304 Stainless Steel Pipes & Tubes
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- • 304 Stainless Steel Pipes & Tubes Specification
- • 304 Stainless Steel Pipes & Tubes Usage
- • 304 Stainless Steel Pipes & Tubes Packaging & Shipping
- • Our Inventory
304 Stainless Steel Pipes & Tubes Specification
Himesh Steel supplies welded austenitic, duplex and nickel alloy welded stainless steel pipes in accordance with:
- ASTM A312
- ASTM A358 Class 1, 2, 3, 4, 5
- ASTM A790
- ASTM A928 Class 1, 2, 3, 4, 5
- API5LC
- ASTM B775
- EN10217-7 TC 1/2
- Customer specification
Composition ranges for 304 grade stainless steel
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 |
|||
Mechanical Properties
Typical mechanical properties for grade 304 stainless steels are given in table 2.
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. | |||||
Physical Properties
Typical physical properties for annealed grade 304 stainless steels are given in table 3.
Table 3. Physical properties of 304 grade stainless steel in the annealed condition
Grade |
Density (kg/m3) |
Elastic Modulus (GPa) |
Mean Coefficient of Thermal Expansion (m/m/0C) |
Thermal Conductivity (W/m.K) |
Specific Heat 0-1000C (J/kg.K) |
Electrical Resistivity (n.m) |
|||
|---|---|---|---|---|---|---|---|---|---|
0-1000C |
0-3150C |
0-5380C |
at 1000C |
at 5000C |
|||||
304/L/H |
8000 |
193 |
17.2 |
17.8 |
18.4 |
16.2 |
21.5 |
500 |
720 |
304 Stainless Steel Pipes and Tubes Grade Specification Comparison
Approximate grade comparisons for 304 stainless steels are given in table 4.
Table 4. Grade specifications for 304 grade stainless steel
Grade |
UNS No |
Old British |
Euronorm |
Swedish SS |
Japanese JIS |
||
BS |
En |
No |
Name |
||||
304 |
S30400 |
304S31 |
58E |
1.4301 |
X5CrNi18-10 |
2332 |
SUS 304 |
304L |
S30403 |
304S11 |
- |
1.4306 |
X2CrNi19-11 |
2352 |
SUS 304L |
304H |
S30409 |
304S51 |
- |
1.4948 |
X6CrNi18-11 |
- |
- |
These comparisons are approximate only. The list is intended as a comparison of functionally similar materials not as a schedule of contractual equivalents. If exact equivalents are needed original specifications must be consulted. |
|||||||
304 Stainless Steel Pipes and Tubes Corrosion Resistance
304 Stainless Steel Pipes and Tubes Heat Resistance
Good oxidation resistance in intermittent service to 8700C and in continuous service to 9250C. Continuous use of 304 in the 425-8600C range is not recommended if subsequent aqueous corrosion resistance is important. Grade 304L is more resistant to carbide precipitation and can be heated into the above temperature range.
Grade 304H has higher strength at elevated temperatures so is often used for structural and pressure-containing applications at temperatures above about 5000C and up to about 8000C. 304H will become sensitised in the temperature range of 425-8600C; this is not a problem for high temperature applications, but will result in reduced aqueous corrosion resistance.
304 Stainless Steel Pipes and Tubes Heat Treatment
| No. | Material | Size | Sch. & Swg. | Specification |
| 1. | Seamless Pipe | 15 mm NB To 300 mm NB |
Sch. 5s, 10s, 40s, 80s, 160s, XXS | ASTM A-312 |
| 2. | Welded (ERW) Pipe | 15 mm NB To 300 mm NB |
Sch. 5s, 10, 40s & 80s |
ASTM A-312 |
| 3. | Welded (ERW) Pipe | 150 mm NB To 600 mm NB |
Sch. 5s, 10s, 40s & 80s |
ASTM A-358 |
| 4. | Seamless Tube | 6.35 mm OD To 101.6 mm OD |
20 Swg., 18 Swg., 16 Swg., 14 Swg., 12 Swg., 10 Swg. |
ASTM A-213 |
| 5. | Welded (ERW) Tube | 6.35 mm OD To 152 mm OD |
20 Swg., 18 Swg., 16 Swg., 14 Swg., 12 Swg., 10 Swg. |
ASTM A-249 |
| Note :- | |
| Product Name | 304 Stainless Steel Pipes & Tubes |
| Stainless Steel in Grade | TP 304, 304H, 304L, 304LN, 316, 316H, 316L, 316LN, 316Ti, 309, 310, 317L, 321, 347, 409, 410, 420, 430, 446, 202 Etc. |
| Special Tube & Pipes | Precision Tubes, Capillary Tube, Fabricated Pipe (with radiography) |
| In Form of | Round, Square, Rectangle, Oval, Coil, Flexible Pipe, Shaft, 'U' Shape, Hydraulic Tube etc. |
| In Length of | Standard length & In Cut length also. |
| Other Services | Draw & Expansion as per required Size & Length, Polish (Electro & Commercial) Heat Treatment, Bending, Anneling & Pickled, Sand Blasting, Machining Etc. |
| Test Certificate | Manufacturer Test Certificate / Laboratory Test Certificate from Govt. Approved Lab. / Under Third Party Inspection with Excise Gate Pass to avail Modvat benefit. |
| Specialize | Capillary Tube, Fabricated Pipe, Square & Rectangle & Other Odd Size. Heat Exchanger & Condenser Tubes |
304 Stainless Steel Pipes & Tubes Usage
304 Stainless Steel Pipes & Tubes are exclusively used in Chemical/Pharmaceutical, Oil and Gas, Medical, Food and Drink, Water, Architectural/Civil Engineering etc.
304 Stainless Steel Pipes & Tubes Packaging & Shipping
Packed 304 Stainless Steel Pipes & Tubes
Packed 304 Stainless Steel Pipes & Tubes
Overseas Packaging
Export packaging is geared towards the protection, handling and transport of 304 Stainless Steel Pipes & Tubes by air or sea freight and, as such, shares many characteristics with export and transport packaging. Utmost care must also be taken to make overseas packaging suitable for long periods of storage. It is important for overseas packaging to be designed with ease of handling in mind, so as to ensure 304 Stainless Steel Pipes & Tubes is treated with the utmost care at all times. Both ends of each crate will indicate the order no., heat no., dimensions, weight and bundles or as requested. We can also offer customized packaging for 304 Stainless Steel Pipes & Tubes as per customer's requirement.
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