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ASTM F138 UNS S31673 Stainless Steel for Surgical Implants
Suzhou XUNSHI New Material Co Ltd provides cost-effective Stainless Steel UNS S31673 for surgical implants for domestic and foreign customers, and the stainless steel UNS S31673 can be produced in accordance with the national standard 4234.1-2017,American standard ASTM F138 or ISO5832-1 and other relevant specifications.
316LVM(low carbo, vacuum melted), is an electro-slag remelted (ESR) or vacuum arc remelted (VAR), low carbon, high nickel and molybdenum version of 316 stainless, which is considered to be a reasonable choice for surgical implants.
The chemical requirements for surgical implant UNS S31673 stainless steel are documented in ASTM F 138 and ISO 5832-1 specifications. A similar analysis of stainless steel is also available as ASTM A276 commercial quality alloy with different composition limits and microstructure features when compared to implant quality.
Comparison Between Implant Quality and Commercial Quality Stainless Steel(wt%)
| Implant Quality | Commercial Quality | ||
| Element | ASTM F 138 | ISO 5832-1 | ASTM A 276 |
| C | 0.030 | 0.030 | 0.030 |
| Mn | 2.00 | 2.0 | 2.00 |
| P | 0.025 | 0.025 | 0.045 |
| S | 0.010 | 0.010 | 0.030 |
| Si | 0.75 | 1.0 | 1.00 |
| Cr | 17.00-19.00B | 17.0-19.0B | 16.00-18.00 |
| Ni | 13.00-15.00 | 13.0-15.0 | 10.00-14.00 |
| Mo | 2.25-3.00B | 2.25-3.5B | 2.00-3.00 |
| N | 0.10 | 0.10 | 0.10 |
| Cu | 0.50 | 0.50 | — |
| Fe | Balance | Balance | (Balance) |
Tensile Properties of Implant Quality ASTM F 138 Bar and Wire and ISO 5832-1 Bar
| Diameter or Thickness | Ultimate Tensile Strength | Minimum 0.2% Yield Strength | Minimum Elongation in 4D or 4WA | ||
| Standard | Condition | (mm) | (MPa) | (MPa) | (%) |
| ASTM F 138 | Annealed | ≥ 1.60 | min 490 | 190 | 40 |
| ISO 5832-1 | Annealed | All | 490– 690 | 190 | 40 |
| ASTM F 138 | Cold Worked | 1.60– 38.1 | min 860 | 690 | 12 |
| ISO 5832-1 | Cold Worked | ≤ 22 | 860–1100 | 690 | 12 |
| ASTM F 138 | Extra Hard | 1.60– 6.35 | min 1350 | — | — |
| ISO 5832-1 | Extra Hard | ≤ 8 | min 1400 | — | — |
Applications of UNS S31673
Characteristics of UNS S31673
Forms available at XUNSHI
About XUNSHI
Suzhou Xunshi New Material Co. Ltd- referred as XUNSHI hereafter, is a professional manufacturer of high-performance alloy products. XUNSHI is engaged in supplying high quality and cost-effective Superalloy, Anti-Corrosion Alloy, Precision Alloy, Special Stainless Steel and Magnetostrictive Material to customers worldwide.
Why XUNSHI
· Highly experienced in alloy industry
· Top experts of industry in China
· Advanced technology and process from top famous institutes in China
· Advanced devices through whole production and inspection process
· Strict quality control system
· Company motto: best service, most value
· Smart sales policy
Service Items of XUNSHI
· Non-standard product research and pre-production
· Fabrication of products
· Cutting, splitting for sheets and plates in stock
· Heat treatment (Solution treatment, aging harden treatment, anneal, spring temper, quench etc.)
· Surface finish (peeling, gridding, polishing)
· Logistics service
· Customized packing service (also for exporting)
· Import and export (XUNSHI is certificated)
· Document translation
· Hard-to-find material sourcing
Customers of XUNSHI
Customers of XUNSHI are all over China (Taiwan and Hong Kong included). And we are exporting to USA, Canada, Italy, UK, Poland, Greece, Russia, Turkey, Iran, Israel, South Africa, South Korea, North Korea, India, Argentina, and Brazil and so on. Customers from 30+ countries trust us.
Where is XUNSHI
A- XUNSHI is in Huaqiao, Kunshan, 215332 China, which is very closed to Shanghai.
B- Xunshi is around 80KM from Shanghai Pudong International Airport (PVG).
C- 20KM from Shanghai Hongqiao Airport
D- 20KM from Shanghai Hongqiao Railway Station
E- You can contact XUNSHI sales for a pickup service.