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ASTM Square Ss Railing Accessories Large Stainless Steel Pipe SS304L 410S
Hardness of 4130 steel
Hardness is a qualitative, comparative parameter that describes the response of a material to local surface deformation. There are many hardness scales that depend on standard hardness testing machines; for most alloys, the Rockwell indenter machine is used and each material is graded on the Rockwell hardness scales. There are three main scales (A, B, & C), where the Rockwell B hardness scale value is depicted in Table 1. For reference, the Rockwell B hardness of copper, a relatively soft metal, is 51. Type 4130 steel has a Rockwell hardness of 92, which is high for steel and shows why this material is so tough. A high hardness usually indicates increased stiffness, which is an ideal property for materials in compression.
Elongation at break is a measure of a material's ability to resist plastic deformation before its fracture point. It is found by pulling a test specimen apart and measuring the ratio of its initial length to its final length before fracture. Elongation at break is generally used to show how bendable a material is,
and/or how it withstands plastic deformation. This parameter is quite high in 4130 steel (25.5%), which shows the great workability of this alloy steel.
Stainless Steel Handrail Accessories Specification
Name | ASTM Square Ss Railing Accessories Large Stainless Steel Pipe SS304L 410S |
Items | 400 series |
Standard | ASTM A554 |
Width | 10mm |
Height | 10mm |
Thickness | 0.5mm |
Length | 1m, or as customers' request |
Tolerance | a) Outer Diameter: +/- 0.2mm |
b) Thickness: +/- 0.03mm | |
c) Length: +/- 5mm | |
Surface | annealing,pickling |
sandblasting | |
Application | industry,exhausting,welding,furniture,window |
Test | Squash test, extended test, water pressure test,heat treatment, NDT |
Chemical Component of 400 Series Stainless Steel Pipe
Mechanical Properties | Metric | English |
Ultimate Tensile Strength | 1750 MPa | 254000 psi |
Tensile Yield Strength | 1230 MPa | 186000 psi |
Hardness (Rockwell) | 58 | 58 |
Modulus of Elasticity | 200 GPa | 29000 ksi |
Charpy Impact | 19.0 J | 14.0 ft-lb |