Standards referred to as”
There are many standards for Steel products in the United States, mainly including the following:
ANSI American national standard
AISI American Institute of Iron and Steel standards
ASTM Standard of American Society for Materials and Testing
ASME Standard
AMS Aerospace Material Specification (one of the most commonly used materials specifications in the US aerospace industry, developed by SAE)
API American Petroleum Institute standard
AWS AWS Standards
SAE SAE Society of Motor Engineers standard
MIL Us Military standard
QQ us federal government standard
Standardized abbreviation for other countries
ISO: International Organization for Standardization
BSI: British Standards Institute
DIN: German Standard Association
AFNOR: French Association for Standardization
JIS: Japanese Industrial Standards Survey
EN: European standard
GB: Mandatory national standard of the People’s Republic of China
GB/T: Recommended national standard of the People’s Republic of China
GB/Z: National Standardization Guidance technical document of the People’s Republic of China
Commonly used abbreviations
SMLS: Seamless stainless Steel pipe
ERW: Electric Resistance welding
EFW: Electric-fusion welded
SAW: Submerged Arc Welding
SAWL: Longitudinal submerged arc welding Longitude
SAWH: Transverse submerged arc welding
SS: stainless steel
Commonly used end connection
Joseph t. : plain end flat
B.E. : Beveled end slope
Thread end Thread
BW: Butt welded end
Cap Cap
NPT: National pipe thread