As a precision steel tube specialist, our stainless seamless tubes ：grades 304, 304L, 316, 316L, 321, 1.4401, and others,feature cold-drawn precision and mirror-like surfaces via bright annealing. Delivery condition can be AP, BA, CFA, CFP and others. Tube after bright annealing with lower roughness Ra ≤0.4um. OD, ID can control minimum to +/-0.02mm.We can also supply EP tube with special request of inner surface.
With ultra-low roughness, tight size tolerance, and strong corrosion resistance, they’re ideal for high-demand industrial, hydraulic, and precision device applications requiring reliable, high-performance tubing.
Sophisticated bright annealing technology makes the tube good mechanical performance,the tube can be flared, flatten, bent freely.
| Hydraulic/Automobile Pipe: | Good roughness enable tube withstand high pressure and good mechanical performance guarantee tube bent, flared, end process and others freely, |
| Laboratory gas: | Puretube BA+ with special drawing procses to reach Ra ≤0.375 regular sizes like 6.35*1, 9.35*1, 12.7*1.24, 25.4*1.65 etc |
| Food/Beverage: | High precision with lower tolerance, good mechanical performance |
| pharmaceutical: | ID roughness Ra ≤0.6, OD tolerance≤±0.05mm, WT ≤±5% , sizes like 6*1, 8*1, 10*1 and others |
| Semiconductor: | Ra ≤0.375 special cleanness for inner diameter |
| Other application: | Guage, chemical industry, heat exchanger, precision equipments and others |
| Stainless Steel Tube Standard Reference | ||||||
| Standard | EN | GB/T | JIS | ASTM | BS | DIN |
| 10216-5 | 2270-80 | G3448 | A269 | 3605 | 17456 | |
| 14975-2002 | G3447 | A312 | 17458 | |||
| 14976-2002 | G3446 | A213 | 2462 | |||
| 13296-91 | G3459 | A270 | ||||
| G3463 | A789 | |||||
| A790 | ||||||
| A268 | ||||||
| Steel Grade | 1.4301 | 0Cr18Ni9 | SUS304 | 304 | 304S31, | X5CrNi18-10 |
| X5CrNi18-10 | ||||||
| 1.4307 | 00Cr19Ni10 | SUS304L | 304L | 304S11, | X2CrNi19-11 | |
| X2CrNi19-11 | ||||||
| 1.4401 | 0Cr17Ni12Mo2 | SUS316 | 316 | 316S31, | X5CrNiMo 17-12-2 | |
| X5CrNiMo 17-12-2 | ||||||
| 1.4404 | 00Cr17Ni14Mo2 | SUS316L | 316L | 316S13, | X2CrNiMo 18-4-3 | |
| X2CrNiMo 18-4-3 | ||||||
| 1.4571 | 0Cr18Ni12Mo2Ti | SUS316Ti | 316Ti | 320S31, | X6CrNiMoTi 17-12-2 | |
| X6CrNiMoTi 17-12-2 | ||||||
| 1.4541 | 0Cr18Ni10Ti | SUS321 | 321 | - | X6CrNiTi 18-10 | |
| 1.4011 | 1Cr13 | SUS410 | 410 | 410S21 | X10Cr13 | |
| Chemical Composition: | |||||||||
| Steel Grade | C | Si | Mn | P | S | Cr | Ni | Mo | Ti |
| 304 | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 18.0-20.0 | 8.0-11.0 | - | - |
| 304L | ≤0.03 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 18.0-20.0 | 8.0-12.0 | - | - |
| 316 | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 | - |
| 316L | ≤0.03 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 16.0-18.0 | 10.0-15.0 | 2.0-3.0 | - |
| 316Ti | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.035 | ≤0.030 | 16.0-19.0 | 10.0-14.0 | 1.80-2.50 | 0.20-0.70 |
| 321 | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 17.0-19.0 | 9.0-12.0 | - | 0.50-0.70 |
| 410 | ≤0.15 | ≤1.00 | ≤1.00 | ≤0.035 | ≤0.030 | 11.50-14.50 | - | - | - |
| Chemical Composition: | |||||||||
| Steel Grade | C | Si | Mn | P | S | Cr | Ni | Mo | Ti |
| 1.4301 | ≤0.07 | ≤1.00 | ≤2.00 | ≤0.040 | ≤0.015 | 17.0-19.5 | 8.0-10.0 | - | - |
| 1.4307 | ≤0.03 | ≤1.00 | ≤2.00 | ≤0.040 | ≤0.015 | 17.5-19.5 | 8.0-10.5 | - | - |
| 1.4401 | ≤0.07 | ≤1.00 | ≤2.00 | ≤0.040 | ≤0.015 | 16.5-18.5 | 10.0-13.0 | 2.0-2.5 | - |
| 1.4404 | ≤0.03 | ≤1.00 | ≤2.00 | ≤0.040 | ≤0.015 | 16.5-18.5 | 10.0-13.0 | 2.0-2.5 | - |
| 1.4571 | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.040 | ≤0.015 | 16.5-18.5 | 10.5-13.5 | 2.0-2.5 | 5C-0.7 |
| Mechanical Composition: | |||
| Steel Grade | Ra0.2 | TS(Mpa) | EL(%) |
| 1.4301 | 195 | 500-700 | 40 |
| 1.4307 | 180 | 460-680 | 40 |
| 1.4401 | 205 | 510-710 | 40 |
| 1.4404 | 190 | 490-690 | 40 |
| 1.4571 | 210 | 500-730 | 35 |
| Parameter | Details / Specification |
| Standard Size Range | Outer Diameter (OD): 0.1 mm – 100 mm Wall Thickness (WT): 0.05 mm – 10 mm |
| Standard Tolerances | OD: +/- 0.05 mm ID: +/- 0.05 mm |
| Delivery Conditions | AP , BA , CFA , CFP |
| Key Technical Advantage | Sophisticated bright annealing technology ensures excellent mechanical performance. Tubes can be flared, flattened, and bent freely without cracking or weakening. |
| Customization Availability | Other Sizes, Materials, Grades, and Special Tolerances are available upon request. |
Zhangjiagang Chewit International Co.,Ltd is a professional supplier of precision steel tubes ,forging and aluminum products with decades experience.
+86 18962244644
SHUANGSHAN ROAD, JINGANG TOWN, ZHANGJIAGANG CITY, JIANGSU PROVINCE, CHINA
sale@chewit.cn
