ASTM A234 WP5,ASTM A234 WP9,ASTM A234 WP11,ASTM A234 WP12,ASTM A234 WP22,ASTM A234 WP91 Pipe Fittings
ASTM A234 WP5,ASTM A234 WP9,ASTM A234 /WP11,ASTM A234 WP12,ASTM A234 WP22,ASTM A234 WP91 Pipe Fittings.
Elbow, Reducer, Tee, Cross, Cap, Bend
Materials
The material for fittings shall consist of killed steel, forgings, bars, plates, seamless or fusion-welded tubular products with filler metal added and shall conform to the chemical requirements of Table 1. Unless otherwise specified for carbon steel plates, the steel may be made to either coarse grain or fine grain practice.
ASTM A234 WP5 Buttweld Fittings
ASTM A234 Elbows
ASTM A234 Long Radius Elbow
ASTM A234 Short Radius Elbow
ASTM A234 90 Deg Elbow
ASTM A234 45 Deg Elbow
ASTM A234 180 Deg Elbow
ASTM A234 1D Elbow
ASTM A234 3D Elbow
ASTM A234 5D Elbow
ASTM A234 Tee
ASTM A234 Equal Tee
ASTM A234 Reducing Tee
ASTM A234 Reducer
ASTM A234 Concentric Reducer
ASTM A234 Eccentric Reducer
ASTM A234 End Cap
ASTM A234 Cap
ASTM A234 Stubend
ASTM A234 Long Stubend
ASTM A234 Short Stubend
ASTM A234 Nipple
ASTM A234 Swage Nipple
ASTM A234 Barrel Nipple
ASTM A234 Reducing Nipple
ASTM A234 Bend
ASTM A234 Long Radius Bend
ASTM A234 Piggable Bend
|
B., |
|||||||||||
Grade |
Carbon |
Managa nese |
Posphoru s, max |
Sulfur. max |
Silicon |
Chromiu m |
Molybdenu m |
Nickel |
Copper |
Others |
||
WPB |
0.30 max |
0.29-1.0 |
0.050 |
0.058 |
0.10 min |
0.40 max |
0.15 max |
0.40 |
0.40 max |
Vanadium 0.08 max; Columbium 0.02 |
|
|
6 |
|
|
|
|
|
max |
|
max |
WPC |
0.35 max |
0.29-1.0 9 |
0.050 |
0.058 |
0.10 min |
0.40 max |
0.15 max |
0.40 max |
0.40 max |
Vanadium 0.08 max; Columbium 0.02 max |
WP1 |
0.28 max |
0.30-0.9 0 |
0.045 |
0.045 |
0.10-0.5 0 |
|
0.44-0.65 |
|
|
|
WP12 CLI; WP12 CL2 |
0.05-0.2 0 |
0.30-0.8 0 |
0.045 |
0.045 |
0.60 max |
0.80-1.2 5 |
0.44-0.65 |
|
|
|
WP11 CL1 |
0.05-0.1 5 |
0.30-0.6 0 |
0.030 |
0.030 |
0.50-1.0 0 |
1.00-1.5 0 |
0.44-0.65 |
|
|
|
WP11 CL2;WP1 1 CL3 |
0.05-0.2 0 |
0.30-0.8 0 |
0.040 |
0.040 |
0.50-1.0 0 |
1.00-1.5 0 |
0.44-0.65 |
|
|
|
WP22 CL1; WP22 CL3 |
0.05-0.1 5 |
0.30-0.6 0 |
0.040 |
0.040 |
0.50 max |
1.90-2.6 0 |
0.87-1.13 |
|
|
|
WP5 CL1; WP5 CL3 |
0.15 max |
0.30-0.6 0 |
0.040 |
0.030 |
0.5 max |
4.0-6.0 |
0.44-0.65 |
|
|
|
WP9 CL1;WP9 CL3 |
0.15 max |
0.30-0.6 0 |
0.030 |
0.030 |
1.00 max |
8.0-10.0 |
0.90-1.10 |
|
|
|
WPR |
0.20 max |
0.40-1.0 6 |
0.045 |
0.050 |
|
|
|
1.60-2.2 4 |
0.75-1.2 5 |
|
Grade WP9 shall be made to fine grain practice.
A starting material specification that specifically requires the addition of any element beyond those listed for the materials in Table 1 for the applicable grade of material is not permitted. This does not preclude the use of deoxidizers or the judicious use of elements for grain size control.
Manufacture
Forging or shaping operations may be performed by hammering, pressing, piercing, extruding, upsetting, rolling, bending, fusion welding, machining, or by a combination of two or more of these operations. The forming procedure shall be so applied that it will not produce injurious imperfections in the fittings.
WP91 |
0.08-0.1 2 |
0.30-0.6 0 |
0.020 |
0.010 |
0.20-0.5 0 |
8.0-9.5 |
0.85-1.05 |
0.40 max |
|
Vanadium 0.18-0.25; Columbium 0.06-0.10; nitrogen 0.03-0.07; Aluminum 0.04 max |
WP911 |
0.09-0.1 3 |
0.30-0.6 0 |
0.020 |
0.010 |
0.10-0.5 0 |
8.5-10.5 |
0.90-1.10 |
0.40 max |
|
Vanadium 0.18-0.25; Columbium 0.060-0.10; Nitrogen 0.04-0.09; Aluminum 0.04 max; Boron 0.0003-0.006; Tungsten 0.90-1.10 |
This specification covers wrought carbon steel and alloy steel fittings of seamless and welded construction covered by the latest revision of ASME B16.9, B16.11, MSS-SP-79, MSS-SP-83, and MSS-SP-95. These fittings are for use in pressure piping and in pressure vessel fabrication for service at moderate and elevated temperatures. Fittings differing from these ASME and MSS Standards shall be furnished in accordance with Supplementary Requirement S58 of Specification A 960/A 960M.
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