Tp201 202 321 Bending Stainless Steel Tubing 3in Stainless Steel Tubing 400mm
Tp201 202 321 Bending Stainless Steel Tubing 3in Stainless Steel Tubing 400mm
About 400 series stainless steels
The 4xx class of stainless steels are alloyed with chromium and are ferritic or martensitic in structure. 440 steel actually refers to four types of steel: 440A, 440B, 440C and 440F steel, which only differ based on the level of carbon in their composition. All types of 440 steel are popular choices, but 440C steel is the most popular of the four, as it has the highest hardness. Below are the chemical
compositions of each type:
Common elements across all 440 steels:
16-18% chromium
1% Manganese
1% silicon
0.75% Molybdenum
0.04% Phosphorus
0.03% sulfur
Some percentage of Carbon
440A steel
0.6-0.75% Carbon
440B steel
0.75-0.95% Carbon
440C and 440F steels
0.95-1.20% Carbon
Stainless Steel Handrail Accessories Specification
| Name | Tp201 202 321 Bending Stainless Steel Tubing 3in Stainless Steel Tubing 400mm |
| Items | 201/304L STAINLESS STEEL PIPE |
| Standard | ASTM A554 |
| Material Grade | 201: Ni 0.7%--1% |
| 304: Ni 8%, Cr 18% | |
|
Width |
3 inch |
| Height | 3 inch |
| Thickness | 0.3mm |
| Length | 1.5m, 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 |
Elemental comparison of the different materials
| Chemical Composition of Material | Material | 201 | 316L | 304 |
| C | ≤0.15 | ≤0.035 | ≤0.08 | |
| Si | ≤1.00 | ≤1.00 | ≤1.00 | |
| Mn | 5.5-7.5 | 2 | ≤2.00 | |
| P | ≤0.06 | ≤0.045 | ≤0.045 | |
| S | ≤0.03 | ≤0.03 | ≤0.03 | |
| Cr | 16-18 | 16-18 | 18-20 | |
| Ni | 3.5-5.5 | 10-14 | 8-11 | |
| Mechanical Property | Material Item | 201 | 202 | |
| Tensile Strength | ≥535 | ≥520 | ||
| Yield Strength | ≥245 | ≥205 | ||
| Extension | ≥30% | ≥30% | ||
| Hardness (HV) | <253 | <253 |
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