Stainless Steel Pipe Spools

The Stainless Steel Pipe Spool is a relatively short component, consisting of a pre-determined length of pipe welded to a specified pipe fitting (tee, elbow or reducer) or valve (gate or ball). The flange is usually welded to each end of the pipe.

Due to the excellent corrosion resistance of stainless steel, the pipeline is not easy to rust, damage or accumulate debris by wear. Electrical steel has low maintenance costs. And due to its corrosion resistance, it is unlikely that stainless steel pipes will need to be replaced for decades.

The stainless steel pipe spool is of prefabricated length for easy use of Tri-Clamp fittings. These pipes will construct a process line in conjunction with other Tri-Clamp fittings, clamps and gaskets, eliminating the need to weld and produce on-site, and saving time significantly.

Boomarine is a leading supplier of marine equipment in China, and we always believe in serving customers with the highest quality products. We provide complete piping solutions. We have a dedicated design, engineering and manufacturing team that can provide first-class pipe spools. As a one-stop solution provider, we do our best to meet all the pipeline requirements of our customers.

Stainless Steel Pipe Spools Specifications:

Grade	ASTM A403 WP Gr. 304, 304L, 304H, 309, 310, 316, 316L, 316Ti, 317L, 321, 347, 347H, 904L
Standard	ASTM, ASME and ANSI
Size	0.5″ to 24″
Schedule/Wall Thickness	10s/3 mm to XXS/70 mm

Stainless Steel Pipe Spools Features:

• Welding method: Plasma welding.
• Inspection: PT or RT & Pressure Test.
• Destructive and nondestructive examination of welds.
• Custom made as per provided drawings.

Custom Pipe Spools Main Stainless Steel Materials:

Specifications:

Material & Grade	Stainless Steel ASTM A403 WP Gr. 304, 304H, 309, 310, 316, 316L, 317L, 321, 347, 904L
Dimension	ASME B16.9, ANSI B16.9, ASME B16.28, ANSI B16.28, ANSI B16.25

Equivalent Grades:

STANDARD	WERKSTOFF NR.	UNS	JIS	BS	GOST	AFNOR	EN
SS 304	1.4301	S30400	SUS 304	304S31	08?18?10	Z7CN18?09	X5CrNi18-10
SS 304L	1.4306/1.4307	S30403	SUS 304L	304S11	03?18?11	Z3CN18?10	X2CrNi18-9 / X2CrNi19-11

Chemical Composition:

Element	Ni	C	Mn	P	S	Si	Cr
SS 304	8.0 – 11.0	0.08	2.0 max	0.045 max	0.03 max	1.0 max	18.0 – 20.0
SS 304L	8.0 – 13.0	0.35	2.0 max	0.045 max	0.03 max	1.0 max	18.0 – 20.0

Mechanical & Physical Properties:

Element	Density	Melting Point	Tensile Strength	Yield Strength (0.2%Offset)	Elongation
SS 304	8.0 g/cm3	1400 °C (2550 °F)	Psi – 75000 , MPa – 515	Psi – 30000 , MPa – 205	35 %
SS 304L	8.0 g/cm3	1400 °C (2550 °F)	Psi – 75000 , MPa – 515	Psi – 30000 , MPa – 205	35 %

Fabricated Pipe Spool Parts

• Reducer – Concentric reducer, eccentric reducer
• Pipes – Seamless/Welded
• Tee – Equal Tee, Unequal Tee
• Flanges – Blind, weld neck, slip-on, etc.
• Elbow – 90° / 45° / 180°

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