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Class 3000/ 6000 lb Socket Weld Fittings

Class 3000/ 6000 LB Socket Weld Fittings

Class 3000 Stainless Steel Pipe Fittings Specification

Standards Specification Of : Class 3000/ 6000 LB Socket Weld Fittings
MSS SP-43 Corrosion Resistant for Low Pressure, Fabricated and Wrought Butt-Welding Fittings Applications
ASTM A182 – ASME SA182 Standard for Wrought Austenitic Stainless Steel Piping Fittings
ASME B16.9 Wrought Buttwelding Fittings
ASME B16.11 Socket & Threaded– Welding, Forged Fittings
MSS SP-95 Bull Plugs & Swage(d) Nipples
BS3799 Specification of screwed and Socket-welding, Steel pipe fittings

SS 3000Lb Forged Steel Fittings Dimensions

Nominal Pipe Size Centre to End Elbows, Tee, Crosses A Centre to End 45º Elbows C Outside Diameter of Band H Minimum Wall Thickness G Lengths of Thread Min
2000# 3000# 6000# 2000# 3000# 6000# 2000# 3000# 6000# 2000# 3000# 6000# B L2
1/8 13/16 13/16 31/32 11/16 11/16 3/4 7/8 7/8 1 .125 .125 .250 .25 .2639
1/4 13/16 31/32 1-1/8 11/16 3/4 7/8 7/8 1 1-5/16 .125 .130 .260 .32 .4018
3/8 3/32 1-1/8 1-5/16 3/4 7/8 1 1 1-5/16 1-1/2 .125 .138 .275 .36 .4078
1/2 1-1/8 1-5/16 1-1/2 7/8 1 1-1/8 1-5/16 1-1/2 1-13/16 .125 .161 .321 .43 .5337
3/4 1-5/16 1-1/2 1-3/4 1 1-1/8 1-5/16 1-1/2 1-13/16 2-3/16 .123 .168 .336 .50 .5457
1 1-1/2 1-3/4 2 1-1/8 1-5/16 1-3/8 1-13/16 2-3/16 2-7/16 .145 .196 .391 .58 .6828
1-1/4 1-3/4 2 2-3/8 1-15/16 1-3/8 1-11/16 2-3/16 2-7/16 2-31/32 .153 .208 .417 .67 .7068
1-1/2 2 2-3/8 2-1/2 1-3/8 1-11/16 1-23/32 2-7/16 2-31/32 3-5/16 .158 .218 .436 .70 .7235
2 2-3/8 2-1/2 3-3/4 1-11/16 1-23/32 2-1/16 2-31/32 3-5/16 4 .168 .238 .476 .75 .7565
2-1/2 3 3-1/4 3-3/4 2-1/16 2-1/16 2-1/2 3-5/8 4 4 .221 .301 .602 .932 1.138
3 3-3/8 3-3/4 4-3/16 2-1/2 2-1/2 3-1/8 4-5/16 4-3/4 4-3/4 .236 .327 .655 1.016 1.200
4 3-3/16 4-1/2 4-1/2 3-1/8 3-1/8 3-1/8 5-3/4 5 6 .258 .368 .735 1.094 1.300


Class 6000 Threaded Fittings Temperature Rating

Description Class Designation
Class 3000 Class 6000 Class 9000
Elbows 45 and 90 degrees,
Tees, Crosses, Couplings,
Half-Couplings,
End or Pipe Caps
1/2 - 4 1/2 - 2 1/2 - 2
1/2 - 4 1/2 - 2 1/2 - 2
1/2 - 4 1/2 - 2 1/2 - 2
Pipe Size
by Wall Thickness
SCH 80 / XS SCH 160 XXS