BS1387 HOT DIP GALVANIZED STEEL PIPE

Commodity name： BS1387 HOT DIP GALVANIZED STEEL PIPE

subcategory：

Hot Dip Galvanized Steel Pipe

Tel：

E-mail：

keyword：

Details

产品描述

BS1387 Hot Dip Galvanized Steel Pipe
BS 1387 (EN 10255), A British standard for welded black pipes for screwing to BS21 pipe threads, BS 1387 hot galvanized steel pipe suitable for Threading widely used for gas, air and water transmission, civil and other structures purposes. BS1387 ERW galvanized steel pipe which nominal size DN8-DN150 in light, medium and heavy thickness.

1. TOLERANCE
a) On Thickness Light Tubes = + Not Limited, - 8%. Medium & Heavy tubes = + Not Limited , -10%
b) On Mass for quantities of 150 Mtr., and over of one size =+/- 4%, for single tube =+10% / -8%.
2. ENDS:
Cut cleanly and nominally square with the axis of the tube and free from excessive burrs.
3. PROPERTIES
Chemical composition and mechanical properties at room temperature
Applicable to tubes up to and including the nominal size of 50mm.
a) For black tubes bend up to 180 degrees around a cylindrical mandrel, the Dia of which is 6 times the OD of pipe.
b) For Galvanized pipe bend up to 90 degrees around a cylindrical mandrel, the dia of which is 8 times the OD of pipe.
Tubes shall withstand the test without showing any signs of fracture or failure.
5. FLATTENING TEST
Applicable to tubes greater than the nominal size of 50mm. (COLD)
a) For weld: Distance between the platens, measured under load is not greater than 75% of the OD of the tube.
b) For Material: Distance between the platens, measured under load is not greater than 60% of the OD of the tube.
6. LEAK TIGHTNESS TEST
Online NDT (Eddy current )
b) Hydro test at a pressure of 50 bar.
7. BLACK VARNISH
Tubes are uniformly varnished externally over their full-lengths.
8. ZINC COATING
55 to 70 Microns, uniformity of coating to withstand 4, one-minute dips in a copper sulfate solution.
(GALVANIZING)
9. THREADING
The taper or thread is according to BS 21 standard.
For 1/2" to 3/4" - 14 TPI and from 1" to 6" - 11 TPI
With 2 color bands one near each end of 50 mm width (A class - Brown, B Class - Blue & C Class - Red).
Check with standard BS ring and plug gauges.
10. MARKING
a) We can emboss mill sign "BRISK BS1387" online at every one-meter interval over the length of pipe.
b) We can do online stenciling as per customer needs.
11 PACKING
Hexagonal type.
12.MILL TEST CERTIFICATE
We can issue an MTC, certifying that the tubes supplied comply with this British Standard.

Core Advantage

Brisk Steel Group is rooted in a culture of "technology as the backbone, quality as the soul, and customers as the heart." Through relentless innovation, global expansion, and a commitment to responsibility, we strive to become a trusted global partner and a technological benchmark in the steel manufacturing industry.

Craftsmanship with Precision

We adhere to a rigorous quality control system that spans the entire production process—from raw material procurement and manufacturing to product delivery—ensuring the highest standards of excellence.

Innovation-Driven Technological Leadership

We prioritize R&D and technological advancement, integrating cutting-edge production lines (e.g., JCOE large-diameter LSAW pipe production) and expert teams from countries like Germany and the Netherlands to maintain our position at the forefront of the industry.

Globalization and Open Collaboration

Actively engaging in the global supply chain, we have obtained international certifications such as CE marking, enabling our products and services to reach worldwide markets.

Professional Team and Talent Empowerment

We value the recruitment and development of technical talent, building an international and professional team that drives continuous growth.

None

Hot Dip Galvanized Steel Pipe