Q355E Low Temperature Seamless Steel Pipes

Introduction of low alloy steel pipes

Q355E seamless steel pipe is belong to low alloy high strength structural steel. The letter "Q" represents its minimum yield strength, so Q355 means that its minimum yield strength is 355Mpa. The letter "E" represents means that the minimum impact energy in -40℃ low temperature is 27J, indicating that Q355E seamless steel pipe has excellent low temperature breaking resistance. In terms of mechanical properties, the tensile strength range of Q355E seamless steel pipes is 470-630Mpa, indicating that their excellent tensile performance, enhancing the safety and reliability of steel pipes in practical applications.

 

Advantages of Q355E Seamless Steel Pipes

1. High strength and toughness: Q355E seamless steel pipes have excellent tensile strength and yield strength, while maintaining good low-temperature impact toughness. Which enables Q355E seamless steel pipes to maintain excellent performance even under extreme conditions.

2. Low temperature resistance: Q355E seamless steel pipe has good low temperature resistance and can maintain stable operation at -40℃ to -60℃. Due to its special production process and chemical compositions, Q355E seamless steel pipes is not prone to brittle fracture and stress corrosion in low temperature environments.

3. Corrosion resistance: Although Q355E seamless steel pipe is not specifically design for high corrosion resistance, It offers adequate protection against general corrosion. The steel pipe also can be galvanized to further enhance the corrosion resistance.

 

Specifications

Product name	Q355E Seamless Steel Pipe for Low Temperature Service
Place of origin	China
Standard	GB/T 6479, GB/T 8163, GB/T 8162, etc.
Relevant standard	GB/T 18984, ASTM A333
Material grades	Q355E
Outer diameter	10.3mm-914.4mm
Wall thickness	1mm-30mm
Length	3m-12m or customized length
Technique	Hot rolled process
Surface treatment	Black painting, Varnish painting, Hot dipped galvanized or as per clients' requirements
Pipe ends	Plain ends, Bevel ends, etc.
Delivery condition	Heat treatment: Normalized

 

Chemical compositions %

Grade	C,max	Si,max	Mn	P,max	S,max	Nb	V	Ti	Cr,max	Ni,max	Mo,max	N,max
Q355E	0.18	0.50	0.90-1.65	0.025	0.020	0.005-0.05	0.01-0.12	0.006-0.05	0.30	0.50	0.10	0.015

 

Mechanical properties

Grade	Yield strength,min(Mpa)	Tensile strength(Mpa)	Elongation,min(%)
Q355E	355	470-630	22

 

Product show

 

Applications

Q355E seamless steel pipes are widely used in multiple fields, such as buildings, mechanical manufacturing, chemical industry, and petroleum, etc.

1. In the field of buildings, Q355E seamless steel pipe is mainly used for manufacturing of supporting, framing, beams, and other parts of building structures. Due to its high strength, it can withstand large loads, ensuring the stability and safety of building structures.

2. Low temperature environments: Due to its excellent low temperature impact toughness, Q355E seamless steel pipes are usually used for transportation or store of low temperature fluid.

3. Petroleum and chemical industries: Due to its good corrosion resistance, Q355E seamless steel pipes also can be used in the applications where good corrosion resistance is required.

 

FAQ

Q: What is your payment terms?

A: One is 100% T/T, and another one is 30% prepayment and the balance payment of BL before shipment.

Q: How to obtain a quotation?

A: Please providing product's specifications you want, such as outer diameter, wall thickness, and length, etc. After receiving your detailed requirement, we will give you a quotation.

Q: Will you delivery the goods on time?

A: Yes, we promise to provide high quality products and delivery the goods on time. Honesty is our service tenet.

Q: Can you accept the third party inspection?

A: Of course, we absolutely accept.

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