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GOST 8734-75 10
GOST 8734-75 10G2
GOST 8734-75 20
GOST 8734-75 35
GOST 8734-75 45
GOST 8734-75 15ChM
GOST 8734-75 20Ch
GOST 8734-75 40Ch
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GOST 8734-75 Seamless cold-formed steel pipes
Standard: GOST 8734-75
Equivalent Standards: DIN 1629, EN 10216-1
Material: 45
Equivalent Materials: 1045
Chemistry Composition
C, %
Si, %
Mn, %
P, %
S, %
Cr, %
Ni, %
Cu, %
0.42-0.45
0.17-0.37
0.50-0.80
0.035 max
0.040 max
0.25 max
0.30 max
0.30 max
Mechanical Properties
Tensile Strength , MPa
Yield Strength, MPa
Elongation, %
589 min
323 min
14 min
Outside Diameter & Tolerance
Outside Diameter, mm
Tolerance, mm
5≤OD≤10
±0.15
10<OD≤30
±0.30
30<OD≤50
±0.40
OD>50
±0.8%
Wall thickness & Tolerance
Wall Thickness , mm
Tolerance, %
WT≤1
±0.12mm
1<WT≤5
±10
WT>5
±8
1<WT≤2.5, OD>110
±12.5
Length: 4000mm; 8030mm; 8050mm; 12010mm; 12030mm; 12050mm; and so on.
Max length: 16000mm
Keyword: seamless steel pipe, seamless steel tube, GOST 8734-75, DIN 1629, EN 10216-1, ГОСТ 8734-75
 
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