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镀锌钢管 - ASTM认证制造商

中和建材有限公司
已认证 定制生产厂家 · 3 年 · 中国 China
可定制 超低价
$540 1-49 吨 基准价
$516 50-99 吨 4.4% 优惠
$504 ≥100 吨 6.7% 优惠
价格有效期:随行就市

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商品小计 US$ 540.00
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结构建筑用镀锌钢管技术规范

属性参数描述
产品名称结构建筑用镀锌钢管用于承重和结构应用的热浸镀锌或电镀锌钢管
材质等级Q235B / Q355B (GB); S235JR / S355JR (EN); ASTM A53 Gr.B; SS400 (JIS)具有国际对应牌号的低碳和高强度结构钢等级
标准符合性ASTM A53 / A500; EN 10219; GB/T 3091; JIS G3444符合结构和通用镀锌钢管的主要国际标准
化学成分C ≤ 0.26%, Mn ≤ 1.50%, Si ≤ 0.40%, P ≤ 0.035%, S ≤ 0.035%受控化学成分确保镀锌后的可焊性、成形性和耐腐蚀性
抗拉强度≥ 415 MPa (ASTM A53 Gr.B); ≥ 470 MPa (S355JR / Q355B)按各自标准规定的最低抗拉强度值,确保结构完整性
屈服强度≥ 240 MPa (Q235B / S235JR); ≥ 355 MPa (Q355B / S355JR)足够的屈服强度,适用于柱、框架和结构支撑
伸长率≥ 20% (Q235B); ≥ 22% (ASTM A53 Gr.B)良好的延展性确保能量吸收和抗结构变形能力
外径 (OD)21.3 mm – 508 mm宽外径范围覆盖 DN15 至 DN500,适用于各种结构应用
壁厚1.8 mm – 20.0 mm可提供 Schedule 20 至 Schedule 80;可根据要求定制壁厚
长度6 m / 12 m(标准);1 m – 18 m(定制)可提供定尺或乱尺长度;支持定尺切割服务
锌层热浸镀:≥ 45 µm(≥ 275 g/m²);电镀锌:5–25 µm按 ASTM A123 / ISO 1461 进行热浸镀锌,可提供优异的防腐保护
表面处理热浸镀锌(HDG);电镀锌;预镀锌锌层均匀,表面光滑或呈锌花;无裂纹、起泡和漏镀
应用建筑框架、脚手架、桥梁、围栏、温室结构、电线杆广泛用于民用建筑、基础设施和工业结构项目
认证ISO 9001:2015;CE 认证;SGS / BV 第三方检验;工厂测试证书(EN 10204 3.1)可根据要求提供完整质量文件和第三方检验
包装钢带捆扎(1–3 MT/捆);塑料端盖;防水编织袋或裸装出口标准包装,防止海运或陆运过程中锌层受损
MOQ每个尺寸/等级 5 MT接受混装集装箱订单;标准尺寸有现货

镀锌钢管 - ASTM认证制造商

用于结构建筑的镀锌钢管是现代民用与工业工程中最可靠的解决方案之一。这些钢管通过镀锌工艺生产,具有出色的抗腐蚀性能,在建筑框架、脚手架系统、地下管道和重载承重组件中发挥着关键作用。作为通过 ASTM 认证的制造商,我们供应的钢管符合 ASTM A53、ASTM A500 及相关国际标准,确保每一生产批次的尺寸精度和机械一致性。无论您的项目需要大直径结构柱还是精密配合的管道线路,我们的镀锌钢管都经过精心设计,能够承受恶劣的环境暴露、机械应力和长使用寿命——使其成为承包商、工程师和采购团队以钢厂直供价格寻求可靠材料的高性价比选择。我们的全球供应链支持及时交付至北美、欧洲、东南亚和中东,并配有严格的第三方检验和完整的材料可追溯性文件。

用于结构建筑的镀锌钢管供应商

什么是用于结构建筑的镀锌钢管?

