Type 420 is a martensitic stainless steel that provides good corrosion resistance similar to 410 plus increased strength and hardness. It is magnetic in both the annealed and hardened conditions. Maximum corrosion resistance is attained only in the fully hardened condition. It is never used in the annealed condition.
Stainless Steel Sheet
- Yearly output 150,000 MT
- 15 years experience
- ASTM A240-480 SGS/ISO certified
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2-15 days Deliver
For most ss material，we have ready stock, from mother coil to cut to size sheet and plate. 2-15 days to deliver.
Much cheaper
With great stock，quotation much cheaper than Daming and most Asia distributors.
Payment guarantee
Worry free payment term, Sinosure insurance guaranteed, Alibaba payment guaranteed.
15 days Aftersales
For quality problem, we promise solution in 15 days for all clients. Once confirmed, we will refund immediately.
GM 24/7 standby
Mr Li, GM, personal wechat/whatasapp/0086-186-2174-2353, any question, 24/7/365standby
Collaborative Mills
01
Thickness Tolerance
Normally, different mills will apply 3 types tolerance, like 1.0mm, there will be 0.91-0.92mm/0.94-0.96mm/ 0.98-1.01mm. 3 stages to apply for different application.
02
Width Tolerance
Width tolerance mainly depends on the slitting and cutting machine. We use Taiwan and Italy machinery, which can guarantee +/-0.05 to +/-0.1mm
03
Diagonal Tolerance
Diagonal Tolerance is a key factor to show whether the cut is correct or not. The normal tolerance is +/-2mm。
ASTM A240/JIS Standard 4304
3.1 MTC is available once order confirmed，all of our products are conformed with JIS G4304 and ASTM A240 standard.
ASTM A240
JIS 4304
Available Grades
Available Size
ASTM A240
| Steel Grade | Ni% Max. | Cr% Max. | C% Max. | Si% Max. | Mn% Max. | P% Max. | S% Max. | Mo% Max. | Ti% Max. | Other |
|---|---|---|---|---|---|---|---|---|---|---|
| S30400 | 8.0~10.5 | 17.5~19.5 | 0.07 | 0.75 | 2 | 0.045 | 0.03 | – | – | N: 0.1 Max. |
| S30403 | 8.0~12.0 | 17.5~19.5 | 0.03 | 0.75 | 2 | 0.045 | 0.03 | – | – | N: 0.1 Max. |
| S31603 | 10.0~14.0 | 16.0~18.0 | 0.03 | 0.75 | 2 | 0.045 | 0.03 | 2.0~3.0 | – | N: 0.1 Max. |
| S43000 | 0.75 | 16.0~18.0 | 0.12 | 1 | 1 | 0.04 | 0.03 | – | – | – |
JIS 4304
Available Grades
| Great Britain BS970 | U.S.A AISI/SAE | Germany W-Nr Din | Italy UNI | Japan JIS | France AFNOR | Spain UNE |
|---|---|---|---|---|---|---|
| 17/4PH | ASTM A564 Grade 630 | 50049 1.4542 | – | – | Z7CNU 17-04 | – |
| 303S31 | 303 | 1.4305 X10CrNiS18-9 | X10CrNiS1809 | SUS303 | Z8CNF 18-09 | F.5308 |
| 304S11 | 304L | 1.4307 1.4306 X10CrNiS18-9 | X3CrNi1811 X2CrNi1811 | SCS19 SUS304L | Z1CN18-12 Z2CN18-10 | F.3503 |
| 304S15 | 304 | 1.4301 X5CrNi1810 | X5CrNi1810 | SUS304 | Z4CN19-10FF Z5CN17-08 | F.3504 |
| 316S31 | 316 | X5CrNiMo17133 | X5CrNiMo1713 X8CrNiMo1713 | SUS316 | Z6CND18-12-03 | – |
| 316S11 | 316L | 1.4404 X2CrNiMo17132 | X2CrNiMo1713 X8CrNiMo1713 | SUS316L | Z2CND17-12 Z2CND18-13 | F.3533 F.3537 |
| 321S31 | 321 | 1.4541 X6CrNiTi18-10 | X6CrNiTi1811 | SUS321 | Z6CNT18-10 | F.3523 |
| 310 | 310 310S | 1.4845 X12CrNi25-21 | X6CrNi2521 | SUH310 SUS310S | Z8CN25-20 Z12CN25-20 | – |
| 416S21 | 416 | 1.4005 X12CrS13 | X12CrS13 | SUS416 | Z11CF13 | F.3411 |
| 420S29 | – | 1.4024 X15Cr13 | – | SUS410J1 | Z13C13 | F.3415 |
| 420S37 | 420 | 1.4021 X20Cr13 | X20Cr13 | SUS420J1 | Z20C13 | F.3402 |
| 420S45 | 420F | 1.4028 1.4034 X30Cr13 | (G)X30Cr13 | SUS420J2 | Z30C13 Z33C13 | F.3403 |
| 410S21 | 410 | 1.4006 1.4000 X12Cr13 | X12Cr13 X109Cr13 | SUS410 | Z10C13 | F.3401 |
| 431S29 | 431 | 1.4057 X20CrNi172 | X16CrNi16 | SUS431 | Z15CN16-02 | F.3427 |
Available Size
| Thickness | Width | Length | Surface Finish |
|---|---|---|---|
| 15~85 mm | 914, 1219, 1524 mm | 3048, 6069 mm Max.10M | Black |
| 3~8 mm | 20~2000 mm | 3048, 6069 mm Max.10M | No.1 |
| 8 up ~ 60 mm | 30~2000 mm | Max. 6096 mm | No.1 |
| 0.23-3.0mm | 30-1524-2000mm | Max. 10M | 2B/No.4/HL/8K |
MTC from collaborative Mills
For each and every batch， Original MTC will be provided to guarantee the origin.
PVC Film
PVC film is one of the most important factor when purchasing stainless steel material. Basically, 3 types of PVC films are typically applied.
PE50/PE80 black and white film
This is the most widely used film, the thickness normally ranges from 50 micron to 80 microns. There will not be any special function except protection.,
Laser Film(Novacel 4228)
Laser cutting is often applied as a downstream processing. Laser film is a film that can undertake high temperature. If clients apply the wrong pvc, after laser cutting, the pvc will be wrinkled and sticky to the surface.
Transparent Film
There are normally 2 types of blue transparent film, one is the for deep drawing, another one is normal protection film.
Stainless Steel sheet/Plates Packing and Loading Solution
Film Attaching
The edge part should be clean and slit, no residues left.
Back side kraft paper
To make sure there is less moisture going into the pallet, water proof kraft paper should be applied.
Standard sheet package
A layer of wooden plate will be put on the top of the pallet. And 3*2 steel strip will be applied.
Block and bundles
Wooden blocks and bundles will apply on the loading of the pallets.
Top locating
If there are too many pallet in one column，the top part also need be strengthened.
Wooden box package
For stainless steel mirror sheet, we can also apply wooden box.
World projects
For these countries, local agant is available to offer face to face meeting
Email: [email protected]
Application of420 stainless steel plate
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