403 Stainless Steel Pipe
Prime Mill Grade | Certified China Exporter & Factory Direct Supply

403 Stainless Steel Pipe - Technical Overview & Specifications
403 stainless steel has excellent mechanical properties, including high hardness, high strength and high wear resistance. It is commonly used in the manufacture of high hardness tools, cutting tools, bearings and valves and other industrial parts, especially in applications requiring corrosion resistance and wear resistance. In addition, 403 stainless steel can also be used in food processing equipment, chemical equipment, medical equipment and other fields to meet the requirements of corrosion resistance and mechanical properties.
Product Parameters
| Product Name | 403 Stainless Steel Pipe |
| Type | Steel Pipe |
| Outer diameter | Round Tube , 4mm-200mm |
| Square Tube | 10*10mm-100*100mm |
| Rectangular Tube | 10*20mm-50*100mm |
| Wall Thickness | 0.6mm-6.0mm |
| Length | 1-6 meters, Length can be customized |
| Standard | ASTM, AISI, JIS, GB, DIN , EN, etc. |
| Surface | Black, Bright Polished, Rough Turning, Matt Surface Treatment, No. 4. BA, etc. |
| Scope of Application | Common applications for stainless steel pipes include food processing, Textile operations, Breweries, Water treatment plants, Oil and gas processing, Fertilizers and pesticides, Chemical applications, Construction, Pharmaceuticals, Auto parts, etc. |
| Certificate | ISO, SGS, BV , etc. |
| Production Technology | Hot Rolling, Cold Rolling |
| Edge Processing | Edging, Trimming |
Chemical Composition
| C | Si | Mn | Cr | Ni | S | P |
|---|---|---|---|---|---|---|
| ≤ 0.15 | ≤ 0.5 | ≤1.0 | 11.5~13.0 | ≥ 0.6 | ≤ 0.03 | ≤ 0.04 |
Mechanical Properties
| Tensile Strength Kb (MPa) | Yield Strength σ0.2 (MPa) | Elongation D5 (%) | Hardness |
|---|---|---|---|
| ≥ 485 | ≥ 290 | ≥ 25 | ≤ 98HRB |
Physical Performance
| Density( g/cm³ ) | Modulus of Elasticity( Gpa ) | Coefficient of Thermal Expansion( 10 -6 /°C ) | Coefficient of Thermal Conductivity( W/m * K ) | Resistivity( 10 -6 Ω . m ) |
|---|---|---|---|---|
| 7 .80 | 190 | 9.9 | 21.5 | 740 |
International Standard Grade Comparison
| No | China | Japan | USA | South Korea | Germany | India | Australia | Taiwan, China | |
|---|---|---|---|---|---|---|---|---|---|
| GB | JIS | ASTM | UNS | KS | DIN | BIS | AS | CNS | |
| Austenitic stainless steel | |||||||||
| 1 | 12Cr17Mn6Ni5N | SUS201 | 201 | S20100 | STS201 | 1.4372 | 10Cr17Mn6Ni4N20 | 201-2 | 201 |
| 2 | 12Cr18Mn9Ni5N | SUS202 | 202 | S20200 | STS202 | 1.4373 | - | - | 202 |
| 3 | 12Cr17Ni7 | SUS301 | 301 | S20200 | STS301 | 1.4319 | 10Cr17Ni7 | 301 | 301 |
| 4 | 06Cr19Ni10 | SUS304 | 304 | S30400 | STS304 | 1.4301 | 07Cr18Ni9 | 304 | 304 |
| 5 | 022Cr19Ni10 | SUS304L | 304L | S30403 | STS304L | 1.4306 | 02Cr18Ni11 | 304L | 304L |
| 6 | 06Cr19Ni10N | SUS304N1 | 304N | S30451 | STS304N1 | 1.4315 | - | 304N1 | 304N1 |
| 7 | 06Cr19Ni9NbN | SUS304N2 | XM21 | S30452 | STS304N2 | - | - | 304N2 | 304N2 |
| 8 | 022Cr19Ni10N | SUS304LN | 304LN | S30453 | STS304LN | - | - | 304LN | 304LN |
| 9 | 10Cr18Ni12 | SUS305 | 305 | S30500 | STS305 | 1.4303 | - | 305 | 305 |
| 10 | 06Cr23Ni13 | SUS309S | 309S | S30908 | STS309S | 1.4833 | - | 309S | 309S |
