ASTM A790, ASME SA790, Duplex Stainless Steel Pipe, Ferritic/Austenitic Stainless Steel Pipe, Seamless Steel Pipe, Stainless Steel Pipe, Steel Pipe, Welded Steel Pipe, Stainless Steel Pipes, Heat Exchanger Tubes, U Bent Tube, Fin Tubes, ASTM A790 UNS S32750, Standard ASTM A790, Heat Exchanger, Shell and Tube Heat Exchanger

ASTM A790/ASME SA790 Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe

Standard: ASTM A790, ASME SA790
Equivalent Standards: DIN 17458, GOST 9941-81, GOST 9940-81, EN 10216-5, ASTM A789, ASME SA789, 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, HBW
800 min	550 min	15 min	300 max

Outside Diameter & Tolerance

ASTM A999	NPS	Outside Diameter, inch	Tolerance, mm
		1/8≤OD≤1-1/2	+0.40/-0.80
		1-1/2＜OD≤4	+0.80/-0.80
		4＜OD≤8	+1.60/-0.80
		8＜OD≤18	+2.40/-0.80
		18＜OD≤26	+3.20/-0.80
		26＜OD≤34	+4.00/-0.80
		34＜OD≤48	+4.80/-0.80

Wall thickness & Tolerance

Seamless and Welded - Except as required by minimum wall thickness, the wall thickness at any point shall not be more than 12.5 % under the nominal wall thickness specified. The minimum wall thickness on inspection is shown in ASTM A999 Table X1.1.
Minimum Wall - If the wall thickness of the pipe is specified as minimum wall in the purchase order, there shall be no variation under the specified wall thickness.

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: ASTM A790, ASME SA790, Duplex Stainless Steel Pipe, Ferritic/Austenitic Stainless Steel Pipe, Seamless Steel Pipe, Stainless Steel Pipe, Steel Pipe, Welded Steel Pipe.

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