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Welding Boiler Carbon Steel Heat Exchanger Tubes With Electric Resistance

Minimum Order Quantity : 5Tons Price : USD700-1200/Ton
Packaging Details : ERW Boiler and Heat Exchanger Tubes packed in wooden boxes or hexagonal bundles in seaworthy packing. Delivery Time : 30-45 work days
Payment Terms : L/C, D/A, D/P, T/T, Western Union, MoneyGram Supply Ability : 20000Tons per Year
Place of Origin: ZHEJIANG, CHINA Brand Name: TORICH
Certification: ISO9001, ISO14001, TS16949 Model Number: ASTM A178

Detail Information

Keyword: ERW Boiler Pipe Standard: ASTM A178, ASTM A450
Grade: GrA, GrB, GrD Surface: Oiled
Shape: Round Production: ERW Welded
Heat Treatment: Annealing OD: 12.7-127mm
WT: 0.9-9.1mm Application: Boiler And Heat Exchanger Tubes
High Light:

carbon steel tube


heat exchanger tubes

Product Description

ASTM A178 Electric resistance welded carbon steel and carbon manganese steel boiler and superheater tubes


Product Description:

Steel Grade/Steel Material:

Carbon Steel and carbon manganese steel


Size Range:

OD: 12.7-127mm

WT: 0.9-9.1mm

Length: 1-12mm


Referenced Documents:
ASTM Standards:
A 450/A 450M Specification for General Requirements for Carbon, Ferritic Alloy, and Austenitic Alloy Steel Tubes E 30 Test Methods for Chemical Analysis of Steel, Cast Iron, Open-Hearth Iron, and Wrought Iron

Manufacture—Tubes shall be made by the seamless process and shall be cold drawn.

Production: Electric Resistance Welding


Applications: for Boilers,Superheaters, Heat-Exchangers, Condensers, Boiler flues, superheater flues and safe ends


Heat treatment:
After welding, all tubes are heat treated at a temperature of 1650℉ (900℃) or higher and followed by cooling in air or in the cooling chamber of a controlled atmosphere furnace.
Cold-Drawn tubes are heat treated after the final cold-draw pass at a temperature of 1200℉(650℃)or higher.

Tests and Inspection:
Tensile Test
Crush Test

Mechanical Test
- Flattening Test
- Flange Test

Chemical Requirements

Element Composition,%

Grade A

Low-Carbon Steel

Grade C

Medium-Carbon Steel

Grade D

Carbon-Manganese Steel

C 0.06-0.18 0.35 max 0.27 max
Mn 0.27-0.63 0.80 max 1.00-1.50
P, max 0.035 0.035 0.030
S, max 0.035 0.035 0.015
Si - - 0.10 min

Mechanical Properties

Mechanical Properties Grade A Grade C Grade D
Tensile strenth, min, ksi [MPa] 47[325] 60[415] 70[485]
Yield strenth, min, ksi [MPa] 26[180] 37[255] 40[275]
Elongation ≥35% 30% 30%


Characteristic: Good concentricity Good surface quality

Good OD and ID tolerance High Precision

Stable quality Smooth Roughness



Product Pictures:



Company Introduction:

TorichInternational Co.,Ltd is a professional manufacturer and exporter of steel pipes materials. It is an international marketing and sales company specialized in steel tubes.

Our main products:Seamless Steel Tubes with Carbon and Alloy Steel Grade, Welded Precision Steel Tubes,DOM Steel Tubes, Seamless & Welded Stainless Steel Tubes with Nickel and Alloy Steel Tube.

Our factory was established since 1997, with the name of Haiyan SanxinSteel Pipe Co., Ltd. The factories` technicians are of great engineering experience in steel pipe industry for more than 20 years, who are in great command of production technology for Cold Drawing and Cold Rolling, as well as heat treatment and inspection. So we have strong technician team and manufacturing capability.





Our Certificate:



Q: Are you trading company or manufacturer ?

A: A professional steel pipes materials inventor, manufacturer and solution provider

Q: How long is your delivery time?

A: Generally it is 7-14 days if the goods are in stock. or it is 30-60 days if the goods are not in stock, and 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 you need to pay the cost of freight.

Q: What is your terms of payment ?

A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance , balance before shippment.
If you have another question, pls feel free to contact us

ASTM A178 Electric resistance welded carbon steel and carbon manganese steel boiler and superheater tubes

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