316LVM不锈钢管 是一种由真空重熔钢生产的高纯度钼合金奥氏体不锈钢管材料。它一般与 美国S31673 并被广泛考虑用于需要受控化学、结构均匀性、高表面质量、耐腐蚀性和可靠机械性能的应用。
与传统 316L 不锈钢不同，316LVM 的生产更加注重材料清洁度和冶金一致性。具有代表性的医用级 316LVM 规范将该合金描述为真空重熔的钼合金奥氏体不锈钢，具有高强度、疲劳强度、微观清洁度、结构均匀性和高质量的表面光洁度。 引用转686245view0
由于这些特性，316LVM 不锈钢管特别适合精密行业，包括医疗器械、手术部件、仪器仪表和其他要求苛刻的工程应用。
316LVM是什么意思？
其指定可以理解如下：
316 – 铬镍钼奥氏体不锈钢系列。
L – 表示低碳含量。
虚拟机 – 通常指用于提高材料清洁度和一致性的真空熔化或真空重熔加工。
低碳含量有助于降低热处理和焊接过程中碳化铬沉淀的风险，而钼有助于抵抗局部腐蚀。
真空重熔工艺是标准商用 316L 和 316LVM 之间最重要的区别之一。其目的是提供更清洁、更均匀的材料结构，当管道用于精密或关键部件时，这一点尤其重要。
316LVM不锈钢化学成分
316LVM 基于铬镍钼合金系统。应始终根据指定的材料标准和采购文件确认确切的成分要求。
代表性标称 316LVM 医疗级成分如下所示。 引用转686245view0
| 元素 | 代表性内容 |
|---|---|
| 碳（C） | ≤0.025% |
| 硅（SI） | 0.6% |
| 锰（MN） | 1.7% |
| 磷（P） | ≤0.025% |
| 硫 | ≤0.003% |
| 铬（CR） | 17.5% |
| 镍（NI） | 14% |
| 钼（MO） | 2.8% |
| 铜（CU） | ≤0.10% |
| 氮 (N) | ≤0.10% |
这些值应被视为具有代表性的参考值，而不是通用的采购规格。最终要求取决于适用的 ASTM、ISO、客户和产品规格。
316LVM不锈钢管的主要性能
1. 物料洁净度高
选择 316LVM 而不是传统 316L 的主要原因之一是其冶金洁净度高。
真空重熔材料旨在最大限度地减少不需要的夹杂物并提高整个材料的一致性。这一特性对于可能进行大量冷加工、成型、机加工或精密精加工的小直径管材和部件尤其重要。
高微清洁度被认为是 316LVM 的特征之一。 引用转686245view0转686245view3
2、耐腐蚀性能好
铬镍钼成分可抵抗多种腐蚀环境。钼对于提高对局部腐蚀（例如点蚀和缝隙腐蚀）的抵抗力特别重要。
Medical-grade 316LVM is reported to provide good resistance to general, intergranular, pitting, and crevice corrosion in physiological environments. citeturn686245view0
However, corrosion performance always depends on factors such as:
Chloride concentration
Temperature
Surface condition
Fabrication process
Cleaning and passivation
Exposure time
Applied stress
Therefore, material suitability should be evaluated according to the actual operating environment.
3. High Strength
316LVM tubing can be supplied in different metallurgical conditions, including annealed and cold-worked conditions.
Cold working can significantly increase tensile and yield strength, allowing manufacturers to produce thin-wall components while maintaining demanding mechanical performance.
316LVM 管材的代表性技术数据表明，机械性能根据管材尺寸以及材料是否经过退火或冷加工而有很大差异。 引用转686245view0
4、良好的疲劳性能
对于承受重复循环载荷的部件来说，抗疲劳性非常重要。
受控化学、高微观清洁度、均匀结构和合适的机械加工相结合，使得 316LVM 对于循环机械载荷是重要设计考虑因素的组件具有吸引力。
5. 优异的表面光洁度潜力
精密管材通常需要高度控制的内表面和外表面。
316LVM can be manufactured with bright, polished, or specially finished surfaces depending on the application. For medical and precision-engineering applications, surface roughness and cleanliness may be specified together with dimensional tolerances.
