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Standard Specification For Carbon Steel ASTM A234 WPB Pipe Fittings
Specifications : ASTM A234 / ASME SA234
Dimensions : ASME/ANSI B16.9, ASME B16.28, MSS-SP-43
Size : 1/8” NB TO 48” NB.
Type : Seamless / Welded / Fabricated
Thickness : Sch 5s, Sch 10s, Sch 40s, Sch 80s, Sch 160s, Sch XXS
Carbon Steel ASTM A234 WPB Pipe Fittings
Seamless/ Welded 100% Radiography Tested
| Products |
Size |
| Carbon Steel ASTM A234 WPB Elbow – Long Radius |
Carbon Steel ASTM A234 WPB Stub Ends |
Sizes 1/2″ – 48″ |
| Carbon Steel ASTM A234 WPB Elbow – Short Radius |
Carbon Steel ASTM A234 WPB Cross |
| Carbon Steel ASTM A234 WPB Reducing Elbow |
Carbon Steel ASTM A234 WPB Reducing Cross |
| Carbon Steel ASTM A234 WPB 45° Elbow |
Carbon Steel ASTM A234 WPB Tees |
| Carbon Steel ASTM A234 WPB Fabricated Tee |
Carbon Steel ASTM A234 WPB End Cap |
| Carbon Steel ASTM A234 WPB Reducer |
Carbon Steel ASTM A234 WPB Seamless Fittings |
| Carbon Steel ASTM A234 WPB Concentric Reducer |
Carbon Steel ASTM A234 WPB Pipe Nipple |
| Carbon Steel ASTM A234 WPB Eccentric Reducer |
Carbon Steel ASTM A234 WPB 5D Elbow |
| Carbon Steel ASTM A234 WPB 3D Elbow |
Carbon Steel ASTM A234 WPB Welded Pipe Fittings |
Carbon Steel ASTM A234 WPB Buttweld Fittings Available Types
| Carbon Steel Pipe Fittings |
Carbon Steel WPB Buttweld Pipe Fittings |
| Carbon Steel A234 WPB Seamless Pipe Fittings |
Carbon Steel A234 Welded Pipe Fittings |
| Carbon Steel A234 WPB Pipe Elbow |
Carbon Steel Buttweld Tee |
| Carbon Steel Buttweld Reducer Suppliers |
ANSI WPB Carbon Steel Pipe Fittings |
| Carbon A234 WPB Stubends Dealer |
ASTM A234 WPB Pipe Fittings Exporter |
| Carbon Steel WPB Butt weld Fittings Stockholder |
Steel WPB Pipe End Cap Distributors |
| Carbon Steel WPB 45deg.Elbow |
A234 WPB 90deg. LR Elbow Manufacturer |
| Carbon Steel Grade WPB Pipe Tee |
Carbon Steel ASTM A234 WPB Cross |
| CS WPB Butt weld Reducing Nipple |
Carbon WPB Short Radius Elbow |
| ANSI B16.9 ASTM A234 WPB Buttweld Fitting |
A234 WPB End Pipe Cap Stockist |
| ASTM A234 WPB Welded Pipe Fittings |
Carbon Steel ASME SA234 WPB Pipe Fittings |
ASTM A-234 WPB, WPC
ASME A-234 WPB, WPC
CARBON STEEL ELBOWS LR, SR, BENDS, CROSSES, STUB ENDS, EQUAL TEES, UN-EQUAL TEES, CONCENTRIC REDUCERS, ECCENTRIC REDUCERS, CAPS. MSS-SP 75 WPHY 42, WPHY 46, WPHY 52, WHPY 60, WPHY 65, WPHY 70
HIGH YIELD CARBON STEEL ELBOWS LR, SR, BENDS, CROSSES, STUB ENDS, EQUAL TEES, UN-EQUAL TEES, CONCENTRIC REDUCERS, ECCENTRIC REDUCERS, CAPS. ASTM A-420 WPL6, WPL3
ASME A-420 WPL6, WPL3
LOW TEMPERATURE CARBON STEEL ELBOWS LR, SR, BENDS, CROSSES, STUB ENDS, EQUAL TEES, UN-EQUAL TEES, CONCENTRIC REDUCERS, ECCENTRIC REDUCERS, CAPS. ASTM A-234 WP5, WP9, WP11, WP12, WP22, WP91
