GR-60 Hot Drawn
Rebar (short for reinforcing bar), collectively known as reinforcing steel and reinforcement steel, is a steel bar or mesh of steel wires used as a tension device in reinforced concrete and reinforced masonry structures to strengthen and hold the concrete in compression.
Concrete is strong under compression, but has weak tensile strength. Rebar
significantly increases the tensile strength of the structure. Rebar surface is often patterned to form a better bond with the concrete. The most common type of rebar is carbon steel, typically consisting of hot-rolled round bars with deformation patterns.
Other readily available types include stainless steel, and composite sections made of glass fiber, carbon fiber, or basalt fiber.
These alternate types tend to be more expensive or have lesser mechanical properties and are thus more often used in specialty construction where their physical characteristics fulfill a specific performance requirement that carbon steel does not provide.
In practice, any material with sufficient tensile strength that is materially compatible with concrete could potentially be used to reinforce concrete, for example bamboo might be considered a viable substitution in regions where steel is not available.
Steel and concrete have similar coefficients of thermal expansion, so a concrete
structural member reinforced with steel will experience minimal stress as the
temperature changes.
Rebars can be identified by marks inscribed on to the surface of one side of rebar as per SASO ASTM 615 M and SASO ASTM 706M standards
The precise process control adopted at results in clean steel with very low content of undesirable residual elements, higher yield strength, good ductility and better bending properties of the steel bar. The lower carbon equivalent values used in also make them readily weldable, particularly for the applications requiring low heat input like tack welding.
REINFORCING BARS
SABIC‘s steel strengthens structures and reinforces the foundations of prosperity in Saudi Arabia and the region.
Mechnical Properties of SABIC Steel Rebars
| Standard Diameter mm | Grade | Nominal Strength MPa (min.) | Yield Strength MPa (min.) | Tensile to Yield Ratio (min.) | Tensile in 200 mm (min.) | Elongation (A5) (min.) | Elongation (min.) | Agt % |
|---|---|---|---|---|---|---|---|---|
| SASO ASTM A615M | 280(40) | 12 14 – 18 |
280 | 420 | N/A | 12 | N/A | N/A |
| 420(60) | 12 – 20 25 32 – 40 |
420 | 620 | N/A | 9 8 7 |
N/A | N/A | |
| 520(75) | 12- 25 32 – 40 |
520 | 690 | N/A | 7 6 |
N/A | N/A | |
| SASO ASTM A706M | 420(60) | 12 – 20 25 – 36 40 |
420 – 540 | 550 | 1.25 | 14 12 10 |
N/A | N/A |
| BS 449 | 460B | 12 – 40 | 460 | N/A | 1.08 | N/A | 14 | 5 |
| BS 449 | B500B | 12 – 32 | 500 | N/A | 1.08 | N/A | N/A | 5 |
| GCC Standard GS06/ ISO 6935-2 |
B400BR B400BWR |
12 – 40 | 400 | N/A | 1.08 | N/A | 14 | 5 |
| B500BR B500BWR |
12 – 32 | 500 | N/A | 1.08 | N/A | 14 | 5 |
Chemical Composition of SABIC Steel Rebars
| Standard | Grade | Chemical composition % (maximum) | |||||||
|---|---|---|---|---|---|---|---|---|---|
| C | Si | Mn | S | P | N | Cu | C.E.V. | ||
| SASO ASTM A615 |
280/420/520 (40/60/75) |
0.06 | |||||||
| SASO ASTM A706M |
420(60) | 0.3 | 0.045 | 0.035 | 0.55 | ||||
| BS 4449 | 460(B) | 0.25 | 0.05 | 0.05 | 0.012 | 0.51 | |||
| BS 4449 | B500B | 0.22 | 0.05 | 0.05 | 0.80 | 0.50 | |||
| GCC Standard | B400BR / B500BR | 0.06 | 0.06 | ||||||
| GS06/ ISO 6935-2 |
B400BWR / B500BWR | 0.22 | 0.60 | 1.60 | 0.05 | 0.05 | 0.012 | 0.50 | |
Payment & Transaction terms:
1. Buyer sends official LOI to GPG
2. GPG responds with official FCO
3. Buyer counter signs FCO for acceptance of the Conditions & Terms and send together with Company Certificate to Seller.
4. Seller issues Sales & purchase Agreement ( SPA ) open for amendment and review for buyer review together with Technical details of Commodity ( Annex A ) / Plan of total shipments delivery ( Annex B – Provided by Buyer ) Technical Specification signed and sealed (Annex C ) Commitment letter of Product Quantity & Quality Availability & Supply Commitment signed and sealed ( Annex D ) .
5. Buyer review (SPA), sign and returns a soft copy to the seller.
6. Seller final review (SPA) if any amendments necessary and issues Official Commercial Invoice and send both to buyer within 3 banking days final signed and sealed.
7. Buyer initiates the draft letter of 20%from the total contract value based on an MT700 LC at Sight , Confirmed, Revolving and irrevocable LC with full guarantee from the buyer’s bank for the total contract value for the seller’s bank to review and confirm.
8. Seller finalized the LC draft review and are ready to obtain the above said LC.
9. The buyer bank should record to activate the above said LC within 14 days after the issuing of the Commercial Invoice ( Step 6 above ) and release the Letter of Credit (LC) to the bank or financial institution for issuance by above said LC. Buyers bank issues the LC MT700 with a minimum total contract value coverage of 20% , MT700 Confirmed, Irrevocable, revolving LC to sellers financial bank.
( 20% of total MT Contract value x “MT unit price “ USD = ……………,- USD )
10. Seller issues a Performance Bond Guarantee of 20% of the total contract value as performance bond bank guarantee as PBG to the buyer’s account bank against the LC.
11. Seller within ten (10) business days comply and execute the processes of registering purchase order.
12. Shipment starts
IMPORTANT :
POP & Sight inspection will be submitted and exchanged ;
” Only and After an official MT700 Swift request from Buyer’s bank to our Seller’s bank has been send” .
Any additional documentation will only be exchanged through the secured Bank channels and only through MT700 or MT705 Swift enquiry – BCL /MT199 / MT799 or other similars as Proof of fund or as Swift exchange are not Accepted.