| 11 | 06Cr25Ni20 | SUS310S | 310S | S31008 | STS310S | 1.4845 | - | 310S | 310S |
| 12 | 06Cr17Ni12Mo2 | SUS316 | 316 | S31600 | STS316 | 1.4401 | 04Cr17Ni12Mo2 | 316 | 316 |
| 13 | 06Cr17Ni12Mo2Ti | SUS316Ti | 316Ti | S31635 | - | 1.4571 | 04Cr17Ni12MoTi20 | 316Ti | 316Ti |
| 14 | 022Cr17Ni12Mo2 | SUS316L | 316L | S31603 | STS316L | 1.4404 | ~02Cr17Ni12Mo2 | 316L | 316L |
| 15 | 06Cr17Ni12Mo2N | SUS316N | 316N | S31651 | STS316N | - | - | 316N | 316N |
| 16 | 022Cr17Ni13Mo2N | SUS316LN | 316LN | S31653 | STS316LN | 1.4429 | - | 316LN | 316LN |
| 17 | 06Cr18Ni12Mo2Cu2 | SUS316J1 | - | - | STS316J1 | - | - | 316J1 | 316J1 |
| 18 | 022Cr18Ni14Mo2Cu2 | SUS316J1L | - | - | STS316J1L | - | - | - | 316J1L |
| 19 | 06Cr19Ni13Mo3 | SUS317 | 317 | S31700 | STS317 | - | - | 317 | 317 |
| 20 | 022Cr19Ni13Mo3 | SUS317L | 317L | S31703 | STS317L | 1.4438 | - | 317L | 317L |
| 21 | 06Cr18Ni11Ti S | SUS321 | 321 | S32100 | STS321 | 1.4541 | 04Cr18Ni10Ti20 | 321 | 321 |
| 22 | 06Cr18Ni11Nb | SUS347 | 347 | S34700 | STS347 | 1.4550 | 04Cr18Ni10Nb40 | 347 | 347 |
| Duplex stainless steel | |||||||||
| 1 | - | SUS329J1 | 329 | S32900 | STS329J1 | 1.4477 | - | 329J1 | - |
| 2 | 022Cr23Ni5Mo3N | - | S32205 | F60 | - | 1.4462 | - | 2205 | 2205 |
| 3 | 022Cr25Ni7Mo4N | - | S32750 | F53 | - | 1.4410 | - | 2507 | 2507 |
| Ferritic stainless steel | |||||||||
| 1 | 06Crl3Al | SUS405 | 405 | S40500 | STS405 | 1.4002 | 04Cr13 | 405 | 405 |
| 2 | 022Cr11Ti | SUH409 | 409 | S40900 | STS409 | 1.4512 | - | 409L | 409L |
| 3 | 022Cr12 | SUS410L | - | - | STS410L | - | - | 410L | 410L |
| 4 | 10Cr17 | SUS430 | 430 | S43000 | STS430 | 1.4016 | 05Cr17 | 430 | 430 |
| 5 | 10Cr17Mo | SUS434 | 434 | S43400 | STS434 | 1.4113 | - | 434 | 434 |
| 6 | 022Cr18NbTi | - | - | S43940 | - | 1.4509 | - | 439 | 439 |
| 7 | 019Cr19Mo2NbTi | SUS444 | 444 | S44400 | STS444 | 1.4521 | - | 444 | 444 |
| Martensitic stainless steel | |||||||||
| 1 | 12Cr12 | SUS403 | 403 | S40300 | STS403 | - | - | 403 | 403 |
| 2 | 12Cr13 | SUS410 | 410 | S41000 | STS410 | 1.4006 | 12Cr13 | 410 | 410 |
| 3 | 20Cr13 | SUS420J1 | 410 | S42000 | STS420J1 | 1.4021 | 20Cr13 | 420 | 420J1 |
| 4 | 30Cr13 | SUS420J2 | - | - | STS420J2 | 1.4028 | 30 Cr13 | 420J2 | 420J2 |
| 5 | 68Cr17 | SUS440A | 440A | S44002 | STS440A | - | - | 440A | 440A |
Product Features & Advantages
- Manufactured to ASTM, AISI, JIS, GB, DIN , EN, etc. with strict dimensional tolerance and surface quality
- Reliable Stainless Steel Pipe solution for construction, machinery and industrial projects
- Custom processing available: cutting, bending, decoiling, slitting and surface polishing
- Mill Test Certificate (MTC) and full inspection provided
Applications & Industries
Scope of Application
Common applications for stainless steel pipes include food processing, Textile operations, Breweries, Water treatment plants, Oil and gas processing, Fertilizers and pesticides, Chemical applications, Construction, Pharmaceuticals, Auto parts, etc.
Customer Reviews & Mill Quality Audits
Overall Satisfaction from Global EPC & Steel Buyers
EN 10204 3.1 Chemical & Tensile Verification Passed
SGS, BV & Cotecna Third-Party Audits Supported
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