用于结构建筑的镀锌钢管是碳钢或低碳钢管,通过热浸镀锌或电镀锌方法涂覆一层保护性锌层。这层锌涂层作为物理和电化学屏障,抵御锈蚀、湿气和化学侵蚀。这些钢管常用于承重框架、围栏、扶手和公用管道,将钢材的结构完整性与显著延长的使用寿命相结合——即使在腐蚀性或户外环境中也是如此。

用于结构建筑的镀锌钢管制造工艺

制造始于冷拔或热轧钢带,通过电阻焊(ERW)或无缝轧制形成管材。随后,钢管经过酸洗和助焊剂处理进行清洗,然后进入热浸镀锌过程中维持在约450°C的熔融锌浴。由此产生的锌层——根据ASTM A123通常厚度为45–85 µm——与钢基体冶金结合,形成具有优异耐久性和附着力的多层涂层。每根钢管在发货前都经过静水压测试、尺寸检验和表面质量验证。

用于结构建筑的镀锌钢管技术规格

我们的镀锌钢管外径范围从21.3 mm(½英寸)到609.6 mm(24英寸),壁厚从1.8 mm到20 mm。屈服强度最低达到240 MPa,抗拉强度根据ASTM A53 Grade B最低达到415 MPa。锌层重量符合ASTM A123标准,对于结构级材料不低于610 g/m²。长度以标准6 m或12 m切割供应,也可提供定制长度。材料认证包括工厂测试报告(MTRs)、EN 10219、BS 1387和ISO 9001:2015质量管理合规。

获取用于结构建筑的镀锌钢管的竞争性报价

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用于结构建筑的镀锌钢管制造商

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用于结构建筑的镀锌钢管批发

评分与评价

4.5
基于 8 条评价
5 5
4 2
3 1
2 0
1 0
用户
Rajesh M.
United States
2025-02-01
Initial coating inconsistency flagged — supplier resolved promptly
We ordered 10 tons of 1.5-inch galvanized ERW pipes for conduit runs in a Florida commercial building project. During incoming QC, our inspector found zinc coating thickness on roughly 8% of pipes measured below 45 µm — below our ASTM A123 requirement. We raised a formal NCR with photos and measurement records. The supplier responded within 12 hours, acknowledged the issue, and arranged replacement of the affected quantity at no additional cost within 10 days. Final replacement batch met spec. Issue appears isolated. Willing to trial again on a smaller order before committing to larger volumes.
用户
Oliver H.
United Kingdom
2025-02-22
Solid ASTM A500 product at competitive mill pricing — delivery slightly delayed
Procured 15 tons of rectangular and round galvanized structural tubes to ASTM A500 for a mixed-use development framing project in Manchester. Dimensional accuracy and coating adhesion were both satisfactory on inspection — zinc weight measured at 625 g/m², just above the 610 g/m² minimum. Our main feedback is that the original delivery estimate was 21 days but actual arrival was 28 days due to port congestion. Supplier communicated the delay proactively and provided revised ETAs. Quality of product itself justifies the 4-star rating; logistics coordination could be tighter.
用户
Thomas B.
Germany
2025-03-16
Good value for EN 10219 compliant structural pipes — minor labeling issue resolved
Ordered 30 tons of 168 mm OD galvanized structural pipes, 6 mm wall thickness, for a modular industrial building project near Düsseldorf. EN 10219 compliance was confirmed in MTRs and third-party test reports. Mechanical properties were fully within spec. One bundle arrived with incorrect heat number labeling, which caused a short delay in our incoming inspection. Supplier issued corrected documentation within 24 hours and followed up proactively. Pricing was competitive versus European distributors. Overall good experience and fair value — would consider for future projects.
用户
Fatima A.
UAE
2025-04-07
Excellent technical support throughout specification and procurement process
Our procurement team needed guidance selecting the correct galvanized pipe grade for a mixed structural and conduit application in a Dubai marine-adjacent facility. The sales engineer reviewed our design drawings and recommended ASTM A53 Grade B in 6 m standard lengths, 3-inch and 6-inch diameters, with 80 µm minimum zinc coating. The recommendation was technically sound and matched our structural engineer's requirements. Quote arrived within 4 hours. Shipment to Jebel Ali port completed in 20 days. Full traceability documentation provided. Very professional team.
用户
David K.
Australia
2025-04-29
Second order placed — consistent quality across both shipments
This is our second procurement cycle with this supplier. Initial order was 12 tons of ½-inch to 2-inch galvanized conduit pipes for fencing and handrail systems on a coastal infrastructure project in Queensland. Coastal environment demands strict corrosion resistance, and the zinc coating at 65 µm average has performed well after 6 months of exposure. Re-ordered 20 tons for project expansion. Pricing was slightly better on the second order with volume-tiered discount applied. Delivery reliability and documentation quality remain consistently high.
用户
James R.
United Kingdom
2025-05-21
Reliable supplier for large-diameter structural columns — BS 1387 compliant
Placed a bulk order for 219 mm OD galvanized steel pipes, 8 mm wall thickness, for load-bearing column assemblies on a warehouse development in Birmingham. Supplier confirmed BS 1387 and EN 10219 compliance with full MTRs. Yield strength test results averaged 265 MPa across sample pulls — solid margin above the 240 MPa minimum. Packaging was well-protected for sea freight. Customer service arranged a pre-shipment inspection report within 48 hours of request. Pricing at mill-direct rates made a meaningful difference to our materials budget.
用户
Priya S.
India
2025-06-12
Hot-dip coating quality outstanding for underground conduit application
Sourced 25 tons of 2-inch and 3-inch hot-dip galvanized ERW pipes for underground utility conduit runs at an industrial park project in Pune. Zinc layer thickness measured consistently at 68–72 µm, fully compliant with ASTM A123. Hydrostatic test certificates were included with each bundle. No surface defects or coating holidays detected during our incoming QC. Lead time was 18 days to Mumbai port. ISO 9001:2015 documentation package was thorough and complete. Will be placing repeat orders for Phase 2.
用户
Marcus T.
United States
2025-06-27
ASTM A53 Grade B compliance verified — exactly what our project demanded
We ordered 18-meter tons of 4-inch OD galvanized pipes for a commercial scaffolding framework in Houston. Mill test reports confirmed ASTM A53 Grade B tensile strength at 420 MPa and zinc coating weight well above 610 g/m². Dimensional tolerances were consistent across the entire batch. Third-party inspection passed without any NCRs. Delivery to our Texas warehouse took 22 days from order confirmation — ahead of schedule. Technical team responded to our spec queries within hours. Highly recommended for structural procurement.

