We carry a wide variety of NCA-3800 and 10CFR50 Appendix B nuclear qualified, as well as commercial grade, material in inventory.

We stock various shapes and sizes of plate, pipe, flat, round, and square bar in both nuclear qualified and commercial grades, with original mill tests kept on file and all additional chemical, mechanical, NDE, and other testing available through our strategic partnerships. We are able to source and qualify material meeting the requirements of NCA-3800 and 10CFR50 Appendix B quickly and our reliable quality assurance department will ensure all of the appropriate documentation with material.

We stock various shapes and sizes of plate, pipe, flat, round, hex and square bar in both nuclear qualified and commercial grades.

Our inventory includes stainless, carbon and alloy steels, as well as brass and bronze, including but not limited to:

Our inventory includes stainless, carbon and alloy steels, as well as brass and bronze, including but not limited to:

  • 304/L
  • 316/L
  • 410
  • 416
  • 615
  • 630
  • 660
  • A36
  • A108
  • A105
  • A193
  • A434
  • F11
  • F22
  • F91
  • C93200
  • C95400

What we do not carry in-house, we are capable of providing through our suppliers of specialty metals. Through strategic partnerships that we have created, we are able to provide all chemical, mechanical, NDE, and testing required by our customers.

“Thanks for being a partner for many years… Colonial has provided and advised us of any stub end needs for welding fittings.”

“Great company and great people.”

“We appreciate the relationship we have with Colonial.”

“You have always been very helpful and timely with your responses.”

“Great company and super people. Been doing business with Colonial Machine for over 40 years. Very knowledgeable.”

“Overall the customer service is very good.”

“It is a pleasure to do business with Colonial Machine.”

“Colonial Machine is a preferred partner for us as they are a great company to work with.”

“I have been working with Colonial Machine for the past 13 years and they are a very knowledgeable machine shop that can produce quality parts.”

“Honestly one of the best companies that I’ve dealt with in my 44 years in the business.”

“Colonial is one of our favorite vendors!”

“Customer service responds promptly and very courteous to work with.”