Carbon Steel Pipes
DIN 1629 St37
DIN 1629 St44
DIN 1629 St52
Product

 

 

 

 

 


Home | About Us | Product | Know How | Contact Us
   
DIN 1629 Seamless circular unalloyed steel tubes subject to special requirements
Standard: DIN 1629
Equivalent Standard: EN 10216-1, ASTM A252, BS 4360, NF A 49-311
Material: St52, 1.0421
Equivalent Materials: E355, SA252 Grade 3, 50 B, TU 52-b
Chemistry Composition
C, %
Si, %
Mn, %
P, %
S, %
0.22 max
0.55 max
1.60 max
0.040 max
0.035 max
Mechanical Properties
Tensile Strength , MPa
Yield Strength, MPa
Elongation, %
500-650
355 min
21 min
Outside Diameter & Tolerance
Outside Diameter, mm
Tolerance, %
OD≤100
±1
100<OD≤200
±1
OD>200
±1
Wall thickness & Tolerance
Outside Diameter , mm
Wall Thickness, mm
Tolerance, %
OD≤130
WT≤2*S(DIN 2448)
+15/-10
2*S(DIN 2448)<WT≤4*S(DIN 2448)
+12.5/-10
WT>4*S(DIN 2448)
±9
130<OD≤320
WT≤0.05*OD
+17.5/-12.5
0.05*OD<WT≤0.11*OD
±12.5
WT>0.11*OD
±10
320<OD≤660
WT≤0.05*OD
+20/-15
0.05*OD<WT≤0.09*OD
+15/-12.5
WT>0.09*OD
+12.5/-10
DIN 1629 applies to seamless circular tubes and pipes made of unalloyed steels St37 (1.0254), St44 (1.0256), St52 (1.0421). These tubes are predominantly used in the construction of chemical plant, vessel, pipework and for general mechanical engineering purpose. The maximum permissible working temperature are 300°C. The maximum permissible working pressure is according to the wall thickness and outside diameter. In Europe, it is replaced by EN 10216-1.
Manufacture: tubes shall be made by the seamless process and shall be cold drawn or hot rolled.
Heat Treatment: tubes manufactured by hot forming shall be supplied in the hot formed condition, to meet with mechanical and technological properties, the requirement for normalizing should be done if necessary. Cold rolled or cold drawn tubes shall be normalized after forming and supplied.
Inspection & Test: tensile test, flattening test, flaring test, NDT, surface inspection and dimension check.
Length: 5800mm; 6000mm; 10000mm; 11800mm; and so on.
Max length: 18000mm
Keyword: seamless steel pipe, seamless steel tube, DIN 1629, EN 10216-1
 
Home | About Us | Product | Know How | Contact Us
Copyright © TubeMFG. Powered by TubeSolution