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Credibility ,
Material: 317L (EN 1.4438/UNS S31703)
Technics: Cold forming
Type: Stub End
Place of Origin: Zhejiang, China (Mainland)
Brand Name: Tanell
Connection: Welding
Head Code: Round
Size: 4 Inch (100NB)
| Packaging Details: | fumigation free plywood cases or as per customers' requests |
|---|---|
| Delivery Detail: | Delivery after receiving deposit |
ASME B16.9 ASTM A403 317L Stub End 4 Inch SCH40S
Size: 4 Inch (80NB)
Thk: SCH40S
Material: 317L (EN 1.4438/UNS S31703)
China STUB END Manufacturer Tanell offers ASME B16.9 ASTM A403 317L Stub End 4 Inch SCH40S.
Improved general and localized corrosion to 316L stainless
Good formability
Good weldability
Flue-gas desulfurization systems
Chemical process vessels
Petrochemical
Pulp and Paper
Condensers in power generation
| % | Cr | Ni | C | Si | Mn | P | S | Mo | Fe |
|---|---|---|---|---|---|---|---|---|---|
| 317L | min: 18.0 max:20.0 | min: 11.0 max: 15.0 | 0.035 max | 0.75 max | 2.0 max | 0.04 max | 0.03 max | min: 3 max: 4 | balance |
| Grade | Tensile Strength ksi (min.) | Yield Strength 0.2% Offset ksi (min.) | Elongation - % in 50 mm (min.) | Hardness (Brinell) MAX | Hardness (Rockwell B) MAX |
|---|---|---|---|---|---|
| 317L | 75 | 30 | 40 | 217 | 95 |
| Denstiy lbm/in3 | Coefficient of Thermal Expansion (min/in)-°F | Electrical Resistivity mW-in | Thermal Conductivity BTU/hr-ft-°F | Specific Heat BTU/lbm -°F | ||
|---|---|---|---|---|---|---|
| at 68 °F | at 77 – 212°F | at 77 – 932°F | at 77 – 1832°F | at 68 – 1832°F | at 32 – 212°F | |
| 0.29 | 9.2 | 10.1 | 10.8 | 31.1 | 14.6 | 0.11 |
Type | 317L Stub End |
Standard | ASME B16.9, MSS SP-43, HG205099, HG20621, GB/T12459-2005, GB/T13401, SH3408-96,etc. |
Size | 1/2"-48"(DN15-DN600) |
Wall thickness | SCH5S-SCH40S |
Type | Type A, Type B,Type C |
Surface treatment | Lathe finish&Abrasive blasting |
Stainless steel | 304, 304L,304H, 316, 316L,317L,310S, 321,321H,347H,316Ti |
Duplex steel | 2205, etc |
Super duplex steel | 2507, etc |
Dimensions of Lap Joint Stub End Inch as per ASME B16.9
| NPS | ODMax | ODMin | LPF | SPF | R | G |
| 1/2 | 22.8 | 20.5 | 76 | 51 | 3 | 35 |
| 3/4 | 28.1 | 25.9 | 76 | 51 | 3 | 43 |
| 1 | 35.0 | 32.6 | 102 | 51 | 3 | 51 |
| 1-1/4 | 43.6 | 41.4 | 102 | 51 | 5 | 64 |
| 11/2 | 49.9 | 47.5 | 102 | 51 | 6 | 73 |
| 2 | 62.4 | 59.5 | 152 | 64 | 8 | 92 |
| 2-1/2 | 75.3 | 72.2 | 152 | 64 | 8 | 105 |
| 3 | 91.3 | 88.1 | 152 | 64 | 10 | 127 |
| 3-1/2 | 104.0 | 100.8 | 152 | 76 | 10 | 140 |
| 4 | 116.7 | 113.5 | 152 | 76 | 11 | 157 |
| 5 | 144.3 | 140.5 | 203 | 76 | 11 | 186 |
| 6 | 171.3 | 167.5 | 203 | 89 | 13 | 216 |
| 8 | 222.1 | 218.3 | 203 | 102 | 13 | 270 |
| 10 | 277.2 | 272.3 | 254 | 127 | 13 | 324 |
| 12 | 328.0 | 323.1 | 254 | 152 | 13 | 381 |
| NPS | ODMax | ODMin | LPF | SPF | R | G |
| 14 | 359.9 | 354.8 | 305 | 152 | 13 | 413 |
| 16 | 411.0 | 405.6 | 305 | 152 | 13 | 470 |
| 18 | 462.0 | 456.0 | 305 | 152 | 13 | 533 |
| 20 | 514.0 | 507.0 | 305 | 152 | 13 | 584 |
| 22 | 565.0 | 558.0 | 305 | 152 | 13 | 641 |
| 24 | 616.0 | 609.0 | 305 | 152 | 13 | 692 |
(a) All dimensions are in millimeters.
