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结构用无缝钢管 - 出厂直销价

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
$720 1-49 吨 基准价
$688 50-99 吨 4.4% 优惠
$673 ≥100 吨 6.5% 优惠
价格有效期:随行就市

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商品小计 US$ 720.00
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结构建筑用无缝钢管技术规范

属性参数描述
产品名称结构建筑用无缝钢管用于结构和承重应用的热轧或冷拔无缝碳钢管
材质等级ASTM A106 Gr.B / A53 Gr.B; EN 10210 S355J2H; GB/T 8162 20# / 45#; JIS G3444 STK400可提供国际等效牌号;根据结构载荷和使用条件选择牌号
标准符合性ASTM A106 / A53; EN 10210-1; GB/T 8162; JIS G3444符合主要国际结构管标准对力学性能和尺寸的要求
化学成分 (C)≤ 0.30% (A106 Gr.B); ≤ 0.22% (S355J2H)控制碳含量以确保可焊性和结构完整性
化学成分 (Mn)0.29% – 1.06% (A106 Gr.B); ≤ 1.60% (S355J2H)锰可提高钢管的抗拉强度和韧性
化学成分 (P / S)P ≤ 0.035%; S ≤ 0.035%低磷、低硫含量可最大限度减少脆性并改善焊接质量
化学成分 (Si)≥ 0.10% (A106 Gr.B); ≤ 0.55% (S355J2H)硅作为脱氧剂并有助于提高强度
抗拉强度≥ 415 MPa (A106 Gr.B); ≥ 470 MPa (S355J2H)各标准规定的最低抗拉强度;确保结构承载能力
屈服强度≥ 240 MPa (A106 Gr.B); ≥ 355 MPa (S355J2H)最低屈服强度,确保在结构载荷下抵抗永久变形
伸长率≥ 30% (A106 Gr.B); ≥ 22% (S355J2H)2 英寸标距内的最低伸长率;表明延展性和能量吸收能力
外径 (OD) 范围21.3 mm – 660 mm宽泛的外径范围,可满足各种结构柱、梁和桁架应用
壁厚范围2.0 mm – 60 mm壁厚根据设计压力和结构载荷要求选定
长度标准:6 m / 12 m;定制:最长 18 m可提供定尺或乱尺长度;可根据项目规格提供定制切割服务
表面处理黑漆、裸管、热浸镀锌或环氧涂层表面处理根据防腐要求和使用环境选定
应用结构柱、桁架、脚手架、桥梁、机械框架、建筑基础广泛应用于土木工程、工业建筑和基础设施项目
认证ISO 9001;CE 标志 (EN 10210);按 EN 10204 3.1 出具的工厂测试证书 (MTC)可提供第三方检验;每批货物均附完整可追溯性文件
包装六角形捆扎 (每捆 1–3 MT);钢带捆扎;配端盖可提供适合海运的出口包装;可根据要求提供木质垫料和防水包裹
MOQ每个钢级/规格 5 MT接受混装集装箱订单;标准规格有现货,交货期短

结构用无缝钢管 - 出厂直销价

结构建筑用无缝钢管是现代民用与工业工程中最为关键的承重部件之一。其通过热轧或冷拔工艺制造,消除了纵向焊缝,从而在每一个横截面上都能提供均匀的壁厚、卓越的尺寸精度和一致的机械完整性。全球的工程师和采购专家在焊缝失效绝不可接受的应用中指定使用无缝结构管——从高层建筑框架和桥梁塔柱到海上平台导管架和重型机械支撑。我们的钢厂直供模式去除了中间商加价,使客户能够以高性价比的价格采购经过认证的无缝结构管,而无需在质量上妥协。凭借超过每年120,000公吨的生产能力和内部第三方检验能力,我们为北美、欧洲、东南亚和中东的承包商、EPC公司和钢材服务中心提供服务,并保证稳定的交货周期和可追溯的材料文件。

结构建筑用无缝钢管供应商

什么是结构建筑用无缝钢管?