ASME A-234 WP5, WP9, WP11, WP12, WP22, WP91
CHROME-MOLY ELBOWS LR, SR, BENDS, CROSSES, STUB ENDS, EQUAL TEES, UN-EQUAL TEES, CONCENTRIC REDUCERS, ECCENTRIC REDUCERS, CAPS. ASTM A-403 WP304, WP304L, WP304H, WP321, WP321H, WP316, WP316L, WP316H, WP347, WP347H, WP309, WP309S, WP310, WP310S STAINLESS STEEL ELBOWS LR, SR, BENDS, CROSSES, STUB ENDS, EQUAL TEES, UN-EQUAL TEES, CONCENTRIC REDUCERS, ECCENTRIC REDUCERS, CAPS. ANSI B16.9
ANSI B16.28
MSS-SP 75
MSS-SP 43
DIN 2605, 2625, 2626, 2617
BS 1640 ASTM A-105
ASTM A181 GR.I, GR.II
CARBON STEEL SLIPON FLANGES, BLIND FLANGES, WELD NECK FLANGES, THREADED & SOCKET WELD FLANGES, LAP JOINT FLANGES ASTM A-182 F304, F304L, F316, F316L, F321, F321H, F347, F347H, F309S, F310S STAINLESS STEEL SLIPON FLANGES, BLIND FLANGES, WELD NECK FLANGES, THREADED & SOCKET WELD FLANGES, LAP JOINT FLANGES ASTM A-182 F5, F9, F11, F12, F22, F91
CHROME-MOLY ALLOY STEEL SLIPON FLANGES, BLIND FLANGES, WELD NECK FLANGES, THREADED & SOCKET WELD FLANGES, LAP JOINT FLANGES ANSI B16.5
MSS-SP 44
API 605
AWWA 207
BS TABLE D, E, F, H, J, K
ASA 150, 300, 600, 900, 1500, 2500 lbs
DIN ND 6, 10, 16, 25, 40 Certificate & Inspection : c/w Calibration Works Certificate EN10204 3.1/DIN 50049 3.1/ISO10474 3.1 Mill Test Report, NACE MR-01-03/NACE MR-01-75/ISO-15156, CE Marked, European Pressure Equipment Directive PED 97/23/EC, AD 2000-WO, ASME Boiler & Pressure Vessel Code Section-II Part-A Edition 2008, API 6A, with 3.2 certificate duly certified & approved by LRS-Lloyd's Register, GL-Germanischer Lloyd, BV-Bureau Veritas, DNV-Det Norske Veritas, ABS-American Bureau of Shipping, SGS, TUV, RINA, IRS, NORSOK APPROVED STANDARD M630, M650 Rev.3
What is Steel pipe fittings
Steel pipe fitting are made of carbon or alloy steel pipe, plates, profiles, to a certain shape that could make a function (Change the fluids direction or rate) in pipeline systems. Mostly these fittings includes steel elbow (45 or 90 degree bend), tee, reducer (concentric or eccentric reducer), cross, caps, nipple, flanges, gasket, studs and etc.
For industrial purposes, in pipeline systems usually we need to change the transmission direction; Adjust fluids (oil and gas, water, slurry) flow rate; Open or close the pipelines, etc. So to complete these activities, steel pipe fittings will be applied.
What is ASTM A234 WPB
ASTM A234 is Standard Specification for steel pipe fittings includes carbon and alloy steel material for moderate and high temperature services. It covers steel fittings of seamless and welded types. Steel Pipe fittings are applied in pressure pipelines and in pressure vessel fabrications. These fittings material consist of killed steel, forgings, bars, plates, seamless or HFW (fusion welded) pipe products, with filler metal added.
