China Butt Weld Fittings manufacturer

TOBO GROUP  

TOBO International Trading(Shanghia)Co.,Ltd       Tianda Oil Pipe Co., Ltd

TOBO Pipeline Equipment Co.,Ltd        TPCO & TISCO Pipe(Tianjin)Co.,Ltd.                        

News

September 1, 2021

A234 WP5 alloy steel pipe fittings 90 deg LR elbow Seamless Carbon Steel Elbow/Alloy Steel Elbow/Pipe Bend

A234 Pipe Fittings,butt welded pipe fittings,elbow,tee,reducer,cap etc

 

1.Elbow, reducer, tee, cross, pipe cap and bend.
2. Superior quality
3. Reasonable price

 

A234 Pipe Fittings

Standard Specification: Piping Fittings of Wrought Carbon Steel and Alloy Steel for Moderate and High

Temperature Service. 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.

 

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.

 

Chemical Requirements

Grade Carbon

Managa

nese

Posp

horus

, max

Sulfur.

max

Silicon

Chro

mium

Molyb

denum

Nickel

Cop

per

Others
WPB

0.30

max

0.29-1.06 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

WPC

0.35

max

0.29-1.09 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 0.30-0.90 0.045 0.045 0.10-0.50   0.44-0.65      

WP12CLI;

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 0.5 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       1.60-2.24 0.75-1.25  
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 0.40 max  

Vanadium

0.18-0.25;

Columbium

0.06-0.10;

nitrogen

0.03-0.07;

Aluminum

0.04 max

WP911 0.09-0.13 0.30-0.60 0.020 0.010 0.10-0.50 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

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