Stainless Steel Pipes
Heat Exchanger Tubes
GOST 9941-81 04Ch18N10
GOST 9941-81 08Ch18N10
GOST 9941-81 08Ch18N10T
GOST 9941-81 08Ch18N12B
GOST 9941-81 08Ch18N12T
GOST 9941-81 10Ch17N13M2T
GOST 9941-81 10Ch23N18
GOST 9941-81 12Ch18N10T
GOST 9941-81 12Ch18N12T
GOST 9941-81 12Ch18N9
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GOST 9941-81 Seamless cold and warm-deformed tubes made from corrosion-resistant steel
Standard: GOST 9941-81
Equivalent Standards: DIN 17456, GOST 9941-81, ASME SA213, ASTM A213, EN 10216-5, DIN 17458
Material: 12Ch18N9
Equivalent Material: X5CrNi18-10, 1.4301, TP304, S30400, TP304H, S30409
Chemistry Composition
C, %
Si, %
Mn, %
P, %
S, %
Cr, %
Ni, %
0.12 max
0.80 max
2.00 max
0.02 max
0.035 max
17.0-19.0
8.0-10.0
Mechanical Properties
Tensile Strength , MPa
Yield Strength, MPa
Elongation, %
549 min
-
37 min
Outside Diameter & Tolerance
Outside Diameter , mm
Tolerance
Normal
High
Higher
5≤OD≤10
±0.3mm
±0.2mm
±0.15mm
10<OD≤30
±0.4mm
±0.3mm
±0.2mm
30<OD≤95
±1.2%
±1.0%
±0.8%
OD>95
±1.0%
±1.0%
±0.8%
Wall thickness & Tolerance
Wall Thickness , mm
Tolerance
Normal
High
Higher
0.2
±0.05mm
±0.03mm
-
0.3≤WT≤0.4
±0.07mm
±0.05mm
-
0.5≤WT≤0.6
±0.10mm
±0.07mm
-
0.7≤WT≤1
±0.15mm
±0.10mm
-
1<WT≤3
+12.5/-15%
±12.5%
+12.5/-10%
3<WT≤7
±12.5%
+12.5/-10%
±10%
WT>7
+12.5/-10%
±10%
-
Length: 5800mm; 6000mm; 8000mm; 10000mm; 11800mm; and so on.
Max length: 18000mm, also U bending can be offered.
Keyword: stainless steel tube, stainless steel pipe, GOST 9941-81
 
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