AISI 317 Stainless Steel ButtWelded Stub Ends Lap Joints Fitting

ButtWelded Stub Ends Lap Joints fitting, made of AISI 317 Stainless Steel, connects two pipes which have different diameters. AISI 317 stainless steel is used in the manufacture and supply by Rexon Pipe Fittings of these fittings, the top manufacturer and supplier. AISI 317 is a low-carbon, molybdenum containing, austenitic stainless steel with excellent corrosion resistance, particularly in acidic and chloride mediums. The fittings are formed with the purpose of providing gradual bends as a means to minimize turbulence and hence pressure loss, as well as establish a leak proof seal. Moreover, the fittings are installable, maintainable, and replaceable since, with a loose lap joint flange, they can be removed. Rexon Pipe Fittings provides the highest quality, service, and value to its customers, and guarantees the performance and longevity of the products it sells.

Types of SS Buttwelded Pipe Fitting Stub Ends Lap Joints

These fittings are appropriate where high-temperature service is required in chemical processing, petrochemical, and power generation. Rexon Pipe Fittings provides a large selection of these fittings in various shapes, size and specifications that can be modified to meet the customer’s requirements.

Long Pattern Stub End

A Stub End is a type of pipe fitting designed as a single component for welding to another pipe with a long neck and a flared tip. It is a Stainless Steel Buttwelded Long Pattern Stub End.

Short Pattern Stub End

A Stainless Steel Buttwelded Short Pattern Stub End is a welded pipe fitting, which has a short neck and is flared at the end.

Stainless Steel 317 Butt-Welded Stub End Lap Joint Pipe Fittings Specifications

Material: Metallic
Color: Varies
Joining: Welding
Types: Elbows, Tees, Reducers, Caps, Stub Ends
Sizes: Varied
Standards: ASME B16.9, MSS-SP 75, DIN
Pressure Ratings: Application-specific
Corrosion Resistance: Yes
Installation: Welding
Maintenance: Regular

SS Butt-welded Stub Ends Lap Joints Fitting Specifications

The lap joint flange is engineered to be a mirror image of the stub end. It is bored to match the pipe’s outside diameter. The face of a lap joint flange matches that of the stub-end, which is having the same specifications as butt-welded pipe, being equal to AISI 317.

Specifications

ASME SA403 / ASTM A403

Dimension Standard

ASME/ANSI B16.9, MSS-SP-43/SP-79, ASME B16.28, ASME B16.25, ASME B16.49

Standard Size Range

1/2” NB TO 48” NB. (Fabricated, Seamless and 100% X-Ray Welded)

Manufacturing Type

Fabricated / Seamless / Welded / ERW

Bending Radius

R=1D, 2D, 3D, 5D, 6D, 8D, 10D, or Custom

Wall Thickness / Schedule

SCH5, SCH10, SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS / 3mm – 40mm

End Connection

Butt Weld

Melting Point

1400-1450°C for (WP317)

Outside Diameter (OD)

Seamless / Buttweld Fitting ( 1/2″～48″), ERW / Welded / Fabricated Buttweld Fitting (1/2″～48″)

Value Added Services

Hot Dipped Galvanizing, Electro Polish, Sand Blasting, Epoxy & FBE Coating, Threading, Soldering

Other Standards

MSS SP-75, ISO, SNSI, JIS, DIN, GB, DIN2617, JISB2311, JISB2312, JISB2313 / T12459GB / T13401, SH3408, SH3409HG / T21635HG / T21631SY / T05010

Material Test Certificates (MTC)

As per EN 10204 3.2 and EN 10204 3.1, Certifying NACE MR0175, NACE MR0103

Materials

AISI 317

Two Halve / Two Joint Buttweld Fittings Size

6″ to 48″

Manufacturing Specification

ASME: ANSI B16.9, ANSI B16.28, ASME B16.25, MSS-SP-43, DIN: DIN2605, DIN2615, DIN2616, DIN2617, DIN28011, EN: EN10253-1, EN10253-2

A403 SS Seamless Fittings

Size: 15 NB to 300 NB | Sch.& Swg: Sch.5 to Sch.XXs

A403 SS Welded Fittings

Size: 15 NB to 600 NB | Sch.& Swg: Sch.5 to Sch.80s

AISI 317 Buttwelded Stainless Steel Stub End Lab Joint Physical Property

The lap joint flange is crafted to be a mirror image of the stub end. It is bored to match the pipe’s outside diameter. The face of a lap joint flange matches that of the stub-end, which is having the same specifications as butt-welded pipe, being equal to AISI 304.

317 Buttwelded Stainless Steel Stub End Lab Joint fitting Chemical Property

Corrosion resistance is another feature of SS buttweld reduce pipe fittings. These are stainless steel types of materials which enhance the quality of chromium content features, and they are resistant to reducing acids and pitting attacks such as chloride solutions.

Grade

304H

min.

0.04

–

18.0

–

8.0

–

max.

0.10

2.0

0.75

0.045

0.030

20.0

10.5

Price List Of Stainless Steel Stub End Lab Joint Fittings In India

Description

Price In INR (Per Piece)

ASTM A403 WP

2" X SCH 40

325.00

3" X SCH 40

400.00

4" X SCH 40

600.00

6" X SCH 40

1350.00

8" X SCH 40

2400.00

10" X SCH 40

4500.00

Frequently Asked Questions

What is the difference between long radius and short radius elbow fittings?

It is the long radius elbow fittings that have a longer curvature, thus giving smoother fl ow and minimized pressure drop. Short radius elbow fittings provide a smaller curvature radius and hence compactness but can lead to higher pressure drops.

What is the maximum pressure rating for stainless steel butt-welded elbow pipe fittings?

However, the maximum pressure rating relies on material grade, fitting size and design. It is always necessary to follow the manufacturer’s specifications and standards of industry for these particular pressure ratings.

Can stainless steel butt-welded elbow pipe fittings be used in high-temperature applications?

The answer is yes because stainless steel butt-welded elbow pipe fittings can resist high temperatures. The temperature specifications, however, may be dependent on the material grade and its use. It is therefore important to take into account the temperature restrictions from the manufacturer and refer back to industry standards.