WP304L RTJ Lap Joint Stub End DN40 SCH80

Quick Details

• Material: 304L
• Technics: Cold forming
• Type: Stub End
• Place of Origin: Zhejiang, China (Mainland)
• Brand Name: Yaang
• Connection: Welding
• Head Code: Round
• Size: 1 1/2 Inch (DN40)

Packaging & Delivery

Specifications

WP304L STUB END

Size: 1 1/2 Inch (DN40)

Thk: SCH80

Material: 304L

China STUB END Manufacturer Yaang offers WP304L RTJ Lap Joint Stub End, DN40, SCH80.

Composition ranges for 304L grade stainless steel

Grade		C	Mn	Si	P	S	Cr	Mo	Ni	N
304	min. max.	- 0.08	- 2.0	- 0.75	- 0.045	- 0.030	18.0 20.0	-	8.0 10.5	- 0.10
304L	min. max.	- 0.030	- 2.0	- 0.75	- 0.045	- 0.030	18.0 20.0	-	8.0 12.0	- 0.10
304H	min. max.	0.04 0.10	- 2.0	- 0.75	-0.045	- 0.030	18.0 20.0	-	8.0 10.5	-

Mechanical properties of 304L grade stainless steel

Grade	Tensile Strength (MPa) min	Yield Strength 0.2% Proof (MPa) min	Elongation (% in 50mm) min	Hardness
				Rockwell B (HR B) max	Brinell (HB) max
304	515	205	40	92	201
304L	485	170	40	92	201
304H	515	205	40	92	201
304H also has a requirement for a grain size of ASTM No 7 or coarser.

Physical properties of 304L grade stainless steel in the annealed condition

Grade	Density (kg/m3)	Elastic Modulus (GPa)	Mean Coefficient of Thermal Expansion (μm/m/°C)			Thermal Conductivity (W/m.K)		Specific Heat 0-100°C (J/kg.K)	Electrical Resistivity (nΩ.m)
			0-100°C	0-315°C	0-538°C	at 100°C	at 500°C
304/L/H	8000	193	17.2	17.8	18.4	16.2	21.5	500	720

Grade specifications for 304L grade stainless steel

Grade	UNS No	Old British		Euronorm		Swedish SS	Japanese JIS
		BS	En	No	Name
304	S30400	304S31	58E	1.4301	X5CrNi18-10	2332	SUS 304
304L	S30403	304S11	-	1.4306	X2CrNi19-11	2352	SUS 304L
304H	S30409	304S51	-	1.4948	X6CrNi18-11	-	-
These comparisons are approximate only. The list is intended as a comparison of functionally similar materials not as a schedule of contractual equivalents. If exact equivalents are needed original specifications must be consulted.

WP304L Stub End

What are they?

WP304L Stub Ends are fittings used in place of welded flanges where rotating back up flanges are desired.

They are also called Lap Joints and Vanstone Flared Laps.

How do they work?

A rotating back up flange seats itself against the back surface of the Stub End. When bolts are added, the clamping action of the bolts presses the rotating back up flange against the back of the Stub End. The gasket surface of the Stub End then presses against a gasket and another gasket surface providing joints like standard flange joints. The seal is made by the gasket surface of the stub end alone, the flange only provides the clamping pressure on the joint.

Why?

Since Stub Ends are made from material compatible with the designed piping system, back up flanges do not have to be made from the same material. The flange can be made from less expensive material because it never comes in contact with the process fluid.

WP304L Stub Ends' Types
WP304L Stub Ends are typically manufactured by two methods. Type A & B Stub Ends are made similar to forged fittings such as Elbows and Flanges. Type C Stub Ends are made by forming pipe to the desired dimensions.
WP304L Stub Ends are available in two standard lengths, MSS and ANSI.
WP304L Stub Ends are normally provided with a standard weld bevel
WP304L Stub Ends dimensions are found on our fitting dimensions page.

Type "A" - Type "B" - Type "C" - Type "CS"

Where can we find the high quality WP304L STUB END DN40 SCH80.

You can visit this website: www.yaang.com (Yaang Pipe Industry Co., Limited).

If any inquiry, please feel free to contact by email [email protected]