iSteel India manufactures and supplies Alloy Steel ASTM A234 WP12 Pipe Fittings from Mumbai for butt weld piping systems operating at elevated temperature. WP12 is a chromium-molybdenum alloy steel, carrying roughly 1% chromium and 0.5% molybdenum, engineered to bridge the gap between carbon steel fittings and higher-alloy grades like WP11 and WP22. In a piping system, these fittings connect, turn, and branch pipe runs through a fully welded joint, so the fitting must carry the same pressure and temperature rating as the pipe it joins. WP12's strength holds up under sustained thermal load without the creep problems that shorten carbon steel service life, and its durability under repeated heating and cooling suits equipment that does not run at one constant temperature.
We produce WP12 fittings as elbows, tees, reducers, caps, crosses, and stub ends, forged and dimensioned to ASTM A234, ASME SA234, and ASME B16.9, with MSS SP-43 covering lightwall variants. Both seamless and welded fittings are available across standard schedules and sizes, giving project engineers a choice based on pressure class, size, and budget without changing the material grade. Seamless construction handles the highest pressure and temperature combinations in a piping class, while welded fittings cover larger diameters economically where seamless is not required by spec. WP12 suits high-pressure and high-temperature piping because its chromium-molybdenum matrix resists both the mechanical creep and the oxidation that shorten carbon steel fitting life under continuous hot service. Petrochemical plants, refineries, power plants, and other process industries specify WP12 fittings for hot piping runs where a fitting failure would shut down production. iSteel India supplies WP12 fittings across the domestic market and exports them to project sites and distributors overseas.
| Alloy Steel A234 WP12 Buttweld Pipe Fittings Specification | |
|---|---|
| Specifications | ASTM A234 / ASME SA234 |
| Dimensions | ASME/ANSI B16.9, ASME B16.28, MSS-SP-43 |
| Size Range | 1/8" NB TO 48" NB. |
| Schedule | SCH 5S , 10S ,10, 20 , 40S , 40 , STD , 60 , 80S , 80 , XS , 100 , 120 , 140 , 160 & XXS. |
| Bending Radius | R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom |
| Type | Seamless & 100% X-Ray Welded, Fabricated |
| ASTM SA234 Alloy Steel WP12 Buttweld Pipe Fittings Chemical Composition | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Grade | C | Mn | Si | S | P | Cr | Mo | |||
| A234 WP12 | ≤0.15 | ≤0.6 | 1.00 | ≤0.03 | ≤0.03 | 8-10 | 0.90-1.10 | |||
| WP12 Alloy Steel Buttweld Fittings Mechanical Properties | |||||
|---|---|---|---|---|---|
| Grade | Tensile Strength (Mpa) | Yield Strength (Mpa) | Elongation % | ||
| A234 WP12 | 380 min | 585 min | ≥30 | ||
MSS SP-43 or MSS SP-79 Alloy Steel A234 WP12 Butt weld Fittings Distributors in Mumbai, A234 WP12 AS Fittings, Alloy Steel A234 WP12 Buttweld Fittings Suppliers in India, Alloy Steel A234 WP12 Large Diameter Butt weld Fittings Wholesalers, ASTM A234 Grade WP12 Wrought Alloy Steel Piping Fittings, Alloy Steel A234 WP12 Seamless Pipe Fitting Traders, Alloy Steel ASME SA234 WP12 Welded Fittings Distributor in India, Alloy Steel A234 WP12 Weldable Elbow Fittings Stockist in Mumbai, ANSI B16.9 / ASME B16.28 Alloy Steel A234 WP12 Industrial Pipe Fittings, Chrome Moly A234 WP12 Pipe Fittings.
