25MnG Seamless Steel Tubes For High Pressure Boiler

Introduction

25MnG is one of the steel grades belonging to the GB/T 5310 standard. It is a high quality carbon steel equivalent to SA210C. Compared with 20G steel, 25MnG steel contain higher Manganese contents, high manganese contents gives 25MnG seamless steel pipes higher yield strength. While its plasticity and toughness is equivalent to that of 20G steel.

 

Features of 25MnG seamless steel tubes

1. High strength and good mechanical properties: 25MnG seamless steel tube can withstand large loads in high pressure environments due to it contains high carbon and manganese contents.

2. Good heat resistance and thermal conductivity: 25MnG seamless steel tube can be used for a long time in high temperature environments ranging from 450℃ to 500℃. And it has good thermal conductivity due to its high manganese contents, Which can effectively improve the thermal transfer efficiency of steel tubes.

3. Excellent high pressure resistance: The tensile strength is over 485Mpa, and the yield strength is over 275Mpa. 25MnG seamless steel pipe has excellent high pressure resistance, suitable for manufacturing of the components that requires withstand large external force in high pressure environments.

 

Specifications

Product name	Seamless Steel Tubes For High Pressure Boiler
Place of origin	Tianjin China
Standard	GB/T 5310 ASTM A210
Material grades	25MnG (ASTM A210 C)
Outside diameter	26.7mm to 508mm, non-standard can be accepted
Wall thickness	2mm-60mm
Length	3m-12m or customized length
Surface treatment	Black painting, Varnish painting or as per clients' requirements
Pipe ends	Plain ends, Bevel ends, etc.
Delivery condition	Normalizing

 

Chemical compositions %

Steel grade	C	Si	Mn	P,max	S,max
25MnG	0.22-0.27	0.17-0.37	0.70-1.00	0.025	0.015

 

Mechanical properties

Steel grade	Tensile strength(Mpa)	Yield strength,min(Mpa)	Elongation,min(%)	Hardness(HBW)
25MnG	485-640	275	20	130-180

 

Product show

 

Packing

For small diameter(8" and lower) : In bundled with steel strip, and then wrapped with woven bags.

For large diameter(9" and upper) : In loose. Steel pipes are loaded into container by our experienced forklift drivers.Each bundle with three or four metal straps based on different size of pipe, pipe ends plastic caps for protecting.

 

Applications

High pressure boilers and power plant equipment: 25MnG seamless steel tubes are commonly used to manufacture components such as water-cooled walls, economizers, and low-temperature superheaters that the working temperature is below 500℃.

In addition, it is also suitable for industries such as petroleum, chemical, power plants, boilers, etc., such as manufacturing reactors, heat exchangers, and separators.

 

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 is the quality of your products?

A: Our products are manufactured strictly according to production standard, and each one is carefully inspected before delivery.

Q: Can I go to your company for visit?
A: Of course, warmly welcome to your visit at any time. Please let us know your schedule and we will pick you up.

Q: Can you delivery the goods on time?

A: Of course, we promise to provide customers with high quality and best price, and the goods can be shipped on time. Honestly is our service tenet.

Hot Tags: 25mng seamless steel tubes for high pressure boiler China, manufacturers, suppliers, factory, high quality, buy