304 Mechanical Properties
Properties | Tensile Strength | Yield Strength | Typical Yield | Typical Tensile | Yield strength & Yield point | Stainless Steel Tensile Strength | Bend Testing | Compression Testing | Difference Between Yield and Tensile | AISI Steel Yield Tensile | Strength Properties of Metals | Strength of Materials | Stress | Aluminum Mechanical Properties | Tensile Proof Stress Of Metric Bolts and Screws | Tensile Strength of Metric Nuts | Stainless Tensile Of Metric Bolts Screws
Physical Properties Stainless Steel Carbon Steel | Thermoplastics Physical Properties | British Standard Strength of Steel | Shear and Tensile | Elastic Properties Young Modulus | Stength European Standard | Ductility | Young’s Modulus | Non-Ferrous Modulus of Elasticity | Steel Bolts Strength | Iron Steel Modulus of Elasticity | Thermal Properties | Properties of Thermal | Thread Shear Calculator | Metals Properties | Stainless Steel Physical Properties | Definition Mechanical Properties
Room Temperature Mechanical Properties
Minimum mechanical properties for annealed Alloys 304 and 304L austenitic stainless steel tube as required by ASTM specifications A213 and ASME specification SA-213 are shown below.
| Property | Minimum Mechanical Properties Required by ASTM A213 & ASME SA-213 |
||
| 304 | 304L | 304H | |
| 0.2% Offset Yield Strength, psi MPa |
30,000 205 |
25,000 170 |
30,000 205 |
| Ultimate Tensile Strength, psi MPa |
75,000 515 |
70,000 485 |
75,000 515 |
| Percent Elongation in 2 in. or 51 mm |
40.0 |
40.0 |
40.0 |
| Hardness, Max., Brinell RB |
201 92 |
201 92 |
201 92 |
Low and Elevated Temperature Properties
Typical short time tensile property data for low and elevated temperatures are shown below. At temperatures of 1000°F (538°C) or higher, creep and stress rupture become considerations. Typical creep and stress rupture data are also shown below.
| Test Temperature |
0.2% Yield |
Tensile Strength |
Elongation | |||
| °F | °C | psi | (MPa) | psi | (MPa) | Percent in 2″ or 51mm |
| -423 | -253 | 100,000 | 690 | 250,000 | 1725 | 25 |
| -320 | -196 | 70,000 | 485 | 230,000 | 1585 | 35 |
| -100 | -79 | 50,000 | 354 | 150,000 | 1035 | 50 |
| 70 | 21 | 35,000 | 240 | 90,000 | 620 | 60 |
| 400 | 205 | 23,000 | 160 | 70,000 | 485 | 50 |
| 800 | 427 | 19,000 | 130 | 66,000 | 455 | 43 |
| 1200 | 650 | 15,500 | 105 | 48,000 | 330 | 34 |
| 1500 | 815 | 13,000 | 90 | 23,000 | 160 | 46 |
Impact Resistance
The annealed austenitic stainless steel tube maintain high impact resistance even at cryogenic temperatures, a property which, in combination with their low temperature strength and fabricability, has led to their use in handling liquified natural gas and other cryogenic environments. Typical Charpy V-notch impact data are shown below.
| Temperature | Charpy V-Notch Energy Absorbed | ||
| °F | °C | Foot – pounds | Joules |
| 75 | 23 | 150 | 200 |
| -320 | -196 | 85 | 115 |
| -425 | -254 | 85 | 115 |
Fatigue Strength
The fatigue strength or endurance limit is the maximum stress below which material is unlikely to fail in 10 million cycles in air environment. The fatigue strength for austenitic stainless steel, as a group, is typically about 35 percent of the tensile strength. Substantial variability in service results is experienced since additional variables influence fatigue strength. As examples – increased smoothness of surface improves strength, increased corrosivity of service environment decreases strength.
General Properties
Chemical Composition
Resistance to Corrosion
Physical Properties
Mechanical Properties
Welding
Heat Treatment
Cleaning
304/304L/304LN/304H Tubing and Pipe
S32304S31803S32205S32750Mechanical Properties
Brinell and Rockwell Hardness Conversion Chart
Hardness Testing General
Brinell Hardness Testing
Rockwell Hardness Testing
Vickers Hardness Testing
Carbon Low Alloy Steel and Cast Steel Hardness Conversion Table
Rockwell Rockwell Superficial Brinell Vickers Shore Hardness Conversion Table