Wah Seong China Limited Company

1. Wire Mesh

FLEX MESH SPECIFICATION

1) General
Description:

Fig. 1

Flex-mesh is a spot-welded mesh made of galvanized low-carbon steel wire intended for the reinforcement of concrete weight-coated pipelines.

Definitions:

a.	Nominal wire diameter : the diameter in mm(in.) to designate the wire.
b.	Real wire diameter: the average value of the minimal and the maximal diameter, measured in one and the same section of a straight piece of wire by means of a micrometer accurate to 0.01mm.
c.	Line wire: wire in longitudinal direction of the mesh.
d.	Cross wire: wire in transversal direction of the mesh.
e.	Mesh dimensions: the mesh dimensions are measured from center to center of the wires. L: distance between line wires / S : distance between cross wires.
f.	Crimp(%):potential elongation of the deformed line wires is 9%.
g.	Identification of mesh types:

	x		x		x		x		x

(a)		(b)		(c)		(d)		(e)		(f)

             (a): distance between line wires in mm.
             (b): distance between cross wires in mm.
             (c): line wire diameter in mm.
             (d): cross wire diameter in mm.
             (e): width in mm.
             (f): roll length in m.

        Flex-mesh type:

Wire diameters, percentage of crimp, width and length of the roll are optimized on engineering specifications and the requirements and possibilities of the coating contractor.

    2) Raw material
        Wire rod
        DIA: Ø 6.5mm

Table 1: Chemical Composition (%)
C	Si	Mn	P	S
0.12-0.2	≤0.30	0.30-0.70	≤0.045	≤0.045

Zinc
Material: Zn99.99.

Table 2: Chemical Composition (%)
Zn not less than	Impurity not more than
	Pb	Cd	Fe	Cu
99.99	0.005	0.003	0.003	0.002

3) Properties
Wire diameter and tolerances:

Table 3: wire diameter and tolerances
Nominal wire diameter mm(in)	Tolerance mm(in)
d<1.90(0.075)	+0.05(0.002)
1.90(0.075)≤d<3.7(0.146)	+0.08(0.003)

Out-of-roundness of the wires:

The difference between the minimal diameter and the maximal diameter, measured in the same cross-section, shall not be more than one-half the total diameter tolerance.

Mesh sizes and tolerances: see fig 1 and table 4.

Table 4: Mesh sizes and tolerances.
Mesh designation	Nominal mesh dimension mm(in)	Tolerance mm(in)
L	25.4(1)	+2(0.079)
S	92.4(3.638) (*)	+7(0.276)

        Dimensions
        Tolerance on width: +5MM(0.197in)
        Tolerance on length : -0 +1%

        Tensile strength: calculated on nominal diameter.

•	Line wires
	485 N/mm2 (70 k.s.i.) min, according to ASTM A 82 Standard specification for Steel wire,plain,for concrete reinforcement.

•	Cross wires : see table 5
	485 N/mm2 (70 k.s.i.) min, according to ASTM A 82 Standard specification for Steel wire,plain,for concrete reinforcement.

Mass of coating

Minimum mass of zinc coating per m2 of wires surface according to ASTM A 641M Regular Coating.

Weld shear load

The average weld shear strength of 4 welds taken at random will be min. 50% of the min. breaking load of the line wire (according to ASTM A 185 Standard specification for.

steel welded wire fabric,plain,for concrete reinforcement).

    4) Form of delivery, packing and identification
        Form of delivery data : see table 5.
        Per delivery, maximum 5% of the rolls has one or two joints.

Table 5: Form of delivery
Width in mm(in)	241.3(9.5)
Length in m (ft)	In relation to the wire diameters
Core diameter of rolls in mm (in)	200(7.9)
Outside diameter of rolls in mm (in)	Max. 770(30.3)
Roll weight average in kg (lbs)	Max. 61(134.5)

        Packing
        Bundles of 5 rolls strapped.

        Identification

Each bundle of rolls has a label indicating type, dimensions, number of loading unit, number of bundle and plant of production.
Color code: color combination painted on label.

Steel Wire Mesh Project List

Item	Project Name	Location	Client
1	Dolphin Offshore Project	Middle East	Dolphin Oil
2	PGN Project	Indonesia	Pemsahaon Gas Negaro
3	NCTL Project	Nigeria	Shell Petroleum
4	Huizhou Gas Pipeline Project	China	CNOOC/TEXACO
5	Panyu Gas Pipeline Project	China	CNOOC
6	DongFang Gas Pipelines	China	CNOOC
7	PingHu Offshore Pipleline Project	China	CNOOC
8	Sakhalin Offshore Pipeline Project	Russia	Sakhalin Energy
9	YongHuNing Offshore Pipeline Project	China	SINOPEC
10	Chunxiao Offshore Pipeline Project	China	SNOOC

