How to Weld Mild Steel Pipe with AWS D10.12M/D10.12:2000 Guide
If you are looking for a reliable and comprehensive guide for welding mild steel pipe, you may want to check out the AWS D10.12M/D10.12:2000 Guide for Welding Mild Steel Pipe. This document presents recommended practices for welding mild steel pipe with various processes, such as oxyacetylene, shielded metal arc, gas tungsten arc, gas metal arc, and flux cored arc welding. It also covers pipe sizes of DN 200 NPS 8 and under, with wall thicknesses of 13 mm 0.5 in. and under.
Mild steel pipe is commonly used for piping systems such as low pressure heating, air conditioning, refrigeration, water supplies, as well as some gas or chemical systems. It refers to low carbon (less than 0.25%) steels such as ASTM A 53, A 106, A 135, A 179, A 524, A 587, and API5L, Grades A25, A and B, and X42[^1^]. Welding mild steel pipe requires proper techniques and procedures to ensure quality and safety.
In this article, we will provide a brief overview of the AWS D10.12M/D10.12:2000 Guide for Welding Mild Steel Pipe and some of its key features. We will also explain how you can download the PDF version of the guide from the AWS Bookstore for free.
What is the AWS D10.12M/D10.12:2000 Guide for Welding Mild Steel Pipe
The AWS D10.12M/D10.12:2000 Guide for Welding Mild Steel Pipe is an American National Standard that was approved by the American National Standards Institute (ANSI) on July 20, 2000[^2^]. It supersedes the ANSI/AWS D10.12-89 version that was published in 1989.
The guide was prepared by the AWS D10 Committee on Piping and Tubing under the direction of the AWS Technical Activities Committee and approved by the AWS Board of Directors. It is intended to provide general information and recommendations for welding mild steel pipe in various applications and environments.
The guide does not address the needs of pipe steels or service conditions that may require post weld heat treatment (PWHT). It also does not provide specific welding procedures or parameters for each welding process or joint configuration. The welder should always follow the applicable codes, standards, specifications, and contract documents for the project.
What are some of the key features of the AWS D10.12M/D10.12:2000 Guide for Welding Mild Steel Pipe
Some of the key features of the AWS D10.12M/D10.12:2000 Guide for Welding Mild Steel Pipe are:
It provides general guidelines for preheating, joint preparation, alignment and positioning, fittings, root pass and hot pass techniques for each welding process.
It explains how to select the appropriate filler metal, shielding gas, electrode size and shape, current type and polarity, travel speed and direction, arc length and voltage, weaving technique, interpass temperature and cleaning method for each welding process.
It describes how to evaluate the appearance of finished welds and identify common weld defects such as porosity, slag inclusion, lack of fusion, undercutting, cracking and distortion.
It includes tables that show the required filler metal per joint for mild steel pipe according to the base metal thickness and diameter.
It provides illustrations that show typical joint designs and weld profiles for various welding processes and positions.
It offers safety precautions and tips for avoiding hazards such as electric shock, fire, explosion, fumes and radiation when welding mild steel pipe.
How to download the PDF version of the AWS D10.12M/D10.12:2000 Guide for Welding Mild Steel Pipe
If you want to download the PDF version of the AWS D10.12M/D10.12:200 aa16f39245