ASTM A234 includes wrought carbon steel and alloy steel fittings of seamless and welded construction covered by the latest revision of ASTM B16.9, B16.11, MSS-SP-79, MSS-SP-83, MSS-SP-95, and MSS-SP-97. etc.
As we know, ASTM A234 steel pipe fittings are used in pressure piping and in pressure vessel fabrication, for services at moderate and elevated temperatures. The fittings material in this standard consist of killed steel, forgings, bars, plates, seamless or fusion-welded tubular products with filler metal added.
In this standard it covers the specification of elbows, tees, reducers, caps and cross, it usually adopt butt welding ends.
Grades in ASTM A234
ASTM A234 specification has many grades, such as WPB, WPC, WP5, WP9 WP11, WP12, WP22, WP91 and so on.
In these standard Grade WPB is the most common material used for medium and high temperature pipelines. W means weldable, P means pressure, B is grade b, refer to the minimum yield strength.
The source raw material of ASTM A234 WPB steel pipe fittings may be from steel pipe, such as ASTM A106 Gr.B and C. Also from steel plate, as ASTM A285 Gr.C, ASTM A516 Gr 70, ASTM A572 etc.
ASTM A234 WPB steel pipe fitting chemical and mechanical features
Grade WPB fittings made from the steel pipes or plates maximum C is 0.35%.
Forging fittings Carbon content 0.35% maximum and Silicon content 0.35% maximum, no minimum.
For each reduce of 0.01 of Carbon content, Manganese maximum content increase 0.06%, up to the maximum 1.35% for Mn.
Copper, Nickel, Niobium and Molybdenum sum content shall not exceed 1.00%.
Niobium + Molybdenum shall not exceed 0.32%.
Mechanical properties of ASTM A234 WPB pipe fittings
Tensile Strength 60,000 pis 415 Mpa
Yield Strength 35,000 psi 240 Mpa
Pressures Ratings: 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2000 LBS, 3000 LBS to 9000 LBS.
ASTM A234 includes seamless and welded pipe fittings
For the seamless steel pipe fittings refers to the fittings raw material from the seamless steel pipes and tubes;
Thus the welded steel pipe fittings covers the fittings raw material from welded steel pipes.
It shall be noted that,
ASTM A234 specification does not cover cast welding fittings or fittings machined from castings.
Steel pipe fittings manufacturing forming processes
The manufacturing processes for pipe fittings includes forging and shaping operations. As well as pressing, hammering, piercing, extruding, upsetting, rolling, bending, fusion welding and machining. Or the processes of combination of two or more of these operations.
During the manufacturing steel pipe fittings, below activities shall be noted:
1, Injurious imperfections, welding defects shall be not created.
2, After shaping or forming the fittings in a suitable temperature, it shall be cooled in a appropriate environments to a temperature that below the critical range. And no defects shall be made during the cooling procedures. The cooling rapid shall be not more than in the air.
3, Suitable inspection shall be performed after manufacturing. (Hydrostatic test, hardness test, tensile test etc)
ASTM A234 steel pipe fittings dimensions
Standards: ANSI /ASME B16.9, B16.28, MSS-SP-43.
Outer Diameter Range: 1/2” to 48”
Thickness Range: SCH 10, sch 20, SCH 40, SCH STD, SCH 80, SCH XS, SCH 160, SCH XXS etc.
Steel pipe fittings manufacturing types in forged, threaded, butt weld, and seamless.
Alloy steel pipe fittings grades in ASTM A234
The alloy steel pipe fitting is fabricated with alloy elements in such as Chrome, Molybdenum, Nickel alloy, Hastelloy alloy, Monel, Inconel, and etc. To get a higher pressure ratings, better strength, good corrosive resistance, and longer durability. It is widely used in oil and gas pipelines, chemical industries, power plants, nuclear power sites, and in server conditions.