Newest CWC Project List using our wire mesh

Item	Project Name	Location	Client
1	Taiwan CPC Project	Taiwan	Kanssen Yadong
2	Reliance Jamnagar Export Refinery Project	India	PSL Limited
3	Rasgas Project	Middle East	Socotherm UAE
4	Qatar Gas 2	Middle East	Socotherm UAE
5	Dhirubilai 1&3 Gas Fields Development Project	India	PSL Limited
6	Kikeh Gas Pipeline Project	Malaysia	PPSC Industry

Quality Control

Our products are strictly in accordance with the American Standard as below:

ASTM A 82 Standard specification for steel wire, plain, for concrete reinforcement
ASTM A 185 Standard specification for steel welded wire fabric, plain, for concrete
Reinforcement
ASTM A810 Standard specification for zinc coated (galvanized) steel pipe winding mesh
ASTM A641M

From material purchasing period, we all follow up with the American Standard (ASTM) and set up a material tracing file till delivery of the goods.

Please refer to the following detailed procedure:
1) Raw material and drawing:
After wire drawing, an internal test will be carried to inspect the size and mechanical property of the wire;
2) Semi-products period
During the galvanizing period, we will also measure the weight of the galvanization to ensure the galvanization meeting the ASTM standard;
3) Products
Quality Control Department will sample and test the products strictly according to ASTM Standard.

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2.   Galvanized welded wire mesh

    Product Standards No. : according to ASTMA185 standard

    1) Specifications

Diam(mm)	Mesh	Width	Roll length
1.4-3.0	25.4×101.6 50.8×101.6	Specifications can be customized according to customer requirements

2) Diam/Error

Diam(mm)	Error(mm)
Diam＜1.9	±0.04
1.9≤Diam≤3.0	±0.05

3) Mesh and Error

Mesh(mm)	Error(mm)
25.4	±2
67.0	±2

4) Chemical composition

C	Si	Mn	P	S
≤0.15	≤0.3	≤0.5	≤0.04	≤0.04

5) Properties of the material

	Diam	MPa(N/mm²)	Tensile str	Solder joint shear stress (N/mm2)
Line wire	--	485-650	More than 12%	214×cross-sectional area of wire diameter
Cross wire	≤2.0	Notless than 650	More than 12%	214×cross-sectional area of wire diameter
Cross wire	2.0＜	Notless than 650	More than 12%	214×cross-sectional area of wire diameter

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3. 3Layer PE Pipe Coating Material

1) Adhesive

We act as agent for reputable adhesive manufacturer to provide good 3 layer PE pipe coating product to our customers.

Description
Polymer adhesive L-5R is a polyethylene based adhesive polymer containing anhydride functionality. It is available in pellet form for use in conventional extrusion or co-extrusion equipment designed to process polyethylene type resins.

Characteristics of Lushan L-5R Polymer Adhesive
Powerful bond between epoxy and external PE layer by its POLAR group grafted onto the polymer back-bone.
Suitable melt flow rate allows quick and easy extrusion using the standard polyolefin processing equipment.

Strong adhesion
Strong compatibility
Excellent Durability
Simple and easy processing
Maintained good physical properties of polyolefin

Packing: 25kgs/bag or 600kgs/bag

Physical Properties of the Adhesive

Item	Test method	Unit		Value
Melt Index(190℃,2.16Kg)	ASTM D1238	g/10min		2.6
Density	ASTM D1505	g/cm3		0.925
Tensile Strength	ASTM D638	MPa		20
Elongation at break	ASTM D638	%		900
Hardness	ASTM D2240	Shore D		54
Melting Point	DSC	℃		126
Vicar Softening Point	ASTM D1525	℃		107
Brittle Temperature	ASTM D746	℃		≤-70
Peel Strength	SY/T4013-2002	N/cm	20℃±5	≥150
Peel Strength	SY/T4013-2002	N/cm	50℃±5	≥120

Values represent average laboratory values and are intended as guides only.

2) FBE

We act as the agent for 3M FBE made in 3M China. 3M Fusion Bonded Epoxy Coating is a one-part, heat curable, thermosetting epoxy coating. It is designed to provide superior performance and adhesion to the metal substrate and to provide excellent cathodic disbonding properties without the use of a chromate pretreatment.

