27SiMn 25Mn Structural Carbon Steel Pipe

27SiMn seamless steel pipe is a high-strength, high-wear-resistant steel pipe that is widely used in petroleum, natural gas, chemical industry, aviation, machinery and other fields.

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chemical composition:
The chemical composition of 27SiMn cold drawn steel pipes includes carbon (C), silicon (Si), manganese (Mn), sulfur (S), phosphorus (P) and other elements. The carbon content is 0.24-0.32%, the silicon content is 1.10-1.40%, the manganese content is 1.10-1.40%, the sulfur content does not exceed 0.030%, and the phosphorus content does not exceed 0.030%.
27SiMn low carbon steel pipe has good weldability and processability. Its main features are high hardness, good wear resistance, high strength, good toughness, good welding performance, good heat treatment performance, etc. It is suitable for application environments with high load, high strength and high wear resistance.
The specifications of 27SiMn steel pipes are generally outer diameter (OD) of 16-824mm and wall thickness (WT) of 2-65mm. Commonly used standards include GB/T 8162, GB/T 8163, ASTM A106, ASTM A53, DIN 2391, etc.
The mechanical properties of 27SiMn seamless steel pipe include tensile strength, yield strength, elongation, hardness, etc. The tensile strength is ≥980MPa, the yield strength is ≥835MPa, the elongation is ≥12%, and the hardness is ≤217HB.
27SiMn seamless carbon steel pipe has a wide diameter range, generally 16-824mm. The specific caliber size and wall thickness can be customized according to customer needs.

27SiMn chemical composition:

C	Si	Mn	P	S	Cu	Cr	Ni
0.24-0.32	1.10-1.40	1.10-1.40	≤0.035	≤0.035	≤0.30	≤0.30	≤0.30

27SiMn Mechanical property:

Tensile strength Rm	≥860MPa
yield strength ReH	≥760MPa
Elongation A5	12% or higher
shrinkage Ψ	40% or higher
impact energy AkV2 (20 ℃)	≥39J
Hardness	240 ~ 280 HBW

25Mn Carbon Steel Round pipe Mechanical Properties

Grade	mechanical properties:
	Tensile strength σb (Mpa)	Yield strength σb (Mpa)	Elongation δ5/(%)	reduction of area ψ (%)	Hardness No heat treatment
	min	min	min	min	max
25Mn	695	410	11	35	269HB

27SiMn 25Mn carbon steel pipe

carbon thin-walled steel pipes

Precautions:
During transportation, loading, unloading and use, damage to the surface of the steel pipe should be avoided to avoid affecting the use effect.
Before use, inspection should be carried out to ensure that there are no obvious cracks, dents, scars and other defects on the surface of the steel pipe.
During use, attention should be paid to maintaining the cleanliness of the steel pipe to prevent oil, dust and other impurities from entering the interior of the steel pipe and affecting the use effect.

seamlessly drawn casing tube

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