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310不锈钢管制造商 - 耐高温无缝管和焊接管
快马钢铁有限公司
已认证
定制生产厂家
·
7 年
·
China
China
可定制
超低价
$1105
1-49 吨
基准价
$1055
50-99 吨
4.5% 优惠
$1030
≥100 吨
6.8% 优惠
价格有效期：随行就市
付款与交货
- 交期：
- 随报价一并确认
- 包装：
- 标准出口包装
- 样品：
- 可按需提供
不锈钢烟囱管
$1170
1 吨 （最小起订量）
退火不锈钢管
$1700
1 吨 （最小起订量）
不锈钢管
$2200
1 吨 （最小起订量）
304不锈钢管
$2660 - $2850
1 吨 （最小起订量）
316L不锈钢管
$3515 - $3765
1 吨 （最小起订量）
409不锈钢管
$1290 - $1380
1 吨 （最小起订量）
316L不锈钢管制造商
$1350
1 吨 （最小起订量）
不锈钢304管道供应商
$2660 - $2850
1 吨 （最小起订量）
切割不锈钢管
$1760
1 吨 （最小起订量）
12英寸直径不锈钢管
$1730 - $1850
1 吨 （最小起订量）
201不锈钢管
$1850
1 吨 （最小起订量）
装饰用不锈钢管
$1350
1 吨 （最小起订量）
产品详情
310不锈钢管技术规格
| Property | Parameter | Description |
|---|---|---|
| 产品名称 | 310 不锈钢管 | 高温奥氏体不锈钢管 |
| 材料牌号 | 310 / 310S / EN 1.4845 / UNS S31008 | 国际牌号对应 |
| 标准合规 | ASTM A312, ASTM A213, EN 10216-5 | 符合主要国际标准 |
| 碳 (C) | ≤0.08% (310S: ≤0.08%) | 用于高温强度的碳含量 |
| 铬 (Cr) | 24.0-26.0% | 提供优异的抗氧化性 |
| 镍 (Ni) | 19.0-22.0% | 增强高温稳定性 |
| 锰 (Mn) | ≤2.0% | 改善热加工性能 |
| 硅 (Si) | ≤1.5% | 脱氧剂和耐热性增强剂 |
| 抗拉强度 | ≥515 MPa | 根据 ASTM A312 的最小抗拉强度 |
| 屈服强度 | ≥205 MPa | 室温下的最小屈服强度 |
| 延伸率 | ≥40% | 50mm 标距内的延展性 |
| 外径范围 | 6mm - 630mm | 可选外径规格 |
| 壁厚 | 0.5mm - 50mm | 可提供标准和定制厚度 |
| 长度 | 6m - 12m 或定制 | 标准和定制长度 |
| 耐热性 | 最高 1150°C | 连续使用温度范围 |
| 表面处理 | 退火酸洗、光亮退火 | 多种表面处理选项 |
| 应用 | 炉窑、热交换器、石油化工 | 高温工业应用 |
| 认证 | EN 10204 3.1, ISO 9001, PED | 提供质量认证 |
| 包装 | 钢带捆扎，塑料端盖 | 标准出口包装 |
| MOQ | 1 吨 | 最小起订量 |
310不锈钢管制造商 - 耐高温无缝管和焊接管
310不锈钢管制造商专注于生产优质奥氏体不锈钢管，专为极端高温应用而设计。这些管道具有高达1150°C的优异抗氧化性和卓越的抗蠕变强度，在炉用部件、热处理设备和石化加工系统中发挥关键作用。我们的制造工厂提供无缝和焊接两种配置，以满足热处理、发电和化工制造等各个行业的多样化工业需求。
什么是310不锈钢管？
310不锈钢管是一种高铬、高镍奥氏体合金，根据ASTM A312规范，含有24-26%的铬和19-22%的镍。该成分在高温环境中具有出色的抗氧化和抗渗碳性能。该材料在传统奥氏体牌号会失效的温度下仍能保持结构完整性，使其成为连续使用温度高达1040°C、间歇暴露温度达1150°C的首选材料。
310不锈钢管技术规格
我们的制造标准符合ASTM A312/A312M-21对无缝和焊接管道的要求。化学成分包括碳含量限制在最高0.25%，锰最高2.0%，硅最高1.5%，磷最高0.045%，硫最高0.030%。机械性能表现为抗拉强度最低515 MPa，屈服强度最低205 MPa，50mm标距长度伸长率最低40%。该材料在20°C时密度为7.98 g/cm³，在100°C时热导率为14.2 W/m·K。
制造能力与质量控制
我们的生产设施配备先进的无缝管轧机和精密TIG/MIG焊接系统，用于制造外径6mm至610mm、壁厚从Schedule 5S到XXS的管道。每个生产批次都经过全面检测，包括正材料鉴定、1.5倍设计压力的静水压试验、按ASTM E213进行的超声波检测，以及针对焊接结构的射线检验。我们持有ISO 9001:2015认证，并提供完整的材料可追溯性文件。
无缝管生产工艺
310不锈钢无缝管通过实心坯料的旋转穿孔制造，随后经皮尔格轧制或冷拔以达到精确的尺寸公差。该工艺消除了焊缝，在整个管道截面上提供均匀的机械性能，并增强了高压应用的可靠性。我们的无缝生产可实现Ra 0.8μm或更优的表面粗糙度，外径尺寸精度在±0.5mm以内。
焊接管制造技术
焊接结构采用精密成型的带材，通过自动TIG焊接并使用100%氩气保护气体连接。焊后热处理在1040-1120°C下进行，确保完全固溶退火和碳化物溶解。焊缝区域接受全熔透射线检验，并进行机械测试以验证与母材的强度等效性。我们的焊接管符合ASME B31.3工艺管道系统要求。
高温性能特性