A high-quality 316LVM tube surface can help support subsequent processes such as:
Precision machining
Electropolishing
钝化
Forming
Laser processing
打扫
Component assembly
316LVM Stainless Steel Tube Standards
Material standards are especially important when purchasing 316LVM tubing.
美国S31673
The recognized UNS designation associated with implant-grade 316LVM stainless steel is:
美国S31673
ISO documentation identifies the wrought stainless steel covered by ISO 5832-1 as corresponding to UNS S31673 under ASTM F138 and ASTM F139. citeturn968761view0
ASTM F138
ASTM F138 涵盖 UNS S31673 下用于外科植入应用的锻造 18Cr-14Ni-2.5Mo 不锈钢棒材和线材。
在讨论与 316LVM 相关的基材化学和冶金要求时，经常会引用它。 引用转775284搜索0
ASTM F2257
对于小直径管材， ASTM F2257 是特别相关的。
ASTM F2257 涵盖用于制造外科植入物的锻造无缝或焊接拉制 18Cr-14Ni-2.5Mo 不锈钢小直径管。 ASTM 规范涵盖化学、尺寸和机械性能等要求。 引用转686245view1
Under ASTM F2257, the material is required to conform to applicable requirements of ASTM F138 for seamless material or ASTM F139 for welded-and-drawn material. citeturn686245view1
ISO 5832-1
ISO 5832-1:2024 specifies characteristics and associated test methods for wrought stainless steel intended for the manufacture of surgical implants.
The 2024 edition identifies the alloy as corresponding to 美国S31673 in ASTM F138 and ASTM F139. citeturn968761view0
For international procurement, buyers should specify the exact standard and edition required rather than simply requesting “316LVM.”
316LVM vs. 316L Stainless Steel Tube
Although the two materials are closely related, 316LVM 不锈钢管和传统 316L 不锈钢管不应自动被视为可互换。
| 特征 | 316L不锈钢管 | 316LVM不锈钢管 |
| 不锈钢家族 | 奥氏体 | 奥氏体 |
| 碳含量 | 低的 | 低的 |
| 钼合金 | 是的 | 是的 |
| 真空重熔 | 未必 | 特色功能 |
| 物料洁净度 | 标准商业控制 | 更高的清洁度重点 |
| 结构同质性 | 好的 | 控制更严格 |
| 精准医疗应用 | 取决于应用 | 常用的选择 |
| 典型的 UNS 名称 | S31603 | S31673 |
| 相关种植体标准 | 通常不简单地指定为商用 316L | ASTM F138/F2257 和 ISO 5832-1 可能适用 |
这种区别对于医疗设备、植入物和精密工程采购尤为重要。
有买家要求 UNS S31673 管材 should not substitute ordinary UNS S31603 tubing unless the design authority and applicable specification explicitly permit it.
Manufacturing of 316LVM Stainless Steel Tube
Depending on dimensional and application requirements, 316LVM tubing may be manufactured through processes such as:
Seamless Tube Production
Seamless tubing eliminates a longitudinal weld seam and can be processed through multiple cold-drawing and heat-treatment stages to achieve controlled dimensions and mechanical properties.
For critical small-diameter tubing, seamless production may be selected where uniform structure and dimensional precision are required.
Welded and Drawn Tubing
316LVM can also be manufactured through welding followed by drawing operations.
拉拔工艺减小了尺寸，提高了尺寸精度，并且可以改变管材的机械性能和表面特性。
ASTM F2257 特别解决了这两个问题 无缝的 和 焊接拉拔 用于制造外科植入物的小直径管。 引用转686245view1
冷拔
冷拔经常用于生产：
更小的外径
薄壁厚度
严格的尺寸公差
提高表面质量
增加机械强度
根据最终规格，可以使用多次拉拔和退火操作。
热处理
退火用于恢复冷变形后的延展性、控制显微组织并获得所需的力学性能。
或者，当需要更高强度时，某些管材可以在冷加工条件下提供。
Typical Applications of 316LVM Stainless Steel Tube
Medical Devices
316LVM is strongly associated with medical and surgical-device manufacturing because of its controlled composition, high material cleanliness, mechanical performance, and surface quality.
