PT Bars

PT Bar for Versatile Structural Applications

Pre-stressing Screw Thread Bar is a straight bar which has full thread, high strength, and high dimensional accuracy. The bar can be anchored at any section point with internal screw threads nuts. It is widely used in large-scale water conservancy projects, industrial and civil construction continuous beams and large frame structure, road, rail and medium-sized cross-bridges, nuclear power plants and ground anchors and other projects. It can be easily connected and anchored, and has strong adhesion, tensioned safe, convenient construction, also save steel, reducing component size and weight.

Hot Rolled Threaded

Pre-stressing Screw Thread Bar is a straight bar having a full thread displaying high strength and high dimensional accuracy. The bar can be used for permanent works like connecting segments of a bridge structure, reinforcement of piers subject to horizontal pre-stressing forces etc. as well as for temporary works like anchoring steel frame supports, stitching bar segments before pre-stressing etc. These steel bars can be anchored at any section point with internal screw thread nuts.

Features

The Diameter range from 20 mm to 75 mm
Steel grades 830/1030, 930/1080 & 1080/1230 N/mm2
Minimum Elongation 6-8%
Modulus of elasticity 205,000 N/mm2
Corrosion protection: Fully threaded bars are usually protected by fitting An HDPE pipe over the bar and grouting it with cement on site. The bars as Un-bonded applications are normally supplied in a HDPE tube injected with Grease. Other corrosion protections like Epoxy Coating, Galvanization etc. Are also available as per customer’s specification.

Nominal Diameter (mm)	dv (mm)	dh (mm)	h (mm)	b (mm)	L (mm)	Nominal Sectional Area (mm2)	Nominal Weight Kg/m
25	25	25	1.6	6.0	12	490.9	4.10
32	32	32	2.0	7.0	16	804.2	6.65
36	36	36	2.2	8.0	18	1018	8.41
40	40	40	2.5	8.0	20	1256.6	10.34
50	50	50	3.0	9.0	24	1963.5	16.28
63.5	63.5	63.5	3.0	--	22	3167	26.50
75	74.5	75	3.0	--	20	4418	36.90

Cold Rolled Threaded

MSIL CR Bar is a straight bar having a full thread displaying high strength and high dimensional accuracy. The bar can be used for permanent works like connecting segments of a bridge structure, reinforcement of piers subject to horizontal pre-stressing forces etc. as well as for temporary works like anchoring steel frame supports, stitching bar segments. These CR bars can be anchored at any section point with internal screw thread nuts.

Features

Diameters range from 26.5mm to 75mm.
MSIL-CR Bar Grade950/1080N/mm2.
Minimum Elongation 6-8%
Pitch 6 mmfor≤ 40 mm & 8 mmfor≥ 40 mm
Minimum Elongation 8-10 %.
Re-usable.
Available in custom lengths.

Nominal Diameter (mm)	Section Area	Wight/meter	GRADE 950/1080
mm	mm²	Kg	Yield Load(kN)	Ultimate Load (kN)
26.5	495	4.10	456	530
32	847	6.65	749	868
36	1037	8.41	948	1099
40	1278	10.34	1169	1357
50	1963	15.65	1826	2120
75	4185	32.85	3018	4311

fully threaded bars applications

Large-scale water conserving projects, metroprojects etc. Industrial and civil construction for heavylifting and seismic protection
Bridges, Medium sized Cross-bridges and Rail Nuclear power plants
Ground Anchors
Existing structure strengthening
Post-tensioning of concrete structures

ACCESSORIES

Fully threaded PT Bar
Nut
Threaded bar Coupler
Anchor Plate
Protective cap

STANDARD DESIGN REFERENCE

ACI 318-08
ASTM A615
BS 4449 – 2005
JIS G 3112
SD 390 / 490
AS / NZS 4671

QUALITY ASSURANCE

All component of the Sanfield pre-stressing bar system are manufactured under consistent quality assurance. Load-bearing components are all individually marked with a lot number that assure full traceability.

Traceability of bars is achieved through the MTC and the certificates of compliance provided together with the delivery notes.

A Certificate of Compliance and test reports are provided at the time of delivery.

SURFACE FINISH

No specific surface finish is required for pre-stressing bars upon request, specific coatings are available.

CORROSION PROTECTION

Bars may be protected from corrosion by various means; to be specified by the client: cement grout, wax, plastic shrink films, paint, etc. These various types of protection may be applied on site or in a workshop.

Benefits

The system can be used in both cases of bonded and unbounded pre-stressing internal and external dismountable.
Higher elongation compared to traditional products.
Wide range of corrosion protection such as cement grout, wax injection or coating with plastic heat shrinking sleeve.
High strength of bars leads to less congestion and ease of installation. Ability to detention and re-tension.

Why MSIL PT Bars?

MSIL PT Bars are reusable and can be re-tensioned without any damage.
Continuous thread makes connection possible at any point.
Offering customized accessories for specific applications.
Our PT bars can be easily connected, anchored, tensioned safe, have strong adhesion and provide convenient construction. They also save steel thereby reducing component size and weight.