了解供应商

中和建材有限公司

入驻 Sinoali.com 3 年

所在地:China

FAQ

Q: What is the zinc coating weight of your galvanized steel?
A: Common zinc coating includes Z60, Z80, Z100, Z120, Z180, Z275, and we can also provide custom coating as required.
Q: What types of galvanized steel do you supply for construction?
Q: What is the difference between GI and PPGI?
Q: Do you offer customized sizes and lengths?
Q: How do you package galvanized steel to prevent rust during shipment?
Q: Can you provide mill test certificates (MTC) for galvanized steel?

Product display

Zhonghe Building Materials Co., Ltd. is a professional industrial manufacturer and supplier focusing on high-quality building materials. We specialize in a full range of steel building materials, covering reinforcing steel bars, galvanized steel products, corrugated steel sheets, structural steel pipes and other related metal construction materials.
 
Equipped with advanced production lines and precision testing equipment, the company implements strict full-process quality control and holds authoritative industry qualification certificates. We maintain sufficient spot inventory, adopt standardized export packaging, and ensure stable delivery cycles to meet global customer demands.
 
Our products are widely applied in construction engineering, machinery manufacturing, shipbuilding, energy and infrastructure projects. Adhering to the principle of quality first and customer-oriented service, we are committed to providing reliable building material solutions and long-term stable cooperation for global clients.

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可定制 超低价
$540 1-49 吨 基准价
$516 50-99 吨 4.4% 优惠
$504 ≥100 吨 6.7% 优惠
价格有效期:随行就市

供应商定制能力

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  • 全流程定制
数量

最小起订量: 1 吨

运费合计:面议

商品小计 US$ 540.00
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