AISI/ASTM321 Stainless Steel Plate With Strong Wear Resistance Used
In Organic Or Inorganic Acid
1. Description
321 stainless steel is a Ni Cr Ti austenitic stainless steel, its
performance is very similar to 304. Because of the addition of
titanium, it has better resistance to grain boundary corrosion and
high temperature strength, and effectively controls the formation
of chromium carbide. Among them, Ti is a stable element, but it is
also a hot steel, which is much better than 316L in high
temperature. 321 stainless steel has good wear resistance in
organic acid and inorganic acid of different concentration and
temperature, especially in oxidizing medium, It is used in the
lining and transmission pipeline of various heat-resistant
equipment, wear-resistant acid container and wear-resistant
equipment, and in the key parts of heat exchange equipment of
high-temperature boiler.
Performance advantages of 321 stainless steel
1) It has good wear resistance in oxidizing medium;
2) Better grain boundary corrosion resistance and high temperature
strength;
3) Excellent high temperature stress fracture performance;
4) Excellent creep resistance at high temperature.
Thickness that we offer
1) Thin plate (0.2mm-4mm)
2) Medium plate (4mm-20mm)
3) Thick plate (20mm-60mm)
4) Extra thick plate (60-115mm)
2. Chemical composition
| AISI/ASTM321 | C | Mn | P | S | Si | Cr | Ni | Ti |
| less then % | 0.08 | 2 | 0.035 | 0.03 | 1 | 17.00～19.00 | 9.00～12.00 | 5×C-0.7 |
3. Physical Properties
| Density | 7.93 g / cm3 |
| Tensile strength σ B (MPA) | ≥ 520 |
| Conditional yield strength σ 0.2 (MPA) | ≥ 205 |
| Elongation δ 5 (%) | ≥ 40 |
| Reduction of area ψ (%) | ≥ 50 |
| Hardness | < 187hb; < 90hrb; < 200hv |
4. Delivery surface states
We offer various surface treatment states. Normally,
No1,1D,2D,2B,No.3,No.4,HL,BA and Mirror.
No.1 - A rough, matte surface that is hot rolled to a specified
thickness, annealed, and descaled for use without surface gloss
1D - the surface has discontinuous particles, also known as fog
surface. Processing technology: hot rolling + annealing shot
peening pickling + cold rolling + annealing pickling.
2D - slightly glossy silver white. Processing technology: hot rolling +
annealing shot peening pickling + cold rolling + annealing
pickling.
2B - silvery white, better gloss and flatness than 2D surface.
Processing technology: hot rolling + annealing shot peening
pickling + cold rolling + annealing pickling + quenching and
tempering rolling.
BA - excellent surface gloss, high reflectivity, like mirror surface.
Processing technology: hot rolling + annealing shot peening
pickling + cold rolling + annealing pickling + surface polishing +
quenching and tempering rolling.
NO.3 - good glossiness and rough surface. Processing technology:
polishing and tempering rolling of 2D products or 2B with 100-120
abrasive materials (JIS R6002).
NO.4 - good glossiness and fine lines on the surface. Processing
technology: polishing and tempering rolling of 2D products or 2B
with 150-180 abrasive material (JIS R6002).
HL - silver gray with hairline. Processing technology: polishing 2D or
2B products with appropriate abrasive materials to make the surface
appear continuous grinding lines.
Mirro - in mirror state. Processing technology: grind and polish 2D or 2B
products with appropriate abrasive materials to mirror effect.
5. Details picture
6. Standards table
| CHINA | USA | JAPAN | GEMANY |
| GB | AISI/ASTM | UNS代号 | JIS | DIN17006 | DIN17007 |
| 0Cr18Ni9 | 304 | S30400 | SUS 304 | X5CrNi18-10 | 1.4301 |
| (0Cr19Ni9) | | | | | |
| 0Cr19Ni10 | 304L | S30403 | SUS 304L | X2CrNi19-11 | 1.4306 |
| (00Cr18Ni10) | | | | | |
| 0Cr25Ni20 | 310S | S31008 | SUS 310S | X12CrNi25-21 | 1.4845 |
| 0Cr17Ni12Mo2 | 316 | S31600 | SUS 316 | X5CrNiMo17-12-2 | 1.4401 |
| | | | | X5CrNiMo17-13-3 | 1.4436 |
| 00Cr17Ni14Mo2 | 316L | S31603 | SUS 304L | X2CrNiMo18-14-3 | 1.4435 |
| 0Cr19Ni13Mo3 | 317 | S31700 | SUS 317 | X2CrNiMo17-13-3 | 1.4439 |
| 00Cr19Ni13Mo3 | 317L | S3703 | SUS 317L | X2CrNiMo18-16-4 | 1.4438 |
| (00Cr17Ni14Mo3) | | | | | |
| (1Cr18Ni9Ti) | | | | X12CrNi18-9 | 1.4878 |
| 0Cr18Ni10Ti | 321 | S32100 | SUS 321 | X6CrNiTi18-10 | 1.4541 |
| 0Cr18Ni11Nb | 347 | S34700 | SUS 347 | X6CrNiNb18-10 | 1.455 |
| 00Cr22Ni5Mo3N | | S31803 | DP2 | | 1.4462 |
