Sourcing a quality steel pipe and tube while meeting the industry standards and government norms is not an easy task and we would like to simplify it with a detailed note below.
Every country has its own codes and standards but the truth is that American National Standards are the most widely used in India, primarily because the compliance with those are accepted world over.We do have British, Japanese and Indian standards prevalent in few industries but the scope and TG is very limited.
Before we delve into the prevalent standards and codes, we would like to define each one of them in detail.
Standards are published by professional societies, organizations or group to improve safety and quality.
Codes are a set of rules and procedures that has been adopted into a law.
Some of the most used standards in India include ASTM, ASME, API, ANSI and it could differ based on the industry from oil and gas to petroleum. It’s only these standards that ensure safety and quality of our purchase and distinguishes the quality manufacturers and dealers from the crowd.
American Standards for Testing Materials (ASTM)
ASTM provides industrial standards and service standards across several industries and the organization has till date published more than 12000 standards which are in use. Out of which more than 100 standards pertain to pipe, tubes, and fittings.
Unlike other international standards that will impact only specific industries, ASTM is more holistic and it factors in almost every industry one can think of and is universally accepted in pipes and tubes industry.
American society for Mechanical Engineers (ASME)
ASME that began operations way back in the year 1880 has been one of the key driving forces behind the safety improvements in boiler and pressure vessels used across several industries.
They have set dedicated standards that can be applied to pipes, tubes and fittings and just like ASTM they have a holistic approach for their standards and can be universally applied to every industry and are considered as a mark for quality.
Nuances of ASTM reading:
Let’s understand with real example. In a ASTM reading A 106 B as accredited by ASTM (ASME spec would be somewhat like SA 106 B)
Here A is the designated ferrous material, 106 is an arbitrary number that indicates it’s a seamless carbon pipe used for high temperatures and grades such A, B, C indicates its chemical make-up and mechanical properties.
Complying both ASTM ASME Standards:
If it’s A/SA 333, it means it complies with both ASTM and ASME standards.
Majority of the times, both ASTM and ASME would be identical and the only major difference would be at times, ASME would require additional tests to compile with it.
American Petroleum Institution (API)
As the name suggests, it’s an organization that conceives and implements standards for pipes and tubes used for oil and gas industry.
Pipes rated under API can be similar to design and material compared to other pipes in other industries, but API standards will involve additional testing requirements
API 5L is the most common standard to which a line pipe is rated in Oil and natural gas is rated. Some grades of API comply with A/SA 106 and A/SA 53 .e ASTM and ASME standards but not vice versa.
The American Iron and Steel Institute and Society of Automotive Engineers share a similar numbers to classify steel. AISI/SAE has published standards pertaining to the chemical make-up but they do not include the manufacturing, heat treatment and testing parameters.
Even our most revered standards ISO has its roots in America.American National Standardization Institute , the American body joined hands with many international organizations to form International Organization for Standardization (ISO) and they also happen to accredit ASTM, ASME as an acceptable standards of practice.
Hope you would be able to decode standards better from now on and make informed decisions.
From the humble beginnings back in the year 1988, Madras Steels & Tubes has reinvented the idea of traditional Pipe & Tube suppliers in India delivering standard and customized piping and tubing solutions in Galvanized steel, mild steel, stainless steel, Seamless, ERW/SAW, Boiler Tubes, CRCA Round tubes etc.,
We are a leading exporter/ importer/ authorized supplier for steel tube and pipes with branches in cities like Chennai, Mumbai, Bangalore, Kochi, Hyderabad, Visakhapatnam, Ahmedabad, and Delhi.