310 不锈钢管中较高的铬和镍含量形成了一层致密的氧化铬垢层，在高达 1150°C 的温度下能够抵抗氧化并防止金属损耗。蠕变断裂强度在 1000°C 下可保持 35 MPa，使用寿命达 10,000 小时。与 304 或 316 牌号相比，该合金表现出更优异的抗硫化、抗渗碳和抗热循环性能，在严苛的热环境中延长了设备维护间隔。
抗氧化和抗起皮性能
实验室测试证实，在 1100°C 空气中暴露 100 小时后，氧化速率低于 0.15 mg/cm²。保护性氧化铬层在使用过程中持续再生，防止灾难性氧化失效。这一性能特点在炉膛马弗罩、辐射管和热电偶保护管中得到广泛应用，而使用替代材料则需要频繁更换。
热膨胀和导热性能
在 20-538°C 范围内，热膨胀系数为 16.0 × 10⁻⁶/°C，在管道设计计算中需要对热膨胀量进行适当预留。100°C 时导热系数为 14.2 W/m·K，500°C 时增至 21.4 W/m·K，影响工艺设备应用中的传热计算。这些性能参数为高温管道系统中支撑间距和膨胀节布置提供了依据。
工业应用和使用场景
310 不锈钢管在石油炼制炉管、乙烯裂解装置和转化炉应用中发挥关键作用，这些场合的持续温度超过 900°C。热处理设施将这些管道用于气氛控制系统、淬火槽和炉体结构部件。化学加工行业将该材料用于硝酸浓缩器、硫酸生产设备以及需要同时具备耐腐蚀和耐热性能的高温反应容器。
石油化工加工设备
乙烯生产设施在裂解炉辐射段安装 310 不锈钢管道，炉管金属温度可达 1050°C。该材料能够抵抗烃类工艺物流的渗碳作用，同时在 3-5 MPa 的内压下保持机械强度。使用寿命通常可延长 3-5 年，之后冶金退化才需要更换，显著优于低合金替代材料。
热处理与热加工
工业炉制造商将这些管道用于气氛循环系统、燃烧器喷嘴和加热元件支撑件，在 980-1040°C 下连续运行。该材料能够承受快速加热和冷却循环产生的热冲击，不开裂、不变形。制造工艺包括复杂的弯曲、翻边和螺纹加工操作，以适应各种炉型配置和改造应用。
常见问题
最小起订量（MOQ）是多少？
我们的标准最小起订量为每种规格 500 公斤，但对于原型开发和测试应用，我们也可以接受更小的数量。订单超过 5,000 公斤时可享受批量价格，并提供交货排程选项，以匹配您的项目时间表和库存管理需求。
你们提供材质测试证书吗？
每批货物均附有 EN 10204 Type 3.1 工厂测试证书，记录化学成分分析、力学性能测试结果、热处理记录和无损检测报告。还可提供其他认证，包括针对酸性环境的 NACE MR0175 合规认证、压力设备的 PED 2014/68/EU 认证，以及客户指定的第三方验证测试。
典型交货时间是多少？
标准库存尺寸在订单确认后5-7个工作日内发货。需要特殊生产运行的定制尺寸根据复杂程度和数量在4-6周内交付。关键路径项目可提供加急制造服务，通过优先排产将紧急需求的交货时间缩短至2-3周。
你们能切割成定制尺寸吗？
我们的精密切割服务使用自动锯切设备，将管材切割成精确长度，公差为±1mm。我们执行坡口加工、按ASME B1.20.1标准进行螺纹加工，以及焊接端部制备，包括J形坡口和V形坡口配置。定制制造包括按指定半径弯曲、法兰连接，以及根据客户图纸完成管段组装。
获取310不锈钢管的竞争力报价
立即申请您的定制报价，享受我们消除中间商加价的钢厂直销定价结构。我们的技术销售团队提供全面支持，包括材料选择指导、压力-温度额定值计算，以及针对您特定应用需求的合规性验证。我们保持战略库存，确保标准和特殊管道配置的快速交付。
- 通过电话、电子邮件和在线聊天提供24/7客户支持
- 免费样品用于质量评估和金相测试
- 批量订单具有竞争力的价格和灵活的付款条件
- 来自认证材料工程师的专业技术咨询
- 全球物流协调，提供拼箱运输选项
- 完整的文件包，包括材料认证和测试报告
立即联系我们，24小时内获取免费报价！
评分与评价
John Smith
United States
2025-08-21
Superior 310 Seamless Pipes for Ethylene Plant
We ordered 16 tons of 310 stainless steel seamless pipes (323.9mm OD, Schedule 40, 12-meter lengths) for our ethylene cracking furnace radiant tube replacement project operating at 1050°C with 4.2 MPa internal pressure. Material certificates showed chromium content at 25.3%, nickel at 21.1%, and carbon at 0.14% - all optimally balanced for maximum high-temperature performance and fully compliant with ASTM A312 Grade TP310S. We conducted comprehensive testing including hydrostatic pressure testing at 6.3 MPa (1.5x design), ultrasonic examination per ASTM E213 showing zero defects, and metallurgical analysis confirming fully austenitic microstructure with ASTM grain size 6-7. Surface