Bolaibao (Suzhou) Metal Products Co., Ltd. is the professional manufacturer of 400 series stainless steel seamless pipes and Tubes. Stainles steel 400 series pipes are of high hardness and strength compared with 300 series.This Feature determines the 400 series pipe need special technology in the production.Usually the production period of 400 seroes pipe need 30-35 days.
Standard: AISI, ASTM, DIN, EN, GB and JIS ASTM A268
Materials:
400series:
409,409L,410 420,420J1,420J2,...
430,431,444,446,440A,440B,440C...
Production process: cold drawing and precision rolling
Outer diameter: 6 to 720mm, 1/8 to 36 inches
Wall Thickness: 0.89 to 60mm
Length: 1~14 meters or customized
| Type | Grade | Grade | Chemical Component % |
| C | Cr | Ni | Mn | P | S | Mo | Si | Cu | N | Other |
| 409 | 3cr12 | ≤0.08 | 10.50-11.75 | ≤0.5 | ≤1.00 | ≤0.045 | ≤0.030 | - | ≤1.00 | - | - | Ti(6C-0.75%) |
| 409L | 3cr12 | ≤0.03 | 10.50-11.75 | ≤0.5 | ≤1.00 | ≤0.045 | ≤0.030 | - | ≤1.00 | - | - | Ti(6C-0.75%) |
| 410L | 00Cr12 | ≤0.030 | 11.00-13.00 | 3) | ≤1.00 | ≤0.035 | ≤0.030 | - | ≤1.00 | - | - | - |
| 430 | 1Cr17 | ≤0.12 | 16.00-18.00 | 3) | ≤1.25 | ≤0.035 | ≤0.030 | - | ≤0.75 | - | - | - |
| 430F | Y1Cr17 | ≤0.12 | 16.00-18.00 | 3) | ≤1.00 | ≤0.035 | ≥0.15 | 1) | ≤1.00 | - | - | - |
| 434 | 1Cr17Mo | ≤0.12 | 16.00-18.00 | 3) | ≤1.00 | ≤0.035 | ≤0.030 | 0.75-1.25 | ≤1.00 | - | - | - |
| 447J1 | 00Cr30Mo2 | ≤0.010 | 28.50-32.00 | - | ≤0.40 | ≤0.035 | ≤0.030 | 1.50-2.50 | ≤0.40 | - | ≤0.015 | - |
| XM27 | 00Cr27Mo | ≤0.010 | 25.00-27.50 | - | ≤0.40 | ≤0.035 | ≤0.030 | 0.75-1.50 | ≤0.40 | - | ≤0.015 | - |
| Martensite stainless steel | 403 | 1Cr12 | ≤0.15 | 11.50-13.00 | 3) | ≤1.00 | ≤0.035 | ≤0.030 | - | ≤0.50 | - | - | - |
| 410 | 1Cr13 | ≤0.15 | 11.50-13.50 | 3) | ≤1.00 | ≤0.035 | ≤0.030 | - | ≤1.00 | - | - | - |
| 405 | 0Cr13 | ≤0.08 | 11.50-13.50 | 3) | ≤1.00 | ≤0.035 | ≤0.030 | - | ≤1.00 | - | - | - |
| 416 | Y1Cr13 | ≤0.15 | 12.00-14.00 | 3) | ≤1.25 | ≤0.035 | ≥0.15 | 1) | ≤1.00 | - | - | - |
| 410J1 | 1Cr13Mo | ≤0.08-0.18 | 11.50-14.00 | 3) | ≤1.00 | ≤0.035 | ≤0.030 | 0.30-0.60 | ≤0.60 | - | - | - |
| 420J1 | 2Cr13 | 0.16-0.25 | 12.00-14.00 | 3) | ≤1.00 | ≤0.035 | ≤0.030 | - | ≤1.00 | - | - | - |
| 420J2 | 3Cr13 | 0.26-0.35 | 12.00-14.00 | 3) | ≤1.00 | ≤0.035 | ≤0.030 | - | ≤1.00 | - | - | - |
| 420F | Y3Cr13 | 0.26-0.40 | 12.00-14.00 | 3) | ≤1.25 | ≤0.035 | ≥0.15 | 1) | ≤1.00 | - | - | - |
| 3Cr13Mo | 0.28-0.35 | 12.00-14.00 | 3) | ≤1.00 | ≤0.035 | ≤0.030 | 0.50-1.00 | ≤0.80 | - | - | - |
| 4Cr13 | 0.36-0.45 | 12.00-14.00 | 3) | ≤0.80 | ≤0.035 | ≤0.030 | - | ≤0.60 | - | - | - |
| 431 | 1Cr17Ni2 | 0.11-0.17 | 16.00-18.00 | 1.50-2.50 | ≤0.80 | ≤0.035 | ≤0.030 | - | ≤0.80 | - | - | - |
| 440A | 7Cr17 | 0.60-0.75 | 16.00-18.00 | 3) | ≤1.00 | ≤0.035 | ≤0.030 | 4) | ≤1.00 | - | - | - |
| 440B | 8Cr17 | 0.75-0.95 | 16.00-18.00 | 3) | ≤1.00 | ≤0.035 | ≤0.030 | 4) | ≤1.00 | - | - | - |
| 9Cr18 | 0.90-1.00 | 17.00-19.00 | 3) | ≤0.80 | ≤0.035 | ≤0.030 | 4) | ≤0.80 | - | - | - |
| 440C | 11Cr17 | 0.95-1.20 | 16.00-18.00 | 3) | ≤1.00 | ≤0.035 | ≤0.030 | 4) | ≤1.00 | - | - | - |
| 440F | Y11Cr17 | 0.95-1.20 | 16.00-18.00 | 3) | ≤1.25 | ≤0.035 | ≥0.15 | 4) | ≤1.00 | - | - | - |
| 9Cr18Mo | 0.95-1.10 | 16.00-18.00 | 3) | ≤0.80 | ≤0.035 | ≤0.030 | 0.40-0.70 | ≤0.80 | - | - | - |
| 9Cr18MoV | 0.85-0.95 | 17.00-19.00 | 3) | ≤0.80 | ≤0.035 | ≤0.030 | 1.00-1.30 | ≤0.80 | - | - | V0.07-0.12
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What Makes Us Unique?
1. We have professional production line.
2. We have professional certification and test report.
3. We have large amount of stock.
