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DIN 1629 Seamless circular unalloyed steel tubes subject to special requirements
Standard: DIN 1629
Equivalent Standard: EN 10216-1, ASTM A53, BS 3601, NF A 49-112
Material: St44, 1.0256
Equivalent Materials: St45.8, 1020, 410, SA53 Grade B, S 430, TU E 235 A
Chemistry Composition
C, %
P, %
S, %
0.21 max
0.040 max
0.040 max
Mechanical Properties
Tensile Strength , MPa
Yield Strength, MPa
Elongation, %
420-550
275 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
Length: 5800mm; 6000mm; 10000mm; 11800mm; and so on.
Max length: 18000mm
Keyword: seamless steel pipe, seamless steel tube, DIN 1629, EN 10216-1
 
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