SA178D / ASTM A178 Grade D


SA178D is an ERW (electric resistance welded) manganese carbon steel boiler tube used in super heaters, water wall panels, heat exchangers, condensers, marine application, refineries, paper pulping, petrochemical applications, pressure vessels, and general engineering applications. It is also used in coal, thermal and oil power generation plants.

Metro Boiler Tube Co., Inc is not actively stocking SA178D however we do occasionally have random lengths and sizes in our inventory. If you are not finding the material you need please feel free to email or call us. We will contact our numerous boiler tube suppliers to find exactly what you are looking for.

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See Also: ASTM A178 / SA178 D / SA178 C

SA178D Boiler Tube Stock
Metro Inventory

Below is a list of our SA178D boiler tube inventory. This list is updated weekly. If your not finding the size looking for please be sure to look at our SA178D random inventory and As always feel free to give us a Call, and we will check our numerous boiler tube suppliers for you.

What Are Boiler Tube Randoms?

SA178D Boiler Tube Random Lengths
Georgia Inventory

Below is a list of our SA178D boiler tube inventory.This list is updated weekly. If your not finding the size looking for please be sure to look at our SA178D random inventory and As always feel free to give us a Call, and we will check our numerous boiler tube suppliers for you.

What Are Boiler Tube Randoms?

SA178D Boiler Tube Random Lengths
Louisianna Inventory

Below is a list of our SA178D boiler tube randoms.This list is updated weekly. If your not finding the size looking for please be sure to look at our SA178D random inventory and As always feel free to give us a Call, and we will check our numerous boiler tube suppliers for you.

What Are Boiler Tube Randoms?

Other SA178 Grades


Quick Information





SA178 D / ASTM A178 Grade D
Tubing Specifications

SA178 D / ASTM A178 Gr D
Chemical Composition
Carbon Max 0.27%Silicon Min: 0.10%
Manganese: 1.00% - 1.50%Nickle: N/A
Phosphorus Max: 0.030%Chromium: N/A
Sulfur Max: 0.015%Molybdenum: N/A

SA178 D / ASTM A178 Gr D
mechanical Properties
Tensile Strength Min:ksi: 70 MPa: 485
Yield Min:ksi: 40 MPa: 275
Rockwell B:77 HRB Max.

SA-178-D is a P1 Material. Elongation in 2in. or 50mm, min. %: 35

What is the difference between ASTM A178 Gr A, Gr C, Gr D?

See Also: SA178 A Specs / SA178 C Specs



Sales Team


Sam Long - Metro Boiler Straight Tube Division Manager

Sam Long

Straight Tube Division Manager

Trent Hebert - Louisiana Division Manager

Trent Hebert

Louisiana Division Manager

Lucas Doperalski - Metro Boiler Tube Straight Tube Sales

Lucas Doperalski

Straight Tube Sales

Emergency Work


Our Shop Stay Active 7 Days A Week And We Have An Emergency Number With On Call Employees To Handle Any After Hours Emergency Work.

We Have The Ability To Arrange Hot Shot Drivers For Quick Deliveries On Nights And Weekends.

Emergency / After Hours Contacts

(762) 887-0408
emergency@metroboilertube.com