Weld-fittings

SEAMLESS WELDING FITTINGS

INCHES/METRIC

1. True diameter maintained throughout the smooth bore for unrestricted flow. 2. Ends are true and square. 3. Bevels and lands accurately machined for good welding. 4. Clear identification of size, schedule or nominall wall thickness, material and heat code. 5. Full, uniform wall thickness for maximum strength.

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Seamless Welding FittingsIndex
90˚ Elbows Long Radius .................................Page 8 Reducing Tees and Reducers, Concentric and Eccentric ...........Page 16

90˚ Reducing Elbows Long Radius .................................Page 9

Caps ...........................................Page 20

90˚ Elbows Long Radius, Long Tangent .......Page 10

Lap Joint Stub Ends ...................................Page 2190˚ Elbows Short Radius ...............................Page 11

Saddles.......................................Page 22

45˚ Elbows Long Radius ...............................Page 12

Laterals.......................................Page 23

Seamless and Welded Pipe, Dimensions...................................Page 6

180˚ Returns Long Radius Short Radius...............................Page 13Dimensional Tolerances of Fittings ......................................Page 5

Material and Manufacturing Standards .............Page 4

Butt Welding Ends, Design and Dimensions .............Page 24 Straight Tees and Crosses .........................Page 14, 15

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Material and Manufacturing Standards
The manufacture of welding fittings is governed by industry standardsestablished by such associations as 1) the American Society for Testing and Materials (ASTM): 2) the American National Standards Institute (ANSI): 3) the Manufacturer’s Standardization Society of the Valve and Fittings Industry (MSS): 4) the Pipe Fabrication Institute (PFI): and 5) the Canadian Standards Association (CSA). They cover specifications for materials, methods of manufacture, dimensions andquality control procedures. All CCTF welding fittings conform to one or more of these standards.

ASTM STANDARDS
CCTF carbon steel welding fittings are manufactured from seamless steel tubing and furnished in accordance with ASTM Standard A-234, with material specifications in accordance with ASTM A-106, Grade B, for fittings made from pipe; ASTM A-515, Grade 65 or 70, for fittings made from plate.CCTF alloy steel welding fittings are furnished in accordance with ASTM standard A-234, with materials specification including A-335, Grade P1, carbon-molybdenum, and Grade P12, P11, P22, P5, P7; P9 chrome molybdenum, for fittings made from pipe. ASTM A-204 Grade B, carbon molybdenum, and ASTM A-387 Grades 12, 11, 22, 5, 7, 9 chrome molybdenum for fittings made from plate. CCTF welding fittingsare also available in accordance with ASTM specification A-420 covering low-temperature service, down to -150˚F (-101˚C). CCTF stainless steel welding fittings are manufactured and available in the following types: 304, 304L, 316, 316L and 347. They are furnished in accordance with ASTM Standard A-403, with material specifications to ASTM A-312 covering fittings made from pipe, and A-240 forfittings made from plate. Refer to CCTF catalogue “Stainless Steel Welding Fittings.

ANSI, MSS, ASME and CSA Standards
ASME/ANSI and MSS standards govern fitting dimensions and tolerances, ASME/ANSI B16.9 “Wrought Steel Buttwelding Fittings”, si the basic standard. It covers steel butt-welding fittings sizes NPS 1/2 through NPS 48 (DN 15 through DN 1200). Other ASME/ANSI and MSS standards, written tosupplement B16.9, are as follows: ASME/ANSI B16.25: Butt-welding Ends ASME/ANSI B16.28: Butt-welding short radius elbows and returns MSS SP-43: Light-wall stainless steel fittings, NPS 3/4 through NPS 24 (DN 20 through DN 600) MSS SP-75: High Test Wrought Welding Fittings The following codes and ASME/ANSI B31.1: ASME/ANSI B31.3: ASME/ANSI B31.4: ASME/ANSI B31.5: ASME/ANSI B31.8: ANSI/ASME...