SS 304 Locks contains a higher chromium and lower carbon content than different groupings. Non-appealing SS 304L Catch is the most versatile and the most thoroughly utilized of every single cemented steel, and has lower carbon content to limit carbide precipitation and is utilized in high-temperature applications. The compound approach of SS 304H Catch, nearby its mechanical properties, weldability and deterioration/oxidation look at give the best all show treated steel for somewhat insignificant expense.
Stainless Steel 304 / 304H / 304L Fasteners Specification
Grade |
Stainless Steel 304, 304H, 304L |
Specifications |
ASTM A193 / ASME SA193, DIN, ASTM, BS and all International Standards |
Length |
3mm to 200mm |
Size |
3/6″ to 2″, M3 – M56, Custom Sizes |
Form |
Nuts, Bolts, Washers, Screw |
Types |
Bolts, Nuts, Washers, Anchor Fasteners, Stud Bolts, Eye Bolt, Stud, Threaded Rod, Cotter Pin, Socket Screw, Fine Fasteners & Spares, Foundation Fasteners etc |
Stainless Steel 304/304H/304L Equivalent Grade
AISI Grade Equivalent |
JIS Equivalent |
Stainless Steel Notation |
EN/DIN Numerical Equivalent |
UNS |
EN/DIN Symbolical Equivalent |
AISI 304 |
SUS304 |
SS 304 |
EN 1.4301 |
UNS S30400 |
X4CrNi18-10 |
AISI 304L |
SUS304L |
SS 304L |
EN 1.4307 |
UNS S30403 |
X2CrNi18-9 |
AISI 304H |
SUS304H |
SS 304H |
EN 1.4948 |
UNS S30409 |
X2CrNiN18-10 |
Stainless Steel 304/304H/304L Chemical Composition
Grade |
C |
Mn |
Si |
P |
S |
Cr |
Mo |
Ni |
N |
|
304 |
min. |
– |
– |
– |
– |
– |
18.0 |
– |
8.0 |
– |
max. |
0.08 |
2.0 |
0.75 |
0.045 |
0.030 |
20.0 |
– |
10.5 |
0.10 |
|
304L |
min. |
– |
– |
– |
– |
– |
18.0 |
– |
8.0 |
– |
max. |
0.030 |
2.0 |
0.75 |
0.045 |
0.030 |
20.0 |
– |
12.0 |
0.10 |
|
304H |
min. |
0.04 |
– |
– |
– |
– |
18.0 |
– |
8.0 |
– |
max. |
0.10 |
2.0 |
0.75 |
0.045 |
0.030 |
20.0 |
– |
10.5 |
– |
Stainless Steel 304/304H/304L 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 |
304H also has a requirement for a grain size of ASTM No 7 or coarser. |
Stainless Steel 304/304H/304L Physical Properties
Grade |
Density (kg/m3) |
Elastic Modulus (GPa) |
Mean Coefficient of Thermal Expansion (m/m/°C) |
Thermal Conductivity (W/m.K) |
Specific Heat 0-100°C (J/kg.K) |
Electrical Resistivity(n</.m) |
|||
0-100°C |
0-315°C |
0-538°C |
at 100°C |
at 500°C |
|||||
304/L/H |
8000 |
193 |
17.2 |
17.8 |
18.4 |
16.2 |
21.5 |
500 |
720 |
Stainless Steel 304 Fasteners Inventory
Hexagon Bolts / Set Screws |
Stud Bolts |
Hexagon Nuts |
Socket Cap Screws |
DIN 931 |
BS4882 |
DIN 934 |
DIN 912 |
DIN 933 |
DIN 976 |
BS 1768 |
DIN 6912 |
BS 1768 |
BS 1769 |
DIN 7984 |
- |
UNI 5731 |
BS 1083 |
ANSI B18.3 |
- |
UNI 5739 |
BS 3692 |
ISO 4762 |
- |
ISO 4014 |
ISO 4032 |
UNI 5931 |
- |
ISO 4017 |
ISO 4033 |
BS 2470 |
- |
BS 1769 |
ANSI B18.2.2 |
BS 4168 |
- |
BS 3692 |
- | - | - |
ANSI B18.2.1 |
- | - | - |
Socket & Slotted Set Screws |
Socket & Slotted Countersunk Screws |
Studs |
Washers |
DIN 913 |
DIN 963 |
DIN 938 |
DIN 125 |
DIN 914 |
DIN 7991 |
DIN 939 |
DIN 9021 |
DIN 915 |
BS 4168 |
DIN 2510 |
BS 4320 |
DIN 916 |
BS 1981 |
BS 4439 |
BS 3410 |
DIN 551 |
BS 483 |
BS 2693 |
- |
DIN 553 |
BS 2470 |
Spring Washers |
- |
DIN 438 |
DIN 127 |
- | - |
BS 4168 |
BS 4464 |
- | - |
BS 1802 |
- | - | - |
Other Types of Stainless Steel 304 / 304H / 304L Fasteners
304L SS Flat Washers |
304 SS Finishing Washers |
ASTM A193 304L SS Structural Bolts |
SS 304H Collated Screw |
SS 304L Long Bolts |
304H Stainless Steel Fasteners |
SS 304 U Bolts |
SS 304H Thumb Screw |
SUS 304H Socket Head Screw |
304H Stainless Steel Socket Screw |
304L Stainless Steel Hex Nuts |
Astm A194 Grade 8A Heavy Hex Nuts |
A2 70 Stud Bolts |
304 SS spring washer |
304H Stainless Steel Nuts |
Astm A193 Grade B8 Studs |
SS 1.4307 Socket Hexagon Head Screw |
ASTM A193 304L SS Washer |
Stainless Steel 304H Threaded Stud |
DIN 1.4301 / 1.4306 / 307 Machine Screw |
Astm A193 Grade B8A Bolts |
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