321 Stainless Steel Strip

321-stainless-steel-strip

321 Stainless Steel Strip

Quality Stainless Steel Strip Grade:
ASTM 321
JIS SUS321
EN 1.4541

321 Stainless Steel Strip Specifications

  1. Grade: 321
  2. Standard: ASTM/EN/JIS
  3. Thickness: 0.03mm-3.0 mm
  4. Width: 1.5mm-600 mm
  5. Length: coil type or it can be produced as customer requirements
  6. Surface Finish: NO.1, 2B, 2H(Rerolled Bright), BA, No.4, 8K (Mirror), HL (Hairline), Polishing Bright, etc
  7. Edge: Mill Edge, Slit Edge, Deburred Edge, Round Edge, V Type Edge

321 Stainless Steel Strip Introductions

321 stainless steel strip is a Ni-Cr-Mo austenitic stainless steel material, its performance is very similar to 304 stainless steel strip.

But due to the addition of alloy titanium content, it has better resistance to grain boundary corrosion and high temperature strength. It effectively controls the formation of chromium carbide.

321 austenitic stainless steel strip has good corrosion resistance in the atmosphere and is widely used in petrochemical, electric power, bridge and automobile industries.

However, the “stainlessness” of 321 stainless steel is not absolute. Due to the special service environment, 321 stainless steel will also corrode.
Factors such as medium concentration, PH value, and temperature will have a greater impact on the corrosion resistance of 321 stainless steel.

321 Stainless Steel Strip Applications

321 stainless steel strip is applied to the field machines in the chemical, coal, and petroleum industries that require high resistance to grain boundary corrosion, heat-resistant parts for building materials and parts with difficult heat treatment.
1. Petroleum waste gas combustion pipeline
2. Engine exhaust pipe
3. Boiler shell, heat exchanger, heating furnace parts
4. Silencer parts for diesel engines
5. Boiler pressure vessel
6. Chemical transport truck
7. Expansion joint
8. Spiral welded pipes for furnace and dryers

321 Stainless Steel Strip Chemical Composition

The chemical components of grade 321 stainless steel strip is summarized in the following table:

GradeStandardCSiMnPSCrNiMo
321ASTM A240≤0.08≤1.00≤2.00≤0.045≤0.03017.00-19.009.00-12.00

321 Stainless Steel Mother Coil Mechanical Property

Below The Table Is For Your Reference:

GradeStandard
Yield Strength
Rp0.2 (N/mm²)
Tensile Strength
Rm (N/mm²)
Elongation %

Hardness
(HV)
Hardness
(HRB)
201ASTM A240
≥ 275
≥ 520
≥ 35
≤ 260
≤ 101
202ASTM A240
≥ 275≥ 520≥ 40≤ 218
≤ 95
301ASTM A240
≥ 205≥ 520≥ 40≤ 200≤ 90
304ASTM A240
≥ 205≥ 515
≥ 40≤ 210
≤ 92
304LASTM A240
≥ 205≥ 520
≥ 40≤ 200
≤ 90
316L
ASTM A240
≥ 177≥ 480
≥ 40≤ 200
≤ 90
316Ti
ASTM A240
≥ 205≥ 520
≥ 40≤ 200
≤ 90
317L
ASTM A240
≥ 205≥ 515
≥ 40≤ 218
≤ 95
309S
ASTM A240
≥ 205≥ 515≥ 40≤ 218≤ 95
310S
ASTM A240
≥ 205≥ 520
≥ 40≤ 200
≤ 90
321
ASTM A240
≥ 205≥ 520
≥ 40≤ 200
≤ 90
347
ASTM A240
≥ 205≥ 520
≥ 35≤ 200≤ 90
410S
ASTM A240
≥ 205≥ 440
≥ 20≤ 210
≤ 92
420J2
ASTM A240
≥ 225≥ 540
≥ 18≤ 180
≤ 80
430
ASTM A240
≥ 206≥ 450
≥ 22≤ 200
≤ 88
2205
ASTM A240
≥ 450≥ 620
≥ 25≤ 293
≤ 30
2507
ASTM A240
≥ 450≥ 620
≥ 25≤ 290
≤ 30
253 MA®ASTM
≥ 310≥ 600
≥ 40≤ 217
≤ 95
254 SMO®ASTM
≥ 300≥ 650
≥ 35≤ 223
≤ 96
654 SMO®ASTM
≥ 430≥ 750
≥ 40≤ 250
≤ 100
904L
ASTM
≥ 216≥ 490
≥ 35
≤ 90
UNS N08926ASTM
≥ 295≥ 650
≥ 35
≤ 100
UNS S17400ASTM≥ 725≥ 930
≥ 10

321 Stainless Steel Strip Production Tolerance

Below The Table Is For Your Reference:

Thickness Tolerance:

Thickness(mm)
Width<125mm
125mm≤Width<250mm
250mm≤Width<600mm
≥0.03-0.10
±0.06T
±0.10T
±0.10T
≥0.10-0.15
±0.01
±0.015
±0.020
≥0.15-0.20
±0.015
±0.020
±0.025
≥0.20-0.25
±0.015
±0.020
±0.025
≥0.25-0.30
±0.018

±0.025
±0.030
≥0.30-0.40
±0.020±0.025
±0.030
≥0.40-0.50
±0.025
±0.030
±0.040
≥0.50-0.60
±0.030
±0.030
±0.040
≥0.60-0.80
±0.030
±0.040
±0.040
≥0.80-1.00
±0.030
±0.040

±0.050
≥1.00-1.20
±0.040
±0.050±0.050
≥1.20-1.50
±0.050
±0.060±0.060
≥1.50-2.00
±0.060
±0.070±0.070
≥2.00-2.50
±0.070
±0.070±0.080
≥2.50-3.00

±0.080
±0.080±0.090

321 Stainless Steel Strip Packaging

Our company have professional team who can adopt developed packaging technology to assure no any damages of products during transportation.

  • Standard export packaging:
    Waterproof Paper Winding+PVC Film+Strap Banding+Wooden Pallet or Wooden Case;
  • Customized packaging as your request (Logo or other contents accepted to be printed on the packaging);
  • Other special packaging will be designed as customer’s request;
  • Eye to wall and eye to sky are both available;
  • By International Express: DHL/UPS/FEDEX/EMS and our own express line;
  • By air or By sea;
  • Shipping port: Shanghai, Ningbo or as your request.