Industrial grade large-diameter thick walled seamless steel pipe for pressure bearing and corrosion-resistant structural use
Category:
building materials/Pipe fittings/seamless steel tube
Model:
complete specifications
Brand:
Hebei Xintongda
material:
20# / Q345B / 16Mn
outer diameter range:
Φ89mm - Φ630mm
Wall thickness range:
6mm - 40mm
execution standard:
GB/T8163-2018
length:
6m/12m fixed length or random
surface treatment:
Black skin/sandblasting/oiling
yield strength:
≥245MPa (Q345B)
tensile strength:
≥470MPa
Testing method:
Ultrasonic testing UT
packaging method:
Bare bundling+rainproof cloth coverage
Retail Price
10,000,000.00USD
重量
kg
- Product Description
-
material 20# / Q345B / 16Mn
outer diameter range Φ89mm - Φ630mm
Wall thickness range 6mm - 40mm
execution standard GB/T8163-2018
length 6m/12m fixed length or random
surface treatment Black skin/sandblasting/oiling
yield strength ≥245MPa (Q345B)
tensile strength ≥470MPa
Testing method Ultrasonic testing UT
packaging method Bare bundling+rainproof cloth coverage
Description :
This product is an industrial grade large-diameter thick walled seamless steel pipe, made of high-quality carbon structural steel or alloy structural steel billets, refined through processes such as perforation, hot rolling, or cold drawing. The inner and outer walls of the pipe are smooth, without welds, and have excellent pressure bearing capacity, tensile strength, and corrosion resistance. It is suitable for high-pressure, high-temperature, and complex working environments.
Typical application scenarios include: oil and gas transmission pipelines, high-pressure pipelines for chemical equipment, boiler heat exchanger bundles, hydraulic supports and transmission shaft sleeves in mechanical manufacturing, building structural support columns, and urban water supply and drainage main pipelines. Its high rigidity and good welding performance make it easy to install and maintain on site, and it is widely used in industries such as energy, petrochemicals, power, shipbuilding, and bridge construction.
The target customer group includes engineering general contractors, pipeline manufacturers, mechanical equipment processing plants, municipal construction units, and procurement departments of large industrial enterprises. The product supports customized length and wall thickness specifications to meet the special requirements of different projects for strength, temperature resistance, and corrosion resistance levels. Before leaving the factory, strict non-destructive testing (such as ultrasonic testing and hydrostatic testing) is carried out to ensure that each pipe meets international standards such as GB/T8162, GB/T8163, or API 5L, ensuring long-term safe and reliable operation.
The surface defaults to retaining the hot-rolled oxide skin state, and can be provided with sandblasting rust removal, oil coating rust prevention, or epoxy coating treatment according to customer needs to extend outdoor service life. During storage and transportation, it is recommended to use wooden pads for isolation to avoid damaging the threads or beveled surfaces of the ports. As a fundamental industrial material, this type of product emphasizes batch stability and delivery cycle control, making it suitable for medium to long-term cooperative supply models.
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