Nascent Pipe & Tubes is one of the well know supplier and dealer of Stainless Steel 304H Fasteners (Bolts / Nuts), which is made by selective alloying with manganese and nitrogen and may have a reduced tendency to gall. When parts of Stainless Steel 304H Hex Head Bolts are forced together, the oxide layer can be scraped off, allowing the parts to weld together. When forcibly disassembled, the welded Stainless Steel 304H Hex Head Nuts may be torn and pitted, a destructive effect known as galling
Galling in Stainless Steel 304H Square Bolts can be avoided by the use of dissimilar materials for the parts forced together, for example bronze or even different types of steels (martensitic against austenitic). However, Stainless Steel 304H Square Nuts is electrically connected in a humid, even mildly acidic environment may act as a voltaic pile and corrode faster. Additionally, threaded joints in Stainless Steel 304H U-Bolts may be lubricated to provide a film between the two parts and prevent galling.
Stainless Steel 304H Bolt/Nut Manufacturers, Stainless Steel 304H Bolt/Nut Suppliers, Stainless Steel 304H Bolt/Nut Stockists, Stainless Steel 304H Bolt/Nut Exporters
Stainless Steel 304H Bolt/Nut Manufacturers in India, Stainless Steel 304H Bolt/Nut Suppliers in India, Stainless Steel 304H Bolt/Nut Stockists in India, Stainless Steel 304H Bolt/Nut Exporters in India
Low – temperature carburizing is another option that virtually eliminates galling in Stainless Steel 304H Lock Nuts and allows the use of similar materials without the risk of corrosion and the need for lubrication.
Stainless Steel 304H Bolt/Nut Manufacturers In Mumbai, Stainless Steel 304H Bolt/Nut Suppliers In Mumbai, Stainless Steel 304H Bolt/Nut Stockists In Mumbai, Stainless Steel 304H Bolt/Nut Exporters In Mumbai
The layer in Stainless Steel 304H Eye Bolts is impervious to water and air, protecting the metal beneath, and this layer quickly reforms when the surface is scratched. This phenomenon in Stainless Steel 304H Eye Nuts is called passivation and is seen in other metals, such as aluminium and titanium.
SS 304H Bolt/Nut Specifications
| Specifications |
ASTM A 193 ASME SA 193 |
| Standard |
DIN, ASTM, BS and all International Standards |
| Length |
3 mm to 200 mm |
| Size |
M3 – M56 | 3/6″ to 2″ | Custom Sizes |
| Type |
Hex Head Bolts, Square Bolts, U bolts, Eye bolts, T bolt, Hex Bolt, Lag Bolts, Counter sunk Bolts, Hex Head nuts, Square nuts, Lock nuts, Eye nuts, wing nuts, T nuts, Panel Nuts, Coupling Nuts, Dome nuts, Acorn Nuts. |
304H Stainless Steel Bolt/Nut Chemical Composition
| Grade |
C |
Mn |
Si |
P |
S |
Cr |
Mo |
Ni |
N |
| 304H |
0.04-0.10 |
2.0 max |
0.75 max |
0.045 |
0.030 |
18.0-20.0 |
- |
8.0-10.5 |
– |
Stainless Steel 304H Bolt/Nut Mechanical Properties
| Grade |
Tensile Strength (MPa) min |
Yield Strength 0.2% Proof (MPa) min |
Elongation (% in 50mm) min |
Hardness Rockwell B (HR B) max |
Hardness Brinell (HB) max |
| 304H |
515 |
205 |
40 |
92 |
201 |
Stainless Steel 304H Bolt/Nut 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 |
| 304H |
8000 |
193 |
17.2 |
17.8 |
18.4 |
16.2 |
21.5 |
500 |
720 |
Equivalent Grades for 304H Stainless Steel Bolt/Nut
| AISI Grade Equivalent |
JIS Equivalent |
Stainless Steel Notation |
EN/DIN Numerical Equivalent |
UNS designation |
EN/DIN Symbolical Equivalent |
| AISI 304H |
SUS304H |
SS 304H |
EN 1.4948 |
UNS S30409 |
X2CrNiN18-10 |
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