Deep Drawn Stainless Steel Sheet Metal Stock Thin SS 304 Grade 2b Finish
Continuous casting slab or slab slab is used as raw material, heated by step heating furnace, dewatered by high pressure water and then into rough rolling mill.The rough rolling material passes through the cutting head and tail and then enters the finishing mill to carry out computer controlled rolling. After the final rolling, it is subjected to laminar cooling (computer controlled cooling rate) and coiler winding, which becomes a straight hair roll. The head and tail of the straight hair roll are often in the shape of a tongue and a fishtail. The thickness and width are poorly accurate, and the side has frequent defects such as a wave shape, a folded edge, and a tower shape. The weight of the coil is heavier and the inner diameter of the coil is 760 mm.
| Hot rolled plate | ||||
| Specification (Thick) | Big Deviation | Normal Deviation | Small Deviation | No Deviation |
| 3.0mm | 2.6mm-2.75mm | 2.75mm-2.85mm | 2.86mm-2.9mm | no less than 2.9mm |
| 4.0mm | 3.5mm-3.6mm | 3.6mm-3.75mm | 3.76mm-3.95mm | no less than 3.95mm |
| 5.0mm | 4.5mm-4.6mm | 4.6mm-4.75mm | 4.75mm-4.95mm | no less than 4.95mm |
| 6.0mm | 5.4mm-5.6mm | 5.6mm-5.75mm | 5.75mm-5.85mm | no less than 5.85mm |
| 8.0mm | 7.3mm-7.5mm | 7.5mm-7.65mm | 7.65mm-7.85mm | no less than 7.85mm |
| 10.0mm | 9.2mm-9.3mm | 9.3mm-9.6mm | 9.6mm-9.85mm | no less than 9.85mm |
| 12.0mm | 11.1mm-11.2mm | 11.2mm-11.6mm | 11.6mm-11.85mm | no less than 11.85mm |
| 14.0mm | 13.1mm-13.2mm | 13.2mm-13.6mm | 13.6mm-13.85mm | no less than 13.85mm |
Hot-rolled sheet has relatively low strength, poor surface quality (low oxidation/smoothness), but good plasticity, generally medium and heavy plate, cold-rolled sheet: high strength, high hardness, high surface finish, generally thin sheet, can be used as stamping With the board.
Hot-rolled steel sheet, mechanical properties are far less than cold processing, second only to forging, but with good toughness and ductility
Heat Resistance :
Grade 430 resists oxidation in intermittent service up to 870°C and to 815°C in continuous service. This grade may become brittle at room temperature after prolonged heating in the 400-600°C range. This effect can be eliminated by annealing.
| 304 stainless steel chemical composition | ||||||||
| Grade | C | Si | Mn | Cr | N | P | S | Ni |
| 304 | ≤0.12 | ≤0.75 | ≤1.00 | 16.00~18.00 | - | ≤0.040 | ≤0.03 | ≤0.60 |
| 304 physical properties | ||
| 304 | Density : | 7.75g/cm3 |
| Melting point: | 1427ºC | |
| Tensile Strength: | σb (MPa)≥450 | |
| Yield strength : | σ0.2 (MPa)≥205 | |
| 304 Chemical composition | ||||||
| C | Si | Mn | Cr | Ni | S | P |
| 0.15 | ≤1.0 | ≤1.0 | 11.5~13.5 | ≤0.03 | ≤0.04 | |
| 304 Chemical composition | |||
| C | Si | Mn | Cr |
| 0.15 | ≤1.0 | ≤1.0 | 11.5~13.5 |
| mechanical properties | |||
| Tensile strength σb (MPa) | Conditions yield strength 0.2 sigma (MPa) | Elongation % (min) | Hardness |
| 260 | 470 | 30 | ≤210HV |
Welding
Excellent weldability by all standard fusion and resistance methods, both with and without filler metals. Heavy welded sections in Grade 201 require post-weld annealing for maximum corrosion resistance.
Machining
Stainless steel tends to work harden if machined too quickly. For this reason low speeds and constant feed rates are recommended.
FAQ
Q1. How long can make delivery?
A: For stock products,will make shipments in 2-5 days after receiving deposit or receiving T/T;
for products need new production for common materials,usually make shipments in 7-10 days;
for products need special and rare materials,usually need 15-20 days to make shipment.
Q2. Can you provide the samples?
A:Samples can be provided with samples' charge and courier fee by the buyer's side.
Q3. What's your payment terms?
A: Down payments 30%TT and balance 70% TT or L/C.
Q4. How do you ship the goods and how long does it take to arrive?
A: We usually ship by DHL, UPS, FedEx or TNT. It usually takes 3-5 days to arrive.
Airline and sea shipping also optional.
For mass products, ship freight is prefered.
Q5. Can you accept customize?
A: Yes. It can be customized as per the customers' request.
Q6. How to ensure the quality?
A:Mill Test Certificate is supplied with shipment.
If needed, a Third Party Inspection is acceptable or SGS.