420 Stainless Steel Sheet Coil AMS 5506, ASTM A240
420 Stainless Steel Sheet Coil AMS 5506, ASTM A240 overview
Grade 420 stainless steel is a high-carbon steel with a minimum chromium content of 12%. Like any other stainless steel, grade 420 can also be hardened through heat treatment. It offers good ductility in its annealed state and excellent corrosion resistance properties when the metal is polished, surface grounded or hardened. This grade has the highest hardness - 50HRC - among all the stainless steel grades with 12% chromium.
Stainless steel grades that are similar to grade 420 stainless steels include martensitic steels such as the other versions of grade 420, having vanadium, sulphur and molybdenum in their composition, and the grade 440 series. Non-standard grade 420C has carbon content that is little higher than that of grade 420.
Martensitic stainless steels are ones with high hardness and high carbon content. These steels are generally fabricated using methods that require hardening and tempering treatments. The operating conditions of martensitic steels are affected by loss of material’s strength at high temperatures, and decrease in ductility at negative temperatures.
| Grade | UNS No | Old British | Euronorm | Swedish SS | Japanese JIS |
| BS | En | No | Name |
| 420 | S42000 | 420S37 | 56C | 1.4021 | X20Cr13 | 2303 | SUS 420J1 |
PRODUCT FORMS:
Coil , Sheet, plate , Strip .wire ,- Profile, Round, Flat, Square tube ,Pipes
Specififcation:
420 Stainless Steel Strip, Coil, Foil, Wire, AMS 5506, ASTM A240
Possible alternative grades of grade 420 stainless steels
| Grade | Reasons for choosing grade 420 |
| 410 | Only a lower hardened strength is needed. |
| 416 | High machinability is required, and the lower hardened strength and lower corrosion resistance of 416 is acceptable. |
| 440C | A higher hardened strength or hardness than can be obtained from 420 is needed. |
| "Specials" | Variations of 420 are available to special order. These offer higher hardness, corrosion resistance and machinability for particular applications. |
Some other major specification at a glance
| | ASTM | JIS | AISI | EN |
| Grade | S30100 | SUS301 | 301 | 1.431 |
| S30400 | SUS304 | 304 | 1.4301 |
| S30403 | - | 304L | 1.4307 |
| S31008 | SUS310S | 310S | 1.4845 |
| S31603 | - | 316L | 1.4404 |
| S32100 | SUS321 | 321 | 1.4541 |
| S41008 | SUS410S | 410S | - |
| S43000 | SUS430 | 430 | 1.4016 |
| S43932 | - | - | 1.451 |
| S44400 | SUS444 | 444 | 1.4521 |
| S44500 | SUS430J1L | - | - |
Dimension Ranges:
| Width | Thickness | Inner Diameter | Steel Grade | Surface Finish |
| 610~2030 mm | 0.15~3.0 mm | 610 or 508 +0/-5 mm | 201; 254 SMO; 301; 301 AL; 301Si; 302; 303; 303 SE; 304; 304 L; 304 LV; 304 V; 3049; 305;30512; 308; 309; 309 S; 309 SCB; 310; 310 S; 316; 316 L; 316 LN; 316 Ti; 317; 317 L; 321; 330; 347; 384; 405; 409; 410; 410 S; 414;416; 416 SE; 420; 420 A; 420 HC; 420 LC; 420 MO; 430; 430Li; 434; 436; 439; 440 A; 440 C; 441; 442; 444; 446; 18 SR1;Carpenter 20,CB32; Carpenter 4552; Custom 450; 18-9LW1; 19-90L4; Greek Ascology;; AL-6XN4; 904L; Duplex 2205; Duplex 2304; Duplex 2507,Nickel alloys , Titanium and Ti alloys | 2B, 2D, BA, No.3, No.4, No.5, SB, HL |
| 610~2030 mm | 2.5mm~10 mm | 610 or 508 +0/-5 mm | | No.1 or As requied |
Coil Slitting Mill Capability :
Striping processing, commonly known as “slitting “, refers to the winding of a metal coil by unwinding, slitting, leveling, winding, and processing into a desired width. Slitting processing is a basic metal processing technology that combines high-quality equipment with skilled craftsmanship. it can be obtained with strict tolerance, perfect surface control , safe packaging as well as fine transportation.
- Max thickness: 18 mm
- Min thickness: 0.1 mm
- Max width: 2150 mm
- Min width: 8 mm
- Width tolerance: 0 – 0.1 mm
- Burr: T<1mm: ≤0.05mm; T≥1mm: ≤5%T
CHEMISTRY TYPICAL
Carbon: 0.30-0.40
Manganese: 1.00 max
Silicon: 1.00 max
Chromium: 12.00-14.00
Nickel: 0.50 max
Molybdenum: 0.50 max
Phosphorus: 0.040 max
Sulfur: 0.030 max
Copper: 0.50 max
Aluminum: 0.15 max
Tin: 0.050 max
Iron: Balance
PHYSICAL PROPERTIES
Density: 0.28 lbs/in3 7.74 g/cm3 Electrical Resistivity: microhm-in (microhm-cm): 68 °F (20 °C): 21.71 (55.0)
Specific Heat: BTU/lb/° F (kJ/kg•K):
32 - 212 ° F (0 - 100 °C): 0.11 (0.46)
Thermal Conductivity: BTU/hr/ft2/ft/° F (W/m•K):
At 212 ° F (100 °C): 14.4 (24.9)
At 932 ° F (500 °C): 16.6 (28.7)
Mean Coefficient of Thermal Expansion: in/in/° F (µm/m•K)
32 - 212 ° F (0 - 100 °C): 5.7 x 10·6 (10.2)
32 - 1200 ° F (0- 649 °C): 6.8 x 10·6 (12.1)
Modulus of Elasticity: ksi (MPa)
29 x 103 (200 x 103) in tension
Magnetic Permeability: Magnetic
Melting Range: 2723 ° F (1495 °C)
MECHANICAL PROPERTIES AT ROOM TEMPERATURE
PROPERTIES: ANNEALED
Ultimate Tensile Strength: 100 KSI max (690 MPa max)
Elongation: 15% min
Hardness: B 96 max
PROPERTIES: TEMPERED
Type 420 can be cold rolled to various tempers.
