SS316 4000MM OD 3.5MM Stainless Steel Metal Pipe Tubing For Handrails
Ss316 4000mm OD Flexible Large Diameter Stainless Steel Metal Pipe
There are three phases of iron formation
Ferrite, or alpha iron, (α) is the standard grain formed at temperatures below 912°C.
Austenite, or gamma iron, (γ), has more densely-packed grain crystals and appears between 912–1394°C.
Delta iron (δ) forms at heats above 1395°C, before iron turns to liquid at 1538°C. The delta iron phase more closely resembles α-iron, or ferrite.
Care and maintenance of stainless steel
Although stainless steel is rust-resistant, it is not impervious. Its corrosion resistance is based on its passivation layer, which can be disturbed chemically. Salts, acids, scratches that hold moisture, and iron deposits can cause stainless steel to become vulnerable to rust.
Care must be taken when installing stainless: steel tools can change the surface chemistry of the steel by leaving behind iron deposits that make the surface vulnerable. Any place that has come into contact with steel should be cleaned. Deep scratches that could hold moisture should be avoided.
Common uses for 316 stainless steel:
Industrial equipment as used in:
Pharmaceutical manufacturing
Chemical manufacturing
Industrial and chemical transportation
Pressure vessels
Cisterns and pipes for chemical applications
Medical equipment where non-surgical steel
Marine equipment
Outdoor site furnishings
Commercial kitchens
Food production and processing in saline environments
Commercial appliances
Natural corrosion resistance
Stainless Steel Metal Pipe Specification
| Name |
Ss316 4000mm OD Flexible Large Diameter Stainless Steel Metal Pipe |
|||
| Items | 316 | |||
| Standard | ASTM A554 | |||
| Material Grade |
316L:Ni10%,Cr16% |
|||
| Outer Diameter | 4000mm | |||
| Thickness | 3.5mm | |||
| Length | 2.5m, or as customers' request | |||
| Tolerance | a) Outer Diameter: +/- 0.2mm | |||
| b) Thickness: +/- 0.03mm | ||||
| c) Length: +/- 5mm | ||||
| Surface | Seamless welded and polished | |||
| sandblasting | ||||
| Application | tableware,Cooking tools,Decoration,Industry | |||
| 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 | ≤1.01 | |
| Mn | 5.5-7.6 | 2.00 | ≤2.01 | |
| P | ≤0.07 | ≤0.045 | ≤0.045 | |
| S | ≤0.03 | ≤0.03 | ≤0.03 | |
| Cr | 16-18 | 16-18 | 18-21 | |
| Ni | 3.5-5.5 | 10-15 | 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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