006 0.007 0.007
0.259 3 0.005 0.006 0.005 0.006 0.007 0.007
0.284 2 0.005 0.006 0.005 0.006 0.007 0.007
0.300 1 0.006 0.006 0.006 0.006 0.008 0.008
0.320   0.007 0.007 0.007 0.007 0.008 0.008
0.344   0.008 0.008 0.008 0.008 0.009 0.009
0.375   0.009 0.009 0.009 0.009
0.400   0.010 0.010 0.010 0.010
0.438   0.011 0.011 0.011 0.011
0.460   0.012 0.012 0.012 0.012
0.480   0.012 0.012 0.012 0.012
0.531   0.013 0.013 0.013 0.013
0.563   0.013 0.013 0.013 0.013
0.580   0.014 0.014 0.014 0.014
0.600   0.015 0.015 0.015 0.015
0.625   0.016 0.016 0.016 0.016
0.650   0.017 0.017 0.017 0.017

Tolerances of St 52.3 DIN 2393 ISO H96

Outside Diameter
Inches (mm)
Additional Ovality Tolerance
Inches (mm)
Up to 2 (50.8), incl. 0.010 (0.25)
 Over 2 to 3 (50.8 to 76.2), incl. 0.015 (0.38)
 Over 3 to 4 (76.2 to 101.6), incl. 0.020 (0.51)
 Over 4 to 5 (101.6 to 127.0), incl. 0.025 (0.64)
 Over 5 to 6 (127.0 to 152.4), incl. 0.030 (0.76)
Over 6 to 7 (152.4 to 177.8), incl. 0.035 (0.89)
 Over 7 to 8 (177.8 to 203.2), incl. 0.040 (1.02)
Over 8 to 9 (203.2 to 228.6), incl. 0.045 (1.14)
 Over 9 to 10 (228.6 to 254.0), incl. 0.050 (1.27)
Over 10 to 11 (254.0 to 279.4), incl. 0.055 (1.40)
Over 11 to 12 (279.4 to 304.8), incl. 0.060 (1.52)
Over 12 to 12.500 (304.8 to 317.5), incl. 0.065 (1.65)