Views: 0 Author: Site Editor Publish Time: 2024-02-26 Origin: Material Database
Understanding the complex chemical composition of stainless steel is very important to understand its diversified applications in various industries. Stainless steel is divided into different categories according to its composition, and each kind of stainless steel aims to show unique characteristics and properties under different conditions. In this comprehensive exploration, we deeply studied the chemical composition of austenite, martensite, Ferritic and duplex stainless steel according to the standards of GB/T 3098.6, GB/T 3098.15, GB/T 3098.16 and GB/T 3098.21. In addition, we also reveal the specific chemical composition of high temperature stainless steel and nickel alloy, and reveal their unique properties and practicability in harsh environment.
Table 1 Chemical composition of austenitic stainless steel.
(GB/T 3098.6, GB/T3098.15, GB/T 3098.16, GB/T3098.21)
Note: except for the range or minimum value, all the components listed in the table are the maximum.
a. Unspecified elements should not be added to the steel without the consent of the buyer, except in order to complete smelting. All reasonable precautions shall be taken to prevent the addition of elements affecting hardenability, mechanical properties and applicability from waste or other materials used in manufacturing.
B. The group of steel is closest to the composition range specified by GB/T 3098.6 and GB/T 3098.15, but what is contained in this table may not be completely consistent.
Table 2 Chemical composition of martensite, ferrite and dual phase steel.
(GB/T 3098.6, GB/T 3098.15, GB/T 3098.16, GB/T 3098.21)
Note: except for the range or minimum value, all the components listed in the table are the maximum.
A unspecified elements should not be added to the steel without the consent of the buyer, except in order to complete smelting. All reasonable precautions shall be taken to prevent the addition of elements affecting hardenability, mechanical properties and applicability from waste or other materials used in manufacturing.
The group of b steel is closest to the composition range specified by GB/T 3098.6 and GB/T 3098.15, but what is contained in this table may not be fully consistent.
C the tungsten content should be 0.5%-1.0%.
D can be recognized as D4 when wCr+3.3wMo+16wN > 24 and conforms to GB/T 3098 stainless steel series standards.
Table 3 Chemical composition of high temperature stainless steel and nickel alloy.
(GB/T 3098.6, GB/T 3098.15, GB/T 3098.16, GB/T 3098.21)
Note: except for the range or minimum value, all the components listed in the table are the maximum.
A unspecified elements should not be added to the steel without the consent of the buyer, except in order to complete smelting. All reasonable precautions shall be taken to prevent the addition of elements affecting hardenability, mechanical properties and applicability from waste or other materials used in manufacturing.
B. The group of steel is closest to the composition range specified by GB/T 3098.6 and GB/T 3098.15, but what is contained in this table may not be completely consistent.
C in addition, the content of vanadium should be 0.25%-0.35%.
D the chemical composition is consistent with EN 10269; in addition, the aluminum content should be ≤ 0.020%, the vanadium content should be 0.10% to 0.30%, and the boron content should be ≤ 0.0015%.
E in addition, the aluminum content should be ≤ 0.35%, the vanadium content should be 0.10%-0.50%, and the boron content should be 0.001%-0.010%.
F the chemical composition is consistent with EN 10269; in addition, the aluminum content should be 1.00%-1.80%, the cobalt content should be ≤ 1.00%, the iron content should be ≤ 1.50%, and the boron content should be ≤ 0.008%.
The chemical composition of g is consistent with that of EN 10269; in addition, the aluminum content should be 0.30%-0.70%, the cobalt content should be ≤ 1.00%, the boron content should be 0.002%-0.006%, and the niobium content should be 4.7%-5.50% (the rest is iron).
