Stainless Steel Pipes
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ASTM A789 S31500 (SAF1805)
ASTM A789 S31803 (SAF2205)
ASTM A789 S32205 (SAF2205)
ASTM A789 S32750 (SAF2507)
Standard ASTM A789
Heat Exchanger
Shell and Tube Heat Exchanger
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ASTM A789 Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service
Standard: ASTM A789, ASME SA789
Equivalent Standards: DIN 17458, GOST 9941-81, GOST 9940-81, EN 10216-5, ASTM A790, ASME SA790, DIN 17456
Material: S32750
Equivalent Material: X2CrNiMoN25-7-4, 1.4410, SAF2507, F53
Chemistry Composition
C, %
Si, %
Mn, %
P, %
S, %
Cr, %
Ni, %
Mo
N, %
Cu, %
0.03 max
0.8 max
1.2 max
0.035 max
0.02 max
24.0-26.0
6.0-8.0
3.0-5.0
0.24-0.32
0.50 max
Mechanical Properties
Tensile Strength , MPa
Yield Strength, MPa
Elongation, %
Hardness, HB
800 min
550 min
15 min
310 max
Outside Diameter & Tolerance
Hot rolled
Outside Diameter, mm
Tolerance, mm
OD≤101.6
+0.4/-0.8
101.6<OD≤190.5
+0.4/-1.2
190.5<OD≤228.6
+0.4/-1.6
Cold Drawn
Outside Diameter, mm
Tolerance, mm
OD<25.4
±0.10
25.4≤OD≤38.1
±0.15
38.1<OD<50.8
±0.20
50.8≤OD<63.5
±0.25
63.5≤OD<76.2
±0.30
76.2≤OD≤101.6
±0.38
101.6<OD≤190.5
+0.38/-0.64
190.5<OD≤228.6
+0.38/-1.14
Wall thickness & Tolerance
Hot rolled
Outside Diameter, mm
Tolerance, %

OD≤101.6, WT≤2.4

+40/-0
OD≤101.6, 2.4<WT≤3.8
+35/-0
OD≤101.6, 3.8<WT≤4.6
+33/-0
OD≤101.6, WT>4.6
+28/-0
OD>101.6, 2.4<WT≤3.8
+35/-0
OD>101.6, 3.8<WT≤4.6
+33/-0
OD>101.6, WT>4.6
+28/-0
Cold Drawn
Outside Diameter, mm
Tolerance, %
OD≤38.1
+20/-0
OD>38.1
+22/-0
Length: 5800mm; 6000mm; 6096mm; 7315mm; 11800mm; 12000mm; and so on.
Max developed length: 32 meters, also U bending can be offered, each leg length can be 15.24 meters.
Keyword: stainless steel tube, stainless steel pipe, heat exchanger steel tube, ASTM A789
 
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