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

Categories Seamless Steel Tube
Brand Name: TORICH
Model Number: GB/T 5310 20MnG
Certification: ISO9001 ISO 14001 TS16949
Place of Origin: Zhejiang/China
MOQ: 1Ton
Price: 800-1000 USD/Ton
Payment Terms: L/C,D/A,D/P,T/T,Western Union,MoneyGram
Supply Ability: 60000 Ton/Tons per Year
Delivery Time: 20-30days upon products
Packaging Details: In bundles or in wooden boxes.
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
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20MnG High Pressure Boiler Tube Alloy Seamless Pipe For Boilers Heat Exchangers

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

ElementC (%)Mn (%)Si (%)P (%) MaxS (%) MaxOther Elements (max)
20MnG0.17–0.241.10–1.400.17–0.370.0350.035Cu, Ni, Cr as controlled impurities

Mechanical Properties

PropertyValueTest Standard
Tensile Strength (Rm)410–540 MPaASTM / EN / GB
Yield Strength (Rp0.2)Minimum 245 MPaASTM / EN / GB
Elongation (A5)Minimum 20%ASTM / EN / GB
HardnessTypically less than 200 HBASTM / 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

StandardEquivalent Grade
ASTMA335 P11 / P22 (similar application range)
EN20MnG (1.0421 - similar specs)
GOST20MnG / 20MnGB
JISSCM420 / SCM430 (approximate equivalent)
GB20MnG

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.



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.



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