| Preview | Product | Matrials | Grade | Other Types |
|---|---|---|---|---|
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Elbow | Alloy Steel, AS, Chrome Moly, | Grade WP12 | Alloy Steel A234 WP12 Elbows, Alloy Steel A234 WP12 45 deg Elbow, Alloy Steel A234 WP12 90° Elbow, AS A234 WP12 Long Radius Elbow, Alloy Steel A234 WP12 Short Radius Elbow, Chrome Moly A234 WP12 90 Deg LR Elbows, ASTM A234 WP12 Reducing Elbow Suppliers in Mumbai, Alloy Steel A234 WP12 45° SR Elbow, Alloy Steel A234 WP12 Seamless Elbow Exporters in India, Alloy Steel A234 WP12 Welded Elbow Stockholders |
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Tee | Alloy Steel, AS, Chrome Moly | Grade WP12 | Alloy Steel A234 WP12 Tees, Alloy Steel A234 WP12 Equal Tee, Chrome Moly A234 WP12 Unequal Tee, Alloy Steel A234 WP12 Reducing Tee, AS A234 WP12 Weldable Tees Manufactures in India, Alloy Steel ASTM A234 WP12 Straight Tee Supplier, Alloy Steel A234 WP12 Seamless Tee, Alloy Steel A234 WP12 Welded Tee Fittings Exporters in Mumbai |
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Reducer | Alloy Steel, AS, Chrome Moly | Grade WP12 | Alloy Steel A234 WP12 Reducers, Alloy Steel A234 WP12 Concentric Reducer, AS A234 WP12 Eccentric Reducer, Chrome Moly A234 WP12 Weldable Reducer Fittings, ASTM A234 Alloy Steel WP12 Seamless Reducer, Alloy Steel A234 WP12 Welded Reducers Manufactures in Mumbai, India |
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Stub End | Alloy Steel, AS, Chrome Moly | Grade WP12 | Alloy Steel A234 WP12 Stub Ends, Alloy Steel A234 WP12 Long Stub End, AS A234 WP12 Short Stubends Manufactures in India, Chrome Moly A234 WP12 Lap Joint Stub End Supplier and Exporter, ASTM A234 Alloy Steel WP12 Weldable Stub end, Alloy Steel A234 WP12 Seamless Stub End Stockists in Mumbai |
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Cap | Alloy Steel, AS, Chrome Moly | Grade WP12 | Alloy Steel A234 WP12 Pipe Cap, Alloy Steel A234 WP12 End Cap, Alloy Steel A234 WP12 Pipe End Cap, AS A234 WP12 Buttweld Caps, Chrome Moly A234 WP12 Weldable End Caps, Alloy Steel A234 WP12 Seamless Cap |
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Pipe Nipples | Alloy Steel, AS, Chrome Moly | Grade WP12 | Alloy Steel A234 WP12 Pipe Nipple, Alloy Steel A234 WP12 Swage Nipple, ASME/ANSI B16.9 MSS-SP-43 Chrome Moly A234 WP12 Reducing Nipple, AS A234 WP12 Barrel Nipple |
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Cross | Alloy Steel, AS, Chrome Moly | Grade WP12 | Buttweld Alloy Steel A234 WP12 Cross Manufactures, Alloy Steel A234 WP12 Equal Cross, AS A234 WP12 Unequal Cross, Chrome Moly A234 WP12 Reducing Cross, ASTM A234 Alloy Steel WP12 Seamless Cross, Alloy Steel A234 WP12 Weldable Cross Fittings. |
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Bend | Alloy Steel, AS, Chrome Moly | Grade WP12 | Alloy Steel A234 WP12 Pipe Bend, Alloy Steel A234 WP12 Long Radius Bend, AS A234 WP12 Piggable Bend, Chrome Moly A234 WP12 Short Radius Bend, Alloy Steel A234 WP12 Long Radius Bends R = 3D, 5D, 6D, 8D, 10D & 20D In 15 Deg, 30 Deg, 60 Deg & 90 Deg And Drawing Based Butt Weld Fitting (Customised), Alloy Steel A234 WP12 U-bends, ASME/ANSI B16.9 MSS-SP-43 Alloy Steel A234 WP12 Seamless Bends, Alloy Steel A234 WP12 Weldable Pipe Bends |
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Collar | Alloy Steel, AS, Chrome Moly | Grade WP12 | Alloy Steel A234 WP12 Buttweld Collar, Alloy Steel A234 WP12 Collar, Chrome Moly A234 WP12 Seamless Collar, AS A234 WP12 Weldable Collar |
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