AISI 420 equivalents |
| ASTM A176 Grade 420 | JIS SUS 420J1 |
| ASTM A276 Grade S42000 | JIS SUS420J1FB |
| ASTM A314 Grade S42000 | JIS SUS420J1TKA |
| ASTM A473 Grade 420 | EN X20Cr13 |
| ASTM A580 Grade S42000 | EN 1.4021 |
| ASTM A582 Grade S42023 | ISO 20Cr13 |
| ASTM A895 Grade S42020 | GOST 20Ch13 |
| ASTM A895 Grade S42023 | GB 2Cr13 |
| ASTM A959 Grade S42000 | UNS S42000 |
| ASTM A959 Grade S42020 | DIN 1.4031 |
| ASTM A959 Grade S42023 | BS 420S45 |
| DIN 1.4021 | SS 2304 |
| DIN X20Cr13 | EN X39Cr13 |
| DIN X30Cr13 | EN 1.4031 |
| AFNOR Z20C13 | DIN 1.4034 |
| BS 420S37 | DIN X46Cr13 |
| BS 420S29 | AFNOR Z44C14 |
| UNI X20Cr13 | UNI X40Cr14 |
| SS 2303 | UNE F.3405 |
| SAE 420 | EN X46Cr13 |
| JIS SUS420J1 | EN 1.4034 |
| GOST 40Ch13 | ISO X46Cr13 |
| Grade | Why it might be chosen instead of 302HQ |
| 304L | A higher work hardening rate can be tolerated - or is needed. |
| 316L | Higher resistance to pitting and crevice corrosion is required in chloride environments; the higher work hardening rate of 316L is acceptable. |
| 430 | A lower cost is required, and the reduced corrosion resistance of 430 is acceptable. |
Packaging (details)
1. Pallets with several coils
1.1 Coils packed eye to sky on one-way pallet with spacers without pallet cover.
1.2 Coils packed eye to sky on one-way pallet with spacers and covered with shrink-wrap.
1.3 Coils packed eye to sky on one-way pallet with spacers and covered with paper hood.
1.4 Coils packed eye to sky on one-way pallet with spacers and covered with wooden box.
1.5 Coils packed eye to sky on pallet with spacers without cover.
1.6 Coils packed eye to sky on pallet with spacers and shrink wrap.
1.7 Coils packed eye to sky on pallet with spacers and paper hood.
2. Pallet with single coil
2.1 Coil packed eye to sky on one-way-pallet without cover.
2.2 Coil packed eye to sky on one-way-pallet with shrink wrap.
2.3 Coil packed eye to sky on one-way-pallet with paper hood.
2.4 Coil packed eye to sky on one-way-pallet with wooden box.
2.5 Coil packed eye to sky on pallet without cover.
2.6 Coil packed eye to sky on pallet with shrink wrap.
2.7 Coil packed eye to sky on pallet with paper hood.
3. Pallets with multistrip
3.1 Multistrip on one-way pallet.
4. Coils standing, unpacked
5. Pallets with spools, standing with horizontal axe
5.1 Wooden spool on one-way pallet standing with horizontal (eye to the wall) axe.
5.2 Cardboard spool (cardboard core and cardboard sheet) on one-way pallet standing (eye to the wall).
6. Cut lengths
6.1 Bundled.
6.2 On wooden boards.
6.3 In wooden boxes.
7. Special customer requests for packaging
7.1 Weight per packing unit.
7.2 Design and size of pallet.
7.3 Number and kind of coil tying.
7.4 Number and kind of interleaving spacer strips.
7.5 Corrosion protection.
7.6 Kind of wood and wood protection used.
7.7 Marking of material and packing.
Q: Would you provide samples For free?
A: Yes . with on stock specification We provide samples For Free . Freight charge collect
Q:What information should i provide to source for the right products ?
A: Material grade, width, thickness, coating and Purchase quantity , Expected lead time ,etc
Q:What are the shipping ports?
A:Under normal circumstances, we ship from Shanghai, Tianjin, Qingdao, Ningbo ports, you
can choose other ports according to your needs.
Q:About product prices?
A:Prices vary from period to period due to cyclical changes in the price of raw materials.
Q:How long does your delivery time take?
A:In general, our delivery time is within 5-45 days, and may be delayed if the demand is extremely
large or special circumstances occur.
Q:Can I visit your location?
A:Of course, we welcome customers from all over the world to visit our factory. However, some
of the plants are not open to the public.
Q:Does the product have quality inspection before loading?
A:Of course, all our products are strictly tested for quality before packaging, and unqualified
products will be destroyed.
Q:How to pack the products?
A:The inner layer has a waterproof paper outer layer with iron packaging and is fixed with a fumigation
wooden pallet. It can effectively protect products from corrosion during ocean transportation.
Q:What is your working time?
A:In general, our online service time is Beijing time: 8:00-22:00, after 22:00,
we will reply to your inquiry during the next working day.
