ASTM A234 WPB Carbon Steel Seamless Fittings Elbow Rust Proof Black
Oil Surface
Yuhong Group supply Boiler tube , Heat Exchange Tube, Air Cooling Tube ,
Condenser Tube more than 33 years , and our material grade contain
Stainless Steel , Duplex Steel , Super Duplex Steel , Hastelloy ,
Monel , Inconel , Incoloy , Cr-Mo alloy , Copper alloy steel , and
very year sell more than 80000 tons pipes and tubes to our client
projects. And up to now we already export more than 55 countries.
The pipe and tube was width used in Mining, Energy, Petrochemical,
Chemical Industry, Food plant, Paper plant, Gas and Fluid Industry
etc.
ASTM A234 (ASME SA234) is standard specification of carbon and
alloy steel pipe fittings for moderate and high temperature
services. Common use material are ASTM A234 Grade WPB, WPC, WP5,
WP9, WP11, WP22 and WP91. It covers the butt-welded pipe fittings
of Elbow, Tee, Reducer, Cap and Cross, and some socket welding,
threaded pipe fittings.
Our Supply Range
Grades in Carbon Steel: ASTM A234 Grade WPB, WPC,
Grades in Alloy Steel: ASTM A234 WP1, WP12 CL1/2, WP11 CL1/2/3,
WP12 CL1/3, WP5 CL1/3, WP9 CL1/3, WP91 Type 1/2
Outer Diameters: 1/2'' to 48'' in ASME B16.9
Wall Thickness Schedule: SCH 10, SCH 20, SCH 30, SCH 40, SCH STD,
SCH 80, SCH XS, SCH120, SCH 160, SCH XXS comply with ASME B36.10
Pressure Class: Class 150, 300, 600, 900, 1500, 2500
Manufacturing Standards: ASME B16.9, ASME B16.11, MSS-SP-79,
MSS-SP-83, MSS-SP-95, MSS-SP-97.
What is the difference of material WP5,WP9,WP11,WP22?
First of all,WP5,WP9,WP11,WP22 are steel grades from standard ASTM
A234,,alloy pipe fittings of ASTM A234 WP1/ WP5 / WP9 / WP11,WP22
etc.(ASTM A234 WP5 Pipe Fitting)
ASTM A234,carbon steel material commonly used in WPB and WPC,alloy
materials commonly used WP5/WP9/ WP11/WP12/WP22/WP91 etc.,these
materials regardless of the chemical composition,mechanical
properties and tensile properties are different.The specific values
are as follows:
Alloy Steel Pipe Bends ASTM A234 Long Radius Chemical Composition |
| WPB B,C,D,E, | WPC C,D,E, | WP11 CL1 | WP11 CL2, | WP11 CL3 | WP22 CL1, | WP22 CL3 | WP9 CL1, | WP9 CL3 |
Carbon | 0.3 | 0.35 | 0.05-0.15 | 0.05-0.20 | 0.05-0.20 | 0.05-0.15 | 0.05-0.15 | 0.15 | 0.15 |
Manganese | 0.29-1.06 | 0.29-1.06 | 0.30-0.60 | 0.30-0.80 | 0.30-0.80 | 0.30-0.60 | 0.30-0.60 | 0.30-0.60 | 0.30-0.60 |
Phosporus | 0.05 | 0.05 | 0.03 | 0.04 | 0.04 | 0.04 | 0.04 | 0.04 | 0.04 |
Sulfur | 0.058 | 0.058 | 0.03 | 0.04 | 0.04 | 0.04 | 0.04 | 0.03 | 0.03 |
Silicon | 0.10 min | 0.10 min | 0.50-1.00 | 0.50-1.00 | 0.50-1.00 | 0.5 | 0.5 | 0.5 | 0.5 |
Chromium | 0.4 | 0.4 | 1.00-1.50 | 1.00-1.50 | 1.00-1.50 | 1.90-2.60 | 1.90-2.60 | 4.0-6.0 | 4.0-6.0 |
Molybdenum | 0.15 max | 0.15 max | 0.44-0.65 | 0.44-0.65 | 0.44-0.65 | 0.87-1.13 | 0.87-1.13 | 0.44-0.65 | 0.44-0.65 |
Nickel | 0.4 | 0.4 | … | … | … | … | … | … | … |
Copper | 0.4 | 0.4 | … | … | … | … | … | … | … |
Others | Vanadium 0.08 | Vanadium 0.08 | … | … | … | … | … | … | … |
| WP9 CL1, | WP9 CL3 | WP91 |
Carbon | 0.15 | 0.15 | 0.08-0.12 |
Manganese | 0.30-0.60 | 0.30-0.60 | 0.30-0.60 |
Phosporus | 0.03 | 0.03 | 0.02 |
Sulfur | 0.03 | 0.03 | 0.01 |
Silicon | 1 | 1 | 0.20-0.50 |
Chromium | 8.0-10.0 | 8.0-10.0 | 8.0-9.5 |
Molybdenum | 0.90-1.10 | 0.90-1.10 | 0.85-1.05 |
Nickel | … | … | 0.4 |
Copper | … | … | … |
Others | … | … | Vanadium 0.18-0.25
Columbium 0.06-0.10
Nitrogen 0.03-0.07
Aluminum 0.02F
Titanium 0.01F
Zirconium 0.01F |
Alloy Steel Pipe Bends ASTM A234 Long Radius Mechanical Properties |
| WPB | WPC,
WP11-CL2 | WP11-CL1,
WP22-CL1
WP9-CL1
WP9-CL1 | WP11-CL3,
WP22-CL3
WP9-CL3
WP9-CL3 | WP91 |
Tensile strength, minimum unless a range is given ksi (MPa) | 60 (415) | 70 (485) | 60 (415) | 75 (520) | 90 (620) |
Yield,strength, min ksi (MPa) (0.2% offset or 0.5% extension
under-load) | 35 (240) | 40 (275) | 30 (205) | 45 (310) | 60 (415) |
