API 5L Grade B Hot Rolled LSAW Steel Pipe

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API 5L GR.B Hot Rolled LSAW Steel Pipe

Specifications

Specifications Of API 5L GR.B Hot Rolled LSAW Steel Pipe
Standard:API 5L
Outside Diameter :18mm to 1820 mm
API 5L GR.B Hot Rolled LSAW Steel Pipe Wall Thickness : 2mm to 60mm
Length :4M to12.2M,fixed length 6M,11.8M,12M,5.85M
Grades :API 5L GR B to X80
Two Processing Method Of API 5L GR.B Hot Rolled LSAW Steel Pipe

Dimensions API 5L GR.B Hot Rolled 36" LSAW Steel Pipe

Are you urgent for a reliable Hot Rolled 36" LSAW Steel Pipe supplier? Do you know the Hot Rolled 36" LSAW Steel Pipe is much more popular than before? Many importers are keen on it. In the next part, concrete details are listed below.

Hot Rolled 36" LSAW Steel Pipe is for low pressure liquid delivery, such as water, gas and oil. Standards: ASTM, ASME, API 5L, JIS, DIN, EN, ISO, GB, etc. Grades: A53/135/210/333/334/335, X42/46/52/56/60/65/70/80, X42N/M, X52N/M, X56N/M, X60N/M, B. OD: 400mm-2800mm. WT: 8mm-50mm. Delivery: Within 30 Days. Payment terms: L/C, T/T. Supply ability: 500 MT/month. We can satisfy your various requirements.

Hot Rolled 36" LSAW Steel Pipe is mainly used in public waterworks, petrochemical industry, chemical industry, electric power industry, agricultural irrigation and urban construction etc. It is one of the twenty developmental major products of India. For liquid transportation: water supply, drain off water, petroleum transportation etc. For gas transmission: coal gas, steam, liquefied petroleum gas, gas, etc. For structure: piling, bridge, wharf,road, architectural structure etc.

DIFFERENCE BETWEEN HOT ROLLED STEEL AND COLD ROLLED STEEL

Hot Rolled

Hot rolling is a mill process which involves rolling the steel at a high temperature (typically at a temperature over 1700° F), which is above the steel’s recrystallization temperature. When steel is above the recrystallization temperature, it can be shaped and formed easily, and the steel can be made in much larger sizes. Hot rolled steel is typically cheaper than cold rolled steel due to the fact that it is often manufactured without any delays in the process, and therefore the reheating of the steel is not required (as it is with cold rolled). When the steel cools off it will shrink slightly thus giving less control on the size and shape of the finished product when compared to cold rolled.

Uses: Hot rolled products like hot rolled steel bars are used in the welding and construction trades to make railroad tracks and I-beams, for example. Hot rolled steel is used in situations where precise shapes and tolerances are not required.

Cold Rolled
Cold rolled steel is essentially hot rolled steel that has had further processing. The steel is processed further in cold reduction mills, where the material is cooled (at room temperature) followed by annealing and/or tempers rolling. This process will produce steel with closer dimensional tolerances and a wider range of surface finishes. The term Cold Rolled is mistakenly used on all products, when actually the product name refers to the rolling of flat rolled sheet and coil products.

When referring to bar products, the term used is “cold finishing”, which usually consists of cold drawing and/or turning, grinding and polishing. This process results in higher yield points and has four main advantages:

Cold drawing increases the yield and tensile strengths, often eliminating further costly thermal treatments.
Turning gets rid of surface imperfections.
Grinding narrows the original size tolerance range.
Polishing improves surface finish.

All cold products provide a superior surface finish, and are superior in tolerance, concentricity, and straightness when compared to hot rolled.

Cold finished bars are typically harder to work with than hot rolled due to the increased carbon content. However, this cannot be said about cold rolled sheet and hot rolled sheet. With these two products, the cold rolled product has low carbon content and it is typically annealed, making it softer than hot rolled sheet.

Uses: Any project where tolerances, surface condition, concentricity, and straightness are the major factors.