一、标识与标准 SA320-L7:这通常指的是符合美国材料与试验协会(ASTM)A320标准中的L7等级的材料。这里的“SA”可能是对“ASTM A”的简写或省略。 GrL7:Gr是Grade(等级)的缩写,GrL7即表示L7等级。它同样指的是A320标准下的L7等级材料,但表述上更为直接和明确。 二、化学成分与机械性能 无论是SA320-L7还是GrL...
ASME SA 320 Grade L7, Grade L7M, Grade L43FASTENER - THREADED BAR / STUD / BOLT / NUT / SCREW / WASHERASME SA 193 Grade B7, Grade B7M, Grade B16ASTM A 193 Grade B7, Grade B7M, Grade B16ASME SA 320
SA320 L43 L7 PTFE Coated Stud Bolt And Nuts Standard: DIN933/DIN931/ISO4014/4017/ANSI B 18.2.1/ ASTM A320/A325/A449/A490/A307/A193 B7, A193 B8/B8M;GB5782/5783, DIN6914 Size: 1/2"-4", M5-M64 Material: Alloy Steel Grade: ASTM A193 Gr.B7, B7M,L7,L7M,B8...
For example, when Grade L43 is speci-fied to meet the Table 2 impact energy values at −150°F[−101°C], additional restrictions (such as procuring asteel with lower P and S contents than might normallybe supplied) in the chemical composition for AISI 4340are likely to be required....
2009b SECTION II, PART A SA-320/SA-320M SPECIFICATION FOR ALLOY STEEL AND STAINLESS A09 STEEL BOLTING MATERIALS FOR LOW- TEMPERATURE SERVICE SA-320/SA-320M (Identical with ASTM Specification A 320/A 320M-07.) 1. Scope 1.4 Supplementary Requirements (S1, S2, and S3) of 1.1 This speci...