316LVM materials are used in orthopedic, cardiovascular and surgical applications, while the precise suitability of any specific tube must be evaluated against the applicable device design and regulatory requirements. citeturn686245view0turn686245view3
Orthopedic Components
Potential applications include components associated with:
Trauma fixation systems
Orthopedic fixation devices
Bone screws and related components
Spinal systems
Surgical fixation assemblies
Cardiovascular Components
Precision stainless steel tubing may also be considered for cardiovascular-device components where small dimensions, surface finish and mechanical consistency are important.
Surgical Instruments
316LVM can be considered for precision components used in surgical instruments and related tools.
Precision Engineering
Outside direct implant applications, the combination of cleanliness, corrosion resistance, surface quality and mechanical consistency may make 316LVM useful in other high-specification applications where ordinary commercial stainless steel does not provide the required level of material control.
Important Specifications When Purchasing 316LVM Stainless Steel Tube
When requesting a quotation, buyers should provide more than just the material grade.
A professional purchasing specification should include:
Material Grade:
316LVM / UNS S31673
Applicable Standard:
ASTM F2257, ASTM F138-related requirements, ISO 5832-1, or another applicable customer specification
Manufacturing Method:
Seamless or welded and drawn
Outside Diameter:
Specified in millimeters or inches
Wall Thickness:
Required nominal wall thickness and tolerance
长度：
Straight length or other specified form
Condition:
Annealed, cold worked, or other required condition
表面光洁度：
Bright annealed, polished, mechanically polished, or other specified finish
Surface Roughness:
Ra requirement where applicable
Dimensional Tolerances:
OD, ID, wall thickness, straightness and length tolerances
机械性能：
Required tensile strength, yield strength and elongation
文档：
Material certificates, chemical analysis, mechanical test data, inspection reports and other documents required by the purchase specification
Clearly defining these parameters can reduce procurement risk and help ensure that the delivered tubing matches the intended manufacturing process.
How to Choose a 316LVM Stainless Steel Tube Supplier
For international buyers, selecting a supplier should involve more than comparing price.
Material Traceability
The supplier should be able to provide clear identification of the material grade, heat or batch information, and applicable material documentation when required.
Dimensional Control
Small-diameter and thin-wall tubing can require extremely precise dimensional control. Buyers should specify acceptable tolerances before production.
表面质量
For precision applications, scratches, pits, contamination, and uncontrolled surface roughness may affect downstream manufacturing.
Surface requirements should therefore be included directly in the purchase specification.
Testing Requirements
Depending on the application, buyers may request:
Chemical composition testing
Tensile testing
尺寸检验
Surface roughness inspection
Non-destructive testing
Metallurgical examination
Material certification
Standard Compliance
The required ASTM, ISO, customer, or regulatory specification should always be identified on the purchase order.
For medical-device applications in particular, specifying only “316LVM” is not sufficient to establish that a finished product is suitable for a particular medical use. Material, manufacturing process, testing, device design and regulatory requirements must all be considered.
结论
316LVM不锈钢管 is a high-purity, vacuum-remelted austenitic stainless steel tubing material designed for applications requiring excellent material cleanliness, structural consistency, corrosion resistance, mechanical performance and high-quality surface finish.
Its association with 美国S31673, together with standards such as ASTM F2257, ASTM F138 and ISO 5832-1, makes it particularly important for precision medical and engineering applications. citeturn686245view1turn968761view0
When purchasing 316LVM tubing, buyers should clearly specify the required standard, dimensions, manufacturing method, mechanical condition, surface finish, tolerances, testing and documentation requirements.
For international sourcing inquiries or to discuss your required stainless steel tube specifications, contact 广发钢铁。
广发钢铁
电子邮件： [email protected]
WhatsApp： +86 191 3816 4778
分享这篇文章
完成下一个项目！
China Steel Supplier & Manufacturer
最大的金属制造业
Gengfei Steel是位于中国的专业“钢供应商”，我们提供不锈钢，碳钢，铝和其他金属材料的供应服务。
作为一家行业领先的公司，我们致力于为客户提供一流客户服务和支持的最高质量原材料。我们的广泛供应包括各种不锈钢板，管，金属丝和碳钢板，管，吧台等。我们经验丰富的专业人员团队可以帮助您选择最适合您项目需求的材料，并确保按时交付订单。我们的客户范围从小型企业到大型制造商，无论您的需求规模如何，我们都可以提供专业服务和支持。