ASTM A240 Plate

Suppliers of Stainless Steel ASTM A-240 Sheet and ASTM A240 304l Plate

The ASTM A240 Plate corresponds to a specification that caters to chromium and chromium alloy steel grades such as 304 or 316. While the grade of steel utilized for alloy strictly depends on the application, namely the kind of chemical exposure, and primary characteristics of the application i.e. - tensile strength and resistance to corrosion. Suppose if the price is the key factor in the application, most suppliers prefer using grade 304 as the material grade for ASTM A240 Foils. Grade 304 offers moderate to good resistance to corrosion with good tensile properties. However, if the application is one that requires to withstand much stronger conditions, say like seawater, then grade 316 ASTM A240 Clad Sheet would be the preferred choice for marine engineering purposes. This being said, the weldability properties of both grade 304 and 316 are good. But the higher content of carbon in the alloy of Stainless Steel ASTM A-240 Sheet prevents the alloys from reaching their whole potential with regards to their welding characteristics.


Luckily, most manufacturers can remedy this condition of the SS A240 Strips. Modified from the most versatile grades of stainless steel, the ASTM A240 304l Plate is characteristically similar to grade 304, with one small exception. Those stainless steel grades marked as L after the said grade is an indication of a low carbon alloy. Low carbon alloys are designed to cater to one specific property, that is weldability. Unlike the regular alloy grades, the Astm A240 316l Stainless Steel Plate does not accommodate the formation of grain boundary precipitates, particularly in the heat affected weld area. This, in turn, is what makes the alloy more resilient to corrosion that can occur after welding.

ASTM A240 Clad Sheet Dimensions Standard And Specification

Type Raw Material
304 18-8 Chromium Nickel Austenitic Stainless Steel
UNS S31803 Ferritic / Austenitic Duplex Stainless Steel
316L Low Carbon, Chromium Nickel Molybdenum Austenitic Stainless Steel
UNS S32750 Ferritic / Austenitic Super Duplex Stainless Steel
321 Titanium Stabalized 18-8 Chromium Nickel Austenitic Stainless Steel
410 12% Straight Chromium Martensitic Stainless Steel
UNS S31254 High Moly Austenitic Stainless Steel
904L High Nickel Molybdenum Super Austenitic Stainless Steel

Contact us to get SS A240 Strips, ASTM A240 Clad Sheet, Astm A240 316l Stainless Steel Plate free sample

ASME SA240 Sheet Chemical Resistance Guide

Element 304 316 321 410 904L S31803 S32750 S31254
Carbon 0.07 0.08 0.08 0.08 - 0.15 0.02 0.03 0.03 0.02
Nickel 8.00 - 10.50 10.00 - 14.00 9.00 - 12.00 0.75 23.00 - 28.00 4.50 - 6.50 6.00 - 8.00 17.50 - 18.50
Silicon 0.75 0.75 0.75 1.00 1.00 1.00 0.80 0.80
Nitrogen 0.10 max 0.10 max 0.10 max ... 0.10 max 0.08 - 0.20 0.24 - 0.32 0.18 - 0.25
Manganese, max 2.00 2.00 2.00 1.00 2.00 2.00 1.20 1.00
Copper, max ... ... ... ... 1.00 - 2.00 ... 0.50 0.50 - 1.00
Phosphorus, max 0.045 0.045 0.045 0.040 0.045 0.030 0.035 0.030
Molybdenum ... 2.00 - 3.00 ... ... 4.00 - 5.00 2.50 - 3.50 3.00 - 5.00 6.00 - 6.50
Sulfur, max 0.030 0.030 0.030 0.030 0.035 0.020 0.020 0.010
Chromium 17.50 - 19.50 16.00 - 18.00 17.00 - 19.00 11.50 - 13.50 19.00 - 23.00 21.00 - 23.00 24.00 - 26.00 19.50 - 20.50
Titanium ... ... 5 x (C+N) - 0.70 ... ... ... ... ...

Stainless Steel ASTM A240 Plate Mechanical Analysis

Type Yield Strength, ksi,
min
Hardness,
maxA
Tensile Strength, ksi,
min
Elongation, %
min
304 30 201 HBW or 92 HRB 75 40
316 30 217 HBW or 95 HRB 75 40
321 30 217 HBW or 95 HRB 75 40
410 30 217 HBW or 96 HRB 65 20
904L 31 95 HRB 71 35
UNS S31803 65 293 HBW or 31 HRC 90 25
UNS S32750 80 310 HBW or 32 HRC 116 15
UNS S31254 45 223 HBW or 96 HRB 100 35