logo
Home > products > Seamless Steel Tube >
20MnG High Pressure Boiler Tube Alloy Seamless Pipe For Boilers And Heat Exchangers

20MnG High Pressure Boiler Tube Alloy Seamless Pipe For Boilers And Heat Exchangers

Place of Origin:

Zhejiang/China

Brand Name:

TORICH

Certification:

ISO9001 ISO 14001 TS16949

Model Number:

GB/T 5310 20MnG

Contact Us
Request A Quote
Product Details
Standard2:
API 5L,API 5CT,ASTM A53-2007,ASTM A106-2006,BS 1387
Outer Diameter(round):
8 - 426 Mm,
Thickness:
2 - 70 Mm
Standard:
ASTM,DIN,API,GB,JIS
Grade:
20MnG
Grade Group:
GB/T 5310
Application:
Boilers And Heat Exchangers
Technique:
Hot Rolled,Cold Drawn,Cold Rolled,ERW,welded And Seamless Steel Pipe
Payment & Shipping Terms
Minimum Order Quantity
1Ton
Price
800-1000 USD/Ton
Packaging Details
In bundles or in wooden boxes.
Delivery Time
20-30days upon products
Payment Terms
L/C,D/A,D/P,T/T,Western Union,MoneyGram
Supply Ability
60000 Ton/Tons per Year
Product Description

20MnG High Pressure Boiler Tube Alloy Seamless Pipe For Boilers And Heat Exchangers 0

20MnG High Pressure Boiler Tube Alloy Seamless Pipe For Boilers And Heat Exchangers

Material

20MnG is a high-quality alloy steel material commonly used for manufacturing high-pressure boiler tubes and seamless pipes. It is designed to withstand high temperature and pressure conditions typically found in boilers and heat exchangers.

Specification

  • Type: Alloy Steel Seamless Pipe
  • Standard: Typically manufactured as per ASTM, EN, GOST, JIS, GB standards
  • Diameter: Varies depending on application (commonly ranges from 20 mm to 273 mm OD)
  • Wall Thickness: Varies according to pressure requirement
  • Length: Usually supplied in random or fixed lengths

Chemical Composition

Element C (%) Mn (%) Si (%) P (%) Max S (%) Max Other Elements (max)
20MnG 0.17–0.24 1.10–1.40 0.17–0.37 0.035 0.035 Cu, Ni, Cr as controlled impurities

Mechanical Properties

Property Value Test Standard
Tensile Strength (Rm) 410–540 MPa ASTM / EN / GB
Yield Strength (Rp0.2) Minimum 245 MPa ASTM / EN / GB
Elongation (A5) Minimum 20% ASTM / EN / GB
Hardness Typically less than 200 HB ASTM / EN / GB

Key Features

  • High Strength: Suitable for high pressure and temperature environments.
  • Excellent Weldability: The alloy design ensures good weldability for easy fabrication.
  • Corrosion Resistance: Adequate resistance to oxidation and corrosion in boiler environments.
  • Seamless Pipe: Manufactured without weld seam, enhancing durability and reliability.
  • Thermal Stability: Maintains mechanical properties under cyclic temperature conditions.
  • Good Toughness: Ensures resistance to crack propagation and mechanical shocks.

Equivalent Grades

Standard Equivalent Grade
ASTM A335 P11 / P22 (similar application range)
EN 20MnG (1.0421 - similar specs)
GOST 20MnG / 20MnGB
JIS SCM420 / SCM430 (approximate equivalent)
GB 20MnG

Application

  • High-Pressure Boilers: Used in manufacturing of boiler tubes that operate under high steam pressures.
  • Heat Exchangers: Suitable for seamless piping in heat exchangers requiring resistance to high temperatures and pressure.
  • Superheater Tubes: Ideal for superheater and reheater tubes used in power plants.
  • Petrochemical Industry: Used for pipelines subjected to thermal and mechanical stress.
  • Other Industrial Boilers: Used in industrial boilers for power generation, chemical plants, and refineries.


20MnG High Pressure Boiler Tube Alloy Seamless Pipe For Boilers And Heat Exchangers 1

20MnG High Pressure Boiler Tube Alloy Seamless Pipe For Boilers And Heat Exchangers 2     20MnG High Pressure Boiler Tube Alloy Seamless Pipe For Boilers And Heat Exchangers 3


20MnG High Pressure Boiler Tube Alloy Seamless Pipe For Boilers And Heat Exchangers 4     20MnG High Pressure Boiler Tube Alloy Seamless Pipe For Boilers And Heat Exchangers 5

20MnG High Pressure Boiler Tube Alloy Seamless Pipe For Boilers And Heat Exchangers 6

20MnG High Pressure Boiler Tube Alloy Seamless Pipe For Boilers And Heat Exchangers 7

Q: Are you trading company or manufacturer ?

A: manufacturer,also can do trading.


Q: How long is your delivery time?

A: Generally speaking,it is 10-15 days if the goods are in stock,or it is 30-40 days if the goods are not in stock, it is according to quantity.


Q: Do you provide samples? is it free or extra ?

A: Yes, we could offer the sample for free charge but need pay the cost of freight.


Q: What is your terms of payment ?

A: Payment<=2000USD, 100% in advance. Payment>=2000USD, 30% T/T in advance ,balance before shippment.

If you have another question, pls feel free to contact with me.



·

Send your inquiry directly to us

Privacy Policy China Good Quality Precision Steel Tube Supplier. Copyright © 2015-2025 TORICH INTERNATIONAL LIMITED . All Rights Reserved.