ASTM A234 WP11 Pipe fittings, Tee, Cap, Elbow

ASTM A234 WP11 Pipe fittings

ASTM A234 Standard

ASTM A234 is a material specification of butt-welding pipe fittings, and WP11 is a steel grade in this standard. The ASTM A234 WP11 Fittings are used for pressure piping in moderate and high temperature services. The A234 WP11 Material has elements like carbon, manganese, phosphorus, Sulphur, etc., in its chemical composition, we provide the wide variety steel pipe fittings like end pipe cap, tee, reducer, stub-ends, elbow, cross and alloy steel.

ASTM A234 WP11 material dataDownload

It comes in different dimensions such as MSS-SP-43, ASME B16.28 as well as ANSI or ASME. Sizes of these pipe fittings are also available in different ranges 1/8 NB to 48 NB (fabricated, seamless and 100 percent x-ray). Fabricated, seamless as well as welded are the types of these pipe fittings. Its bending radius is such as 1D, 3D, 4D, 2D, 5D and customized according to customer’s needs. When it comes to the product wall thickness, then it is totally customized. Although, you can buy it in the readymade form in different thickness, but if you are in need of extra thickness you can extend.

ASTM A234 WP11 Pipe fittings — ASTM A234 WP11 Tee DN400 SCH 100 Dimension Measurement

Key Elements – Chromium and Moly

ASTM A234 WP11 (ASME SA234 WP11) is Chrome Moly Pipe Fittings standard specification for high temperature services. WP11 Pipe Fittings Chrome content at 1.00% to 1.50%, Moly content 0.44% to 0.65%, Minimum tensile strength 415MPa, minimum yield strength 205Mpa. It covers the butt-welded pipe fittings of Elbow, Tee, Reducer, Cap and Cross, and some socket welding, threaded pipe fittings, raw material from ASTM A335 P11. ASTM A234 WP11 Pipe fittings

Chromium is a key component that is used in the manufacture of stainless steel. If the chromium levels are above 12%, it can be classified as stainless steel. The oxidation resistance potential of chrome is irreplaceable even in elevated temperatures. The hardness, tensile and yield strength is better at standard temperatures. Due to the composition of the material, it is ideal to be used in power plants, refineries, petro-chemical plants and other oil field services when there is transportation under high temperatures and pressures involved.

Moly ensures that the material is more resistant to softening, restrains the growth of grains and lessens the chances of embrittlement. It is the single additive that is responsible for the increase in high temperature resistance (to 540-750°C) and it also improves the corrosion resistance to steel.

Manufacturing Methods For SA 234 WP11 Material

The ASTM A234 Gr WP11 Pipe Fittings are manufactured through the wrought process, which means the fittings are cast or forged. Most of the fittings made of WP11 Material are manufactured from plates, but the larger ones are commonly manufactured in pieces and welded together. ASTM A234 WP11 Pipe fittings

The A234 WP11 Fittings Manufacturing Methods (manufacturing is called “wrought”) which means it is forged and casted.
Usually, caps are made from plate and tee, reducer, elbow are made from steel pipe.
But the large sizes and large diameter fittings are Usually manufactured in welded or pieces together.

Corresponding Material

Seamless Pipe Standard: ASTM A335 P11 / ASME SA335 P11
Flange Standard: ASTM A182 F11
Steel Plate Standard: ASTM A387 Grade 11/ ASME SA387 Grade 11
Welded pipe standard: ASTM A691 1-1/4 CR

Materials and Manufacturing

The raw material for making ASTM A234 WP11 fittings hall be fully killed, consisting of forgings, bars, plates, sheet, and seamless or fusion-welded pipe products with filler metal added and shall conform to the chemical requirements of Table. Unless specified for carbon steel plates or sheet, the steel may be made to either coarse grain or fine grain practice. Which ASTM A234 WP9 shall be made to fine grain practice.

Forgings or forming operations could be perfomred by hammering, pressing, piercing, upseting, rolling, extruding, bending, fusion welding, machining, or by a combination of two or more above operations. Which the point of manufacturing is not to produce injurious imperfections in the fittings.

How To Use The A234 WP11 Fittings?

ASTM A234 WP11 pipe fittings are butt weldingends, commonly used to be welded with theASTM A335 P11 pipe.SA234 WP11 is lowcontent alloy steel,the hardness is higher thanthe carbon steel material,it have a goodstrength in the piping system,it is leak proofand strong.

HC DN400 SCH 100 L=6M BE ASTM A335 P11 SMLS PIPE

A234 WP11 Alloy Steel Fitttings Applications

Food Processing
Pharmaceuticals Industry
Pharmaceuticals Application
Energy Industry
Power Plant
Gas Processing
Petrochemical Industry
Chemical Industry
Oil and Gas Industry

A234 WP11 Chemical Composition

ASTM A234 WP11	CL1	CL 2	CL3
Phosporus	0.03	0.04	0.04
Carbon	0.05–0.15	0.05–0.20	0.05–0.20
Nickel	–	–	–
Sulfur	0.03	0.04	0.04
Molybdenum	0.44–0.65	0.44–0.65	0.44–0.65
Copper	–	–	–
Silicon	0.50–1.00	0.50–1.00	0.50–1.00
Chromium	1.00–1.50	1.00–1.50	1.00–1.50
Manganese	0.30–0.60	0.30–0.80	0.30–0.80

A234 WP11 Material Yield Requirements

Requirements	ASTM A234 Grade WP11 Class 1	ASTM A234 WP11 CL2	A234 WP11 CL3
Yield,strength, minimum MPa (ksi) (0.2% offset or 0.5% extension under-load)	205 (30)	275 (40)	310 (45)

Elongation of A234 WP11 fittings

Requirements	ASTM A234 WP11
–	Longitundinal	Transverse
Small proportional specimen or standard round specimen, minimum percentage in 4D	22	14
Rectangular speicmen for thickness 5/16 inch. and thicker, as well as for all sizes tested in full section; minimum percentage in 2 inches	30	20 A
Rectangular speicimen for thickness less than 5/16 inches; minimum % in 2 in (1/2 inches wide specimen)	B	B

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