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Grade 304L Stainless Steel Coils/Strips
What Are Stainless Steel Strips Grades?
Common use stainless steel strips grades are often represented by digital symbols.
There are 200 series, 300 series, and 400 series.
They are expressed in the United States, such as 201, 202, 304, 316, 410, 420, 430, etc.
Chinese stainless steel grades are It is indicated by element symbols plus numbers, such as 1Cr18Ni9Ti, 0Cr18Ni9, 00Cr19Ni10, 1Cr17, 3Cr13, 1Cr17Ni7, etc.
The numbers indicate the corresponding element content.
The stainless steel strips can be divided into normal austenitic grade, ferritic grade, martensitic grade, duplex grade, precipitation hardening grade and super austenitic grade.
304(1.4301)/304L(1.4307)/304H(1.4948) STAINLESS STEEL
Stainless Steel Grade 304H includes a high carbon content making the steel more suitable for utilization in applications where high temperatures are available. The benefit of this grade is that it is an austenitic chromium-nickel steel alloy as well as the greater carbon content distribute to increased tensile and yield strength. The material is recommended for utilizing in ASME pressure vessels in working service above 525° C because of the grade's heat resistant properties.
CHEMICAL COMPOSITION
Element | C | Mn | Si | P | S | Cr | Ni | N | Fe |
304 | 0.07% | 2.0% | 0.75% | 0.045% | 0.03% | 17.5~19.5% | 8.0~10.5% | 0.10% | Remainder |
304L | 0.03% | 2.0% | 0.75% | 0.045% | 0.03% | 17.5~19.5% | 8.0~12.0% | 0.10% | Remainder |
304H | 0.04~0.10% | 2.0% | 0.75% | 0.045% | 0.03% | 18.0~20.0% | 8.0~10.5% | - | Remainder |
MECHANICAL PROPERTIES
Grade |
Tensile Strength (MPa) Min
|
Yield Strength 0.2% Proof (MPa) Min
|
Elongation (%in 50mm) Min |
Hardness | |
Rockwell B (HR B) Max |
Brinell (HB) Max |
||||
304 | 515 | 205 | 40 | 92 | 201 |
304L | 485 | 170 | 40 | 92 | 201 |
304H | 515 | 205 | 40 | 92 | 201 |
304/304L/304H COMMON APPLICATIONS