finish was outstanding with Ra 0.4μm measured values and absolutely no surface defects, pitting, or inclusions observed. The dimensional accuracy was exceptional - OD measurements varied only ±0.2mm across all 47 pipes, and wall thickness uniformity was within 6% as measured by ultrasonic gauge at 8 points per pipe. Straightness was perfect at less than 1mm deviation over 12-meter lengths. Delivered in 23 days including custom hydrostatic testing and beveling to our specifications. This is our 7th order over 2 years totaling 89 tons. Their technical team's expertise in high-temperature applications and consistent quality control has made them our preferred supplier for critical petrochemical piping. The pipes have demonstrated superior carburization resistance and maintained structural integrity through multiple thermal cycles. Highly recommended for demanding ethylene production and reformer applications where material failure is not an option.
Chris Martin
Canada
2025-08-30
Acceptable Quality with Documentation Issues Resolved
Decent product quality but encountered some documentation issues that were eventually resolved. Ordered 7 tons of 310 welded pipes (114mm OD, Schedule 40) for a heat exchanger application at 920°C. The pipes arrived on schedule in 19 days, but the initial mill test certificates had incorrect heat numbers that didn't match the pipe markings, causing concern during our receiving inspection. After contacting their quality department, they provided corrected EN 10204 3.1 certificates within 48 hours and confirmed the material traceability through photographic evidence of the original mill markings. Physical testing we conducted showed the material met all ASTM A312 requirements - chromium 24.6%, tensile strength 528 MPa, and proper grain structure from solution annealing. The pipes have been in service for 171 days at design temperature with satisfactory performance and no oxidation problems. Surface finish was adequate though not as smooth as some premium suppliers. For future orders, I would suggest implementing better quality control on documentation accuracy before shipment to avoid delays in customer receiving processes. The technical quality of the pipes themselves is good, and their willingness to quickly resolve the certificate issue was appreciated. 3 stars reflecting the documentation problem, though material quality itself would rate higher.
