Stainless steel pipes are widely used in various industries due to their excellent corrosionresistance, High strength, and durability. However, not all stainless steel pipes are created equal. To ensure the highest quality and performance, it is crucial to adhere to industry standards. One such standard is ASTM A312/A213, which sets the guidelines for the manufacturing and testing of seamless and welded stainless steel pipes.
casing Pipe,casing well pipe, casing supreme pipe, casing vs carrier pipe, casing for ac pipe, casing steel pipe, casing pipe size, casing pvc pipe price, casing pipe, casing pipe suppliers in china, casing capping pipe, casing drill Pipe,carrier pipe,casing pipe size,bushing Flange,bushing sleeve,bushing,bushing arm,bushing bearing,bushing Reducer,bushing tool,bushing pvc,bushing meaningThe ASTM A312/A213 standards cover a wide range of stainless steel grades, including TP304, TP304L, TP316, and TP316L. These grades are commonly used in applications where corrosion resistance is of utmost importance, such as in the chemical, petrochemical, and pharmaceutical industries. By following these standards, manufacturers can ensure that their stainless steel pipes meet the necessary requirements for these demanding environments.
OD In (mm)
+
–
WT In (mm)
+
–
<1(25.4)
0.10
0.10
≤1.1/2(38.1)
20%
0
1∼1.1/2(25.4∼38.1)
0.15
0.15
>1.1/2(38.1)
22%
0
>1.1/2∼<2(38.1∼50.8)
0.20
0.20
2∼<2.1/2(50.8∼63.5)
0.25
0.25
2.1/2∼<3(63.5∼76.2)
0.30
0.30
3∼4(76.2∼101.6)
0.38
0.38
>4∼7.1/2(101.6∼190.5)
0.38
0.64
>7.1/2∼9(190.5∼228.6)
0.38
1.14
One of the key aspects of the ASTM A312/A213 standards is the manufacturing process. These standards specify the methods and techniques for producing seamless and welded stainless steel pipes. Seamless pipes are made by piercing a solid billet of stainless steel and then rolling it into a hollow tube. This process ensures a uniform and consistent wallthickness, resulting in a pipe with excellent dimensional accuracy. On the other hand, welded pipes are made by joining two or more pieces of stainless steel using various Welding techniques. This allows for the production of pipes with larger diameters and lengths.
In addition to the manufacturing process, the ASTM A312/A213 standards also outline the requirements for chemical composition, mechanical properties, and testing
a In case of dispute, laboratory Rockwell C hardness testing shall be used as the referee method.
b No hardness limits are specified, but the maximum variation is restricted as a manufacturing control in accordance with 7.8 and 7.9.
c For through-wall hardness tests of Grades L80 (all types), C90, T95 and C110, the requirements stated in HRC scale are for maximum mean hardness number.