Alloy steel pipe fittings includes buttweld fittings, alloy steel long radius bend, alloy steel forged fittings and so on.
The alloy steel buttweld fittings adopts ASTM A234 standard, has WP1, WP5, WP11, WP12, WP22,WP23 and WP91 grades. Class level in CL1, CL2, CL3.
ASTM A234 alloy steel pipe fittings includes alloy steel elbows in long and short radius, alloy steel eccentric & concentric reducer, alloy steel caps & crosses, alloy steel couplings, alloy steel tees, alloy steel nipples, alloy steel caps and etc more forms. It has seamless, welded and fabricated types.
For alloy steel forged fittings, it adopts ASTM A182 standard refers to steel pipe flanges. Material standard in ASTM A182 F1, F5, F9, F11 Class 1, F12 Class 1, F22 Class 1 ETC.
Chemical Composition
Grade and Marking Symbol |
Composition, % |
C |
Mn |
P |
S |
Si |
Cr |
Mo |
WPB |
0.30 max |
0.29-1.06 |
0.050 |
0.058 |
0.10 min |
0.40 max |
0.15 max |
WPC |
0.35 max |
0.29-1.06 |
0.050 |
0.058 |
0.10 min |
0.40 max |
0.15 max |
WP1 |
0.28 max |
0.30-0.90 |
0.045 |
0.045 |
0.10-0.50 |
… |
0.44-0.65 |
WP12 CL1, WP12 CL2 |
0.05-0.20 |
0.30-0.80 |
0.045 |
0.045 |
0.60 max |
0.80-1.25 |
0.44-0.65 |
WP11 CL1, |
0.05-0.15 |
0.30-0.60 |
0.030 |
0.030 |
0.50-1.00 |
1.00-1.50 |
0.44-0.65 |
WP11 CL2, WP11 CL3 |
0.05-0.20 |
0.30-0.80 |
0.040 |
0.040 |
0.50-1.00 |
1.00-1.50 |
0.44-0.65 |
WP22 CL1, WP22 CL3 |
0.05-0.15 |
0.30-0.60 |
0.040 |
0.040 |
0.50 max |
1.90-2.60 |
0.87-1.13 |
WP5 CL1, WP5 CL3 |
0.15 max |
0.30-0.60 |
0.040 |
0.030 |
0.50 max |
4.0-6.0 |
0.44-0.65 |
WP9 CL1, WP9 CL3 |
0.15 max |
0.30-0.60 |
0.030 |
0.030 |
1.00 max |
8.0-10.0 |
0.90-1.10 |
WPR |
0.20 max |
0.40-1.06 |
0.045 |
0.050 |
… |
… |
… |
WP91 |
0.08-0.12 |
0.30-0.60 |
0.020 |
0.010 |
0.20-0.50 |
8.0-9.5 |
0.85-1.05 |
WP911 |
0.09-0.13 |
0.30-0.60 |
0.020 |
0.010 |
0.10-0.50 |
8.5-9.5 |
0.90-1.10 |
Tensile Requirements
Grade and Marking Symbol |
WPB |
WPC, WP11 CL1, WP12 CL2 |
WP1 |
WP11 CL1, WP22 CL1, WP5 CL1, WP9 CL1 |
WPR |
WP11 CL3, WP22 CL3, WP2 CL3, WP9 CL3 |
WP91 |
WP911 |
WP12 CL1 |
Tensile strength, range Ksi [MPa] |
60-95
[415-655] |
70-95 [485-655] |
55-80 [380-550] |
60-85
[415-585] |
63-88 [435-605] |
75-100 [520-690] |
85-110 [585-760] |
90-120 [620-840] |
60-85 [415-585] |
Yield strength, min, Ksi [MPa] (0.2% offset or 0.5% extension- under-load) |
35 [240] |
40 [275] |
30 [205] |
30 [205] |
46 [315] |
45 [310] |
60 [415] |
64 [440] |
32 [220] |
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