(b) See Table 13 for tolerances.
(c) Service conditions and joint construction often dictate stub end length requirements. Therefore, the purchaser must specify long or
short pattern fitting when ordering.
(1) Gasket face finish shall be in accordance with ASME B16.5 for raised face flanges.
(2) The lap thickness T shall not be less than nominal pipe wall thickness. See Table 13 for maximum tolerance.
(3) When short pattern stub ends are used with larger flanges in Classes 300 and 600, with most sizes in Classes 900 and higher, and
when long pattern stub ends are used with larger flanges in Classes 1500 and 2500, it may be necessary to increase the length of the
stub ends in order to avoid covering the weld with the flange. Such increases in length shall be a matter of agreement between the
manufacturer and purchaser.
(4) When special facings such as tongue and groove, male and female, etc., are employed, additional lap thickness must be provided and
such additional thickness shall be in addition to (not included in) the basic length F.
(5) These dimensions conform to the radius established for lap joint flanges in ASME B16.5.
(6) This dimension conforms to standard machined facings shown in ASME B16.5. The back face of the lap shall be machined to conform
to the surface on which it seats. Where ring joint facings are to be applied, use dimension K as given in ASME B16.5.
DIMENSIONAL TOLERANCES OF STUB ENDS ASME B16.9
| Nominal Pipe Size | 1/2 up to 2.1/2 | 3 to 3.1/2 | 4 | 5 to 8 | 10 to 18 | 20 to 24 |
| Outside Diameter at Welding End (OD) | + 1.6 - 0.8 | 1.6 | 1.6 | + 2.29 - 1.6 | + 4.06 - 3.05 | + 6.35 - 4.83 |
| Overall Length (F) | 1.6 | 1.6 | 1.6 | 1.6 | 2 | 2 |
| Outside Diameter of Lap (G) | + 0 - 0.76 | + 0 - 0.76 | + 0 - 0.76 | + 0 - 0.76 | + 0 - 1.6 | + 0 - 1.6 |
| Thickness of Lap (T) | + 1.52 - 0 | + 1.52 - 0 | + 1.52 - 0 | + 1.52 - 0 | + 1.52 - 0 | + 1.52 - 0 |
| Fillet Radius of Lap (R) | + 0 - 0.76 | + 0 - 0.76 | + 0 - 1.6 | + 0 - 1.6 | + 0 - 1.6 | + 0 - 1.6 |
| Wall Thickness (t) | Not less than 87.5% of Nominal Wall Thickness | |||||
Dimensional tolerances are in millimeters unless otherwise indicated.
317L Stub End
What are they?
317L 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.
317L Stub Ends' TypesType "A" - Type "B" - Type "C" - Type "CS"
Where can we find the high quality ASME B16.9 ASTM A403 317L Stub End 4 Inch SCH40S.
You can visit this website: tanell.net（Zhejiang Tanell Pipes&Fitting Co., Ltd）
Tel：+86-577-85982258 / Email:tan@tanell.com
Address：NO.568-D Three Street Three Road,Binhai Wenzhou Zhejiang
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Tanell is an company that operates in the supplying market for Oil and Gas plant, Chemical industry, Energy and Water since 1981.