3M 886C Test Data:

Properties

Property	Value
Gravity	1.58g/cm3 (film)
Shelf Life at 27 degrees C	12 months
Particle size large than 250μm large than 150μm	<0.2% <3.0%
Moisture content	<0.3%
Gel Time at 205 degrees C 886C 4G 886C 8G 886C 11G	6-11 seconds 17-23 seconds 24-36 seconds
Cure Time at 232 degrees C 886C 4G 886C 8G 886C 11G	30 seconds 90 seconds 110 seconds

3M 886C Test Data- Coating

Property	Test Method: CSA Z245.20-02	Value
Impact	-30 degrees C	3J
Flexibility	0 degrees C	2.5PD°
Volume resistivity	ASTM D 257	1.11015 ohmcm
Electrical Strength	ASTM D 1000	35kv/mm
Chemical resistance	90 days, 24 degrees C	No discoloration, no blistering, no loss of adhesion
Adhesion	95 degrees C, 24 hours	1 rating
Cathodic disbondment	28 Day, 23degrees C, 1.5V, 3%NaCl 24 hours, 65 degrees C, 3.5V, 3%NaCl	5mm 3mm

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4. Fiber Glass inner Wrap

iber Glass Inner Wrap is used as base material for anti-corrosion wrapping on steel pipelines that buried underground for oil or gas transportation. It is characterized by high tensile strength, good flexibility, uniform thickness, solvent resistance, moisture resistance, non-rotting and flame retardation. It is well compatible with impregnating bitumen or coal tar enamel.

	Glass Fiber-Hydrolytic Class 3
	Binder Type: Thermoset
	Fiber type: C Glass
	Packing: with PE-foil
	Nominal Dia: 13 micron
	Latest Issue of Standard: Aug-98
	Nominal Length: 18 mm
	Type: FGT50/10

Item	Test method	Unit	Minimum	Nominal	Maximum
Spacing of reinforcement yarn		Tex		68
Reinforcement Space between yarn		mm		10-15
Area weight	AWWA C203 (ASTM D-146)	g/m2	47.0	50.0
Binder content	DIN	%		20.00
Thickness	AWWA C203 (ASTM D-146)	mm	0.40	0.50
Longitudinal Tensile strength	AWWA C203 (ASTM D-689)	N/5cm N/m	200 4000	230 4600
Trasversale Tensile strength	AWWA C203 (ASTM D-689)	N/5cm N/m	75 1500	90 1800
Tear strength	AWWA C203 (ASTM D-689)	N	1.5
Temperature resistance		℃		288
Pliability	AWWA C203 (ASTM D-146)		No cracks
Porosity	AWWA C203 (ASTM D-737)		0.6-1.9mm
Standard measurement Length x Width Paper Core		m x mm inch		500mx12”/9”/6” 76mm (3”)

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5. Steel shots & Grit for Steel Pipe clearing

Operative Standards:
In accordance with standards of GB/T18838.3－2008 Steel Shot and Steel Grit,SFSA20-66Cast Steel Abrasive, SAE J827 Cast Steel Shot, SAE J1993High Carbon Steel Grit, YB/T5149-1993 Cast Steel Shot, YB/T5150-1993Cast Steel Grit,ISO11124-3High Carbon Cast Steel Shot and Grit.

The Major Technological Index:

Products		Steel Shot
Chemical Composition	C	0.70～1.20%
	Mn	0.35～1.20%
	Si	0.40～1.20%
	S	≤0.05%
	P	≤0.05%
Microhardness		Normal:40～50HRC (377～509HV) Special:52～56HRC (543～620HV) Special:56～60HRC (620～713HV)
Hardness Deviation		Max Deviation ±3.0HRC
Microstructure		Tempered Martensite or Sorbite
Density		7.2g/cm3

Application:

Blast cleaning of cast steel shot: Used for blast cleaning of casting, die-casting, forging, sand removal of casting, steel plate, H type steel, steel structure.
Rust removal of cast steel shot: Rust removal of casting, forging, steel plate, H type steel, steel structure, decaling of forging.
Shot peening of cast steel shot: Shot peening of gear, heat treatment.
Shot blasting of cast steel shot: Shot blasting of profile steel, ship board, steel board and steel material.
Shot blasting of cast steel shot: Shot blasting of steel board, profile steel, steel structure.
Pre-treatment of cast steel shot: Pre-treatment of surface, steel board, profile steel, steel structure, before-painting.

Application Devices:
Steel shot mainly used for the following equipment including rotary barrel shot blasting machine, chain type shot blasting machine, pedrail type shot blasting machine, pass through shot blasting machine, table type shot blasting machine, Pendent-chain & Pile-type Shot Blasting Machine, trolley type shot blasting machine, abrator, abrator equipment, shot peening machine, shot peening equipment, sandblasting machine, sandblasting equipments, steel material pretreatment production line, steel plate pretreatment production line, steel structure pretreatment production line.

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6. Steel Wire Brush for Pipeline Application

APPLICATIONS: Removal of rust, corrosion, paint, primer and generally to Produce clean surface for pipe lines.

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7. Casing pipes and seamless tubes

Wah Seong China Limited has extended her industry chain to involve in exporting and selling of casing pipes and seamless tubes for a domestic steel plant. Casing pipes and seamless tubes are widely used in oil and gas platforms and all kinds of well-drilling projects.

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