Robert Brown
United Kingdom
2025-09-06
Perfect 310 Pipes for Burner Nozzle Assembly
This is our 5th order over the past 14 months for various high-temperature furnace projects. Consistency across all orders has been remarkable - chemical composition varies less than 0.3% between batches, mechanical properties consistently exceed minimums, and dimensional tolerances remain within ±0.4mm. Latest order was 4.5 tons of 310 seamless pipes (89mm OD, Schedule 80, custom 4-meter lengths) for industrial burner nozzle assemblies operating at 1100°C intermittent service. The material's creep resistance has proven excellent in field testing - no deformation observed after 134 days of thermal cycling between 850-1100°C. Their custom cutting service provided precise lengths with ±0.8mm tolerance and clean square cuts requiring minimal preparation for welding. Threading to BSPT standards was accurate and assembly-ready. Technical consultation helped us optimize wall thickness selection for our specific pressure-temperature conditions, resulting in 15% material cost savings versus our original design. Documentation package included complete traceability from heat number through all processing steps. The relationship has evolved beyond simple supplier-customer to true technical partnership. Excellent for demanding thermal applications requiring both performance and reliability.
William Taylor
Australia
2025-09-24
Good Value 310 Welded Pipes for Thermal System
Good value for specialized thermal processing application. We compared quotes from 5 suppliers across Australia, China, and India for our heat treatment furnace upgrade project, and their price was 18% lower than Australian suppliers while providing equivalent ASTM A312 certification and testing documentation. Ordered 6 tons of welded 310 pipes (168mm OD, 6mm wall, Schedule 10) with automatic TIG welding for atmosphere circulation piping at 1000°C. Weld radiographic reports showed acceptable quality with minor porosity on 4 welds that were within ASME B31.3 acceptance criteria but not perfect. Post-weld heat treatment certificates confirmed proper solution annealing at 1080°C. The pipes have performed reliably for 112 days in continuous service with no issues. Delivery took 26 days, slightly longer than the quoted 21 days due to shipping logistics from Asia to Australia. Overall, the combination of competitive pricing, proper certifications, and adequate quality makes this a practical choice for industrial furnace applications. 4 stars because weld quality could be more consistent and delivery timing was slightly delayed.
Carlos Silva
Brazil
2025-10-12
Premium 310 Seamless Pipes for Chemical Processing
Premium quality seamless pipes for our nitric acid production expansion. We ordered 13 tons of 310 stainless steel seamless pipes (219mm OD, Schedule 40, 6-meter lengths) for reactor vessel piping operating at 950°C with 2.8 MPa internal pressure. Quality assessment was thorough - material certificates showed chromium 25.1%, nickel 20.8%, carbon 0.16%, all within tight specification ranges. We conducted independent tensile testing at our lab and results showed 545 MPa tensile strength and 225 MPa yield strength, exceeding ASTM A312 minimums by 6% and 10% respectively. Ultrasonic examination revealed zero subsurface defects. Surface finish was exceptional 2B with Ra 0.5μm measured values. The dimensional accuracy was outstanding with OD tolerance of ±0.4mm and wall thickness variation under 8%. Pipes arrived in 15 days with excellent wooden crate packaging and moisture protection. This is our 3rd major order. Technical support from their metallurgy team has been invaluable for optimizing our high-temperature piping designs. Highly recommended for critical chemical processing applications requiring both corrosion and heat resistance.
Ahmed Al-Hassan
United Arab Emirates
2025-10-30
Solid Quality 310 Pipes for Furnace Retrofit
Solid quality product for our refinery furnace tube replacement project. Ordered 9.5 tons of 310 seamless pipes (152mm OD, 12mm wall thickness, random lengths 5-7 meters) for radiant section service at 1020°C. We compared quotes from 4 suppliers in UAE, India, and China - their pricing was mid-range but delivery time was fastest at 21 days versus 35-45 days from others. Material certificates showed full ASTM A312 compliance with carbon at 0.18% and proper solution annealing at 1065°C. Surface quality was good with minor mill scale on 2 pieces that cleaned off easily. The pipes have been in service for 89 days with excellent oxidation resistance - no visible scaling even at tube metal temperatures reaching 1050°C during peak loads. Communication could be faster during order processing, but overall a reliable supplier for high-temperature applications. 4 stars due to occasional delays in email responses, though product quality fully meets our specifications.
