ASTM A240 904L Hot Rolled And Cold Rolled Stainless Steel Plate Sheet
904L (N08904, 14539) super austenitic stainless steel contains 14.0-18.0% chromium, 24.0-26.0% nickel and 4.5% molybdenum. 904L super austenitic stainless steel belongs to low carbon, high nickel, molybdenum austenitic stainless steel. Suitable for sulfuric acid of various concentration below 70 C. It also has good corrosion resistance in acetic acid of any concentration and temperature under atmospheric pressure and in mixed acid of formic acid and acetic acid.
Surface Finish
| Definition and Application |
No.1 | The surface is finished by heat treatment and pickling or processes corresponding there to after hot rolling |
2D
| The finishes after cold rolling, by heat treatment, pickling or other equivalent treatment |
2B | The finish after cold rolling, by heat treatment, pickling or other equivalent treatment and lastly by cold rolling to give an appropriate luster |
BA | Cold rolled, bright annealed and skin-passed, the product have excellent brightness and good reflexivity like mirror |
NO.3 | Polished with abrasive belt of grit#100~#200,have better brightness with discontinuous coarse stria |
NO.4 | Polished with abrasive belt of grit#150~#180,have better brightness with discontinuous coarse stria |
HL | Polished with abrasive belt of grit#150~#320 on the NO.4 finish and has continuous streaks |
8K
| The product have excellent brightness and prefect reflexivity can be the mirror. |
Hot-Rolled Stainless Steel Plate:
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 |
Cold-Rolled Stainless Steel Plate:
a. Stretch good, toughness, but the price is more expensive;
b. Cold rolling processing surface without oxide skin, good quality;
c. Cold rolling is generally used in the production of strip, the rolling speed is high;
d. Cold rolling than the thickness of the high precision. Mechanical properties, surface and so on in the hot rolling;
e. Cold rolled steel coil due to a certain degree of work hardening, low toughness, but can achieve better yield ratio, used for cold-formed spring and other parts;
f. Cold coil yield point closer to the tensile strength, so the use of risk in the process of no predictability, when the load exceeds the allowable load prone to accidents
g. The surface of the cold rolled steel coil without plating is gray.
h. Cold rolled steel plate surface smoothness is higher than the hot rolled steel coil.
Cold rolled plate | |||||||
---|---|---|---|---|---|---|---|
Specification (Thick) | Big Deviation | Normal Deviation | Small Deviation | No Deviation | |||
0.4mm | 0.3mm-0.32mm | 0.33mm-0.37mm | 0.37mm-0.39mm | no less than 0.39mm | |||
0.5mm | 0.4mm-0.42mm | 0.43mm-0.47mm | 0.47mm-0.49mm | no less than 0.49mm | |||
0.6mm | 0.5mm-0.52mm | 0.53mm-0.56mm | 0.57mm-0.59mm | no less than 0.59mm | |||
0.7mm | 0.6mm-0.62mm | 0.63mm-0.67mm | 0.67mm-0.69mm | no less than 0.69mm | |||
0.8mm | 0.7mm-0.72mm | 0.73mm-0.77mm | 0.74mm-0.79mm | no less than 0.79mm | |||
0.9mm | 0.8mm-0.82mm | 0.83mm-0.87mm | 0.87mm-0.89mm | no less than 0.89mm | |||
1.0mm | 0.89mm-0.9mm | 0.91mm-0.94mm | 0.94mm-0.99mm | no less than 0.99mm | |||
1.2mm | 1.02mm-1.08mm | 1.09mm-1.15mm | 1.16mm-1.18mm | no less than 1.18mm | |||
1.5mm | 1.32mm-1.38mm | 1.39mm-1.45mm | 1.46mm-1.48mm | no less than 1.48mm | |||
2.0mm | 1.72mm-1.79mm | 1.8mm-1.86mm | 1.87mm-1.9mm | no less than 1.9mm | |||
2.5mm | 2.23mm-2.36mm | 2.32mm-2.42mm | 2.42mm-2.47mm | no less than 2.48mm | |||
3.0mm | 2.7mm-2.77mm | 2.78mm-2.85mm | 2.85mm-2.9mm | no less than 2.9mm |
Factory and Machinery Equipment :
We had our own factory to do slitting re-rolling and finish treatment machine,PVC and interleaving paper we will using with our machine for you,could protect stainless steel surface from damage or any scratches,
1. CNC Flame Cutting Machine
2. CNC Plasma Cutting Machine
3. CNC Laser Cutting Machine
4. Bending Machine
5. Shearing Machine
6. Punch Machine
7. Driving Machine
Packing
Cold Rolled waterproof paper and steel strip reinforcement,one package about 2 tons,Load in 20GP / 40GP
WHY US?
Q1. How do you control quality ?
A1: Mill Test Certification is supplied with shipment, Third Party Inspection is available.
Q2. What are the advantages of your company ?
A2: We have many professionals, technical personnel, more competitive prices and best after-dales service than other stainless steel companies.
Q3. How many coutries you already exported ?
A3: Exported to more than 50 countries mainly from America , Russia , UK , Kuwait, Egypt ,Brazil , UAE , Germany , Dubai , Saudi Arabia , Iran , Turkey , Jordan , Malaysia , Singapore , etc.
Q4. Can you provide sample ?
A4: Small samples in store and can provide the samples for free.
Customized samples will take about 5-7days