The ASME B16.9 Standard covers tolerances, welded fittings pressure rating, overall dimensions, testing, as well as markings for wrought grade butt-welded fittings manufactured in a factory. Welded fittings produced according to the ASME B16.9 standard are available across the world in the size ranging between NPS 1/2 through NPS 48 Carbon Steel Weld fittings are about 20% lower ASME working pressures in comparison to a seamless type of fitting, even though the material used to produce and the size of both kinds of constructed fittings are the same. This is because the welded fittings dimensions will have a seam, unlike the seamlessly constructed fittings, which have no seams.
ASME B16.9 Welded Fittings
Stainless Steel Welded Fittings
Carbon Steel Welded Fittings
Seamless buttweld fittings have no seam welds and are therefore considered superior to welded BW fittings (a weld is always a weak point on the metal, prone to corrosion). ASME B16.9 Welded fittings are manufactured by processing seamless pipes into desired forms. The processing of these fittings is done by cutting, heating, followed by shaping them. Typically a Welded fitting could either have one, two or more welds. The number of welds on these Stainless Steel Welded fittings would be dependent on the dimension, in addition to the kind of fitting to be produces as well as the manufacturing process that has been adopted by the mill.
Specifications | Welded Fittings |
---|---|
Welded Fittings Pipe Fittings size | Seamless Butt Weld Fittings: 1/2″ – 10″ Welded Butt Weld Fittings: 1/2″ – 48″ |
Welded Fittings Dimensions | ASME/ANSI B16.9, ASME B16.28, MSS-SP-43, BS4504, BS4504, BS1560, BS10 |
Welded Fittings Thickness | SCH10, SCH20, SCH30, STD SCH40, SCH60, XS, SCH 80, SCH 100, SCH 120, SCH 140, SCH 160, XXS available with NACE MR 01-75 |
Welded Fittings Types | Seamless / ERW / Welded / Fabricated Pipe Fittings |
Welded FittingsType | DN15-DN1200 |
Connection | Welding |
Bending Radius | R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom Pipe Fittings |
Size Range | ½” NB to 24″ NB in Sch 10s, 40s, 80s, 160s, XXS. (DN6~DN100) |
Welded Fittings Fittings | Angle : 22.5 deg, 30deg, 45 deg, 90 deg, 180 deg, 1.0D, 1.5D, 2.0D, 2.5D, 3D, 4D, 5D, 6D, 7D-40D. Standard: ASME B16.9, ASME B16.28, ASME B16.25, MSS SP-75 DIN2605 JISB2311 JISB2312 JISB2313, BS, GB, ISO |
Manufacturing process | Push, Press, forge, Cast, etc. |
Welded Fittings Fittings Test Certificates | EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc |
Origin & Mills | Japanese, Indian, USA, Korean, European, Ukraine, Russian |
Key markets and industries for Welded Fittings |
|
Class 150 | 4″ | FNPT | 304 Stainless Steel | 300 psi | $141.84 / each |
Class 3000 | 1/8″ | FNPT | 304 Stainless Steel | 2570 psi@100 Degrees F | $20.08 / each |
Class 3000 | 1/8″ | FNPT | 316 Stainless Steel | 3000 psi@100 Degrees F | $71.07 / each |
Class 3000 | 1/4″ | FNPT | 304 Stainless Steel | 2570 psi@100 Degrees F | $20.45 / each |
Class 3000 | 1/4″ | FNPT | 316 Stainless Steel | 3000 psi@100 Degrees F | $28.22 / each |
Class 3000 | 3/8″ | FNPT | 304 Stainless Steel | 2570 psi@100 Degrees F | $21.12 / each |
Class 3000 | 3/8″ | FNPT | 316 Stainless Steel | 3000 psi@100 Degrees F | $39.45 / each |
Class 3000 | 1/2″ | FNPT | 304/304L Stainless Steel | 3000 psi @ 100 Degrees F | $60.51 / each |
Standards: | ANSI – B 16.9ASTM A403 – ASME SA403 – ‘Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings’
API 590-605 ASME B16.9 – ‘Factory-Made Wrought Buttwelding Fittings” ASME B16.25 – ‘Buttwelding Ends’ ASME B16.28 – ‘Wrought Steel Buttwelding Short Radius Elbows and Returns’ MSS SP-43 – ‘Wrought and Fabricated Butt-Welding Fittings for Low Pressure, Corrosion Resistant Applications’ |
Schedule: | Sch 5 TO Sch XXS. |
Sizes: | 1/2” TO 36”(SEAMLESS UPTO 24”)
(WELDED 8” TO 36” ) |
Materials: | Monel, Nickel, Inconel, Hastalloy, Titanium, Tantalum, Stainless Steel, Alloy Steel, Carbon Steel, Cupro-Nickel 90/10 & 70/30Stainless Steel ASME / ASTM SA / A403 SA / A 774 WP-S, WP-W, WP-WX, 304, 304L, 316, 316L, 304/304L, 316/316L, DIN 1.4301, DIN1.4306, DIN 1.4401, DIN 1.4404 |
Type: | Butt Weld (BW) |
Thickness: | Schedule 5S, 10S, 20S, S10, S20, S30, STD, 40S, S40, S60, XS, 80S, S80, S100, S120, S140, S160, XXS and etc. |
Dimension: | ANSI B16.9, ANSI B16.28, MSS-SP-43 Type A, MSS-SP-43 Type B, JIS B2312, JIS B2313 |