Wei Chen
Singapore
2025-11-18
Reliable 310 Pipes for Petrochemical Reactor
Long-term partner for high-temperature stainless steel piping solutions. This is our 6th order over the past 18 months for various petrochemical clients. Quality consistency has been outstanding - every batch meets the same high standards with chromium content consistently between 24.5-25.2% and mechanical properties exceeding minimum ASTM requirements by 8-12%. Their seamless pipe production capabilities are excellent, with dimensional tolerances within ±0.3mm on OD measurements. Latest order was 11 tons of 310 seamless pipes (273mm OD, Schedule 80) for a sulfuric acid concentrator project operating at 1040°C. The pipes arrived with complete documentation including PMI reports, heat treatment records, and calibrated test certificates. Their technical team provided valuable input on thermal expansion allowances and support spacing calculations. Pricing remains competitive even as order volumes have increased. Looking forward to continued partnership on upcoming nitric acid plant projects.
Hans Mueller
Germany
2025-12-06
Good Value 310 Welded Pipes for Heat Treatment
Good value for the price on our atmosphere circulation system upgrade. We compared quotes from 7 suppliers across Europe and Asia, and their price was 12% lower than the European average while maintaining ASTM A312 compliance and proper mill certifications. Ordered 5.5 tons of welded 310 pipes (114mm OD, Schedule 10S) with TIG welding. The weld quality was good but required minor grinding on 3 pieces to achieve our surface finish requirements - this added 2 days to our installation schedule. Radiographic reports showed full penetration on all welds. The pipes have performed well at 980°C for the past 67 days in our carburizing furnace application. Overall, solid product quality and competitive pricing make this a reliable supplier for industrial furnace components. 4 stars because the weld finish could be more consistent, though this is a minor issue for non-critical applications.
Michael Johnson
United States
2025-12-26
Outstanding Service and Technical Support
Excellent service experience from inquiry to delivery for our ethylene cracking unit project. Communication was exceptional - their materials engineer provided detailed pressure-temperature rating calculations within 4 hours of our initial inquiry and helped us select the optimal wall thickness for our 1050°C operating conditions. Technical documentation was comprehensive including EN 10204 3.1 certificates, creep rupture data, and thermal expansion calculations. Delivery was impressive - 12-ton order of welded 310 pipes (219mm OD, 8mm wall) arrived in 18 days, 6 days ahead of schedule despite custom beveling requirements. Packaging was professional with wooden crates, protective caps, and clear identification marking on each pipe. Every piece was individually wrapped and secured. The sales team followed up post-delivery to ensure installation went smoothly. This level of technical support and customer care is rare in the industry. Will definitely use them for our upcoming reformer project.
James Wilson
United Kingdom
2026-01-10
Excellent Quality 310 Seamless Pipes for Furnace Application
We ordered 8 tons of 310 stainless steel seamless pipes (168mm OD, Schedule 40, 6-meter lengths) for our industrial furnace retrofit project. Material certificates showed chromium content at 24.8% and nickel at 20.3%, fully compliant with ASTM A312. We conducted hydrostatic pressure testing at 4.5 MPa and ultrasonic examination - all results exceeded specifications. Surface finish was excellent with Ra 0.6μm and zero defects observed. The pipes have been in continuous service at 1020°C for 45 days with no oxidation issues. Delivered in 11 days, ahead of the quoted 14-day schedule. This is our 4th order from this supplier. Quality has been consistently excellent across all orders. Highly recommended for high-temperature furnace applications and thermal processing equipment.
了解供应商
可定制
超低价
$1105
1-49 吨
基准价
$1055
50-99 吨
4.5% 优惠
$1030
≥100 吨
6.8% 优惠
价格有效期：随行就市
付款与交货
- 交期：
- 随报价一并确认
- 包装：
- 标准出口包装
- 样品：
- 可按需提供