结构建筑用无缝钢管是一种无焊缝的中空圆柱形截面,通过穿孔实心钢坯并将其轧制或拉拔至所需尺寸而成。这些钢管遵循ASTM A500、ASTM A53 Grade B、EN 10210和GB/T 8162等标准,为柱、桁架、桩及其他主要结构构件提供可靠的抗压、抗拉和抗扭强度,在这些应用中尺寸精度和机械均匀性至关重要。

结构建筑用无缝钢管制造商

结构建筑用无缝钢管 — 技术规格

我们的结构用无缝钢管按照最严苛的项目规格生产。关键参数包括外径(OD)范围 21.3 mm 至 914 mm,壁厚 2.0 mm 至 100 mm,长度可达 12,000 mm(可定制长度)。根据 ASTM A500,屈服强度最低达到 Grade A 的 250 MPa 和 Grade B 的 315 MPa,抗拉强度最低达到 400 MPa。材质牌号包括 S235、S355、Q345B、ASTM A53B 以及 API 5L X42–X70 等效牌号。可根据要求提供热浸镀锌、3PE 防腐涂层和清漆涂装等表面处理。

参数 规格 / 范围 标准参考
外径 (OD) 21.3 mm – 914 mm ASTM A500 / EN 10210
壁厚 2.0 mm – 100 mm GB/T 8162 / ASTM A53
屈服强度(最小值) 250 MPa (Gr. A) / 315 MPa (Gr. B) ASTM A500
抗拉强度(最小值) 400 MPa ASTM A500 / EN 10210
延伸率(最小值) 21% (Gr. A) / 23% (Gr. B) ASTM A500
钢材密度 7.85 g/cm³ at 20°C —
可选牌号 S235, S355, Q345B, A53B, X42–X70 EN / GB / ASTM / API
长度 最长 12,000 mm(可定制) 按订单要求
表面处理 裸管 / 镀锌 / 3PE / 清漆 按项目规格
第三方检验 SGS, BV, TÜV, Lloyd's 可按需提供

获取结构建筑用无缝钢管的竞争力报价

准备以钢厂直销价格采购用于结构建筑的高级无缝钢管?我们的技术销售团队会评估您的项目图纸和载荷要求,推荐最具成本效益的钢种和规格——通常在询价后24小时内提供详细报价。无论您需要5公吨的试订单还是超过500公吨的批量订单,我们都能根据您的项目时间表灵活调整。

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结构建筑用无缝钢管工厂

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
Khalid A.
UAE
2025-02-02
Initial documentation issue resolved promptly — quality of pipe itself is good
We ordered 20 metric tons of ASTM A500 Grade B seamless pipe, OD 219.1 mm, wall thickness 12.7 mm, for a commercial building column application in Dubai. The pipe dimensions and mechanical properties — yield 318 MPa, tensile 408 MPa — were fully compliant. However, the initial shipment documentation was missing the BV third-party inspection certificate, which caused a hold at Dubai customs for four days. After escalating to the sales manager, the certificate was emailed within two hours and the physical copy arrived by courier the following day. The issue was resolved and the pipe passed inspection without any quality findings. Would recommend, but advise confirming all documentation checklist before vessel departure.
用户
Liam C.
Australia
2025-02-24
Competitive pricing on S235 seamless pipe, lead time slightly longer than quoted
Ordered 25 metric tons of S235 seamless structural pipe to EN 10210, OD 76.1 mm to 139.7 mm, various wall thicknesses from 5 mm to 8 mm, for light structural framing applications. Material quality and certification were exactly as specified, and the mill-direct price was 9% below our previous Chinese supplier on a landed-cost basis. Lead time came in at 38 days versus the 30 days initially quoted, which caused a minor scheduling adjustment on our end. The sales team communicated the delay proactively and provided updated vessel booking details. Quality is solid and pricing is strong — we will continue to work with them.
用户
Fiona H.
United Kingdom
2025-03-18
Good value on ASTM A500 Gr. B, minor packaging improvement needed
We purchased 30 metric tons of ASTM A500 Grade B seamless pipe, OD 114.3 mm, wall thickness 8 mm, for structural truss fabrication. Mechanical properties were on spec — tensile strength 415 MPa, yield 320 MPa — and the price was competitive versus UK stockholders by roughly 12%. The only issue was that a small number of pipe ends showed minor surface scratches from bundling straps during transit, though nothing that affected usability after a light grind. The supplier acknowledged the feedback and said they would add end protectors on future shipments. Overall a positive experience and we will order again.
用户
Sarah M.
United States
2025-04-09
Fast turnaround and full traceability for an offshore support structure
We needed 60 metric tons of heavy-wall seamless pipe — OD 508 mm, wall thickness 40 mm — for jacket leg sections on a shallow-water offshore platform. The supplier confirmed ASTM A53 Grade B compliance and arranged Lloyd's Register third-party inspection at the mill. Heat traceability was maintained throughout: each pipe bundle was tagged with heat number, OD, WT, and grade. What impressed us most was the 24-hour quotation turnaround after we submitted our technical data sheet. Final delivery was 35 days, meeting our critical-path milestone. Quality documentation was complete and audit-ready.
用户
Priya S.
India
2025-05-01
Consistent quality across a 150-tonne bulk order for pile foundations
This is our second major purchase — 150 metric tons of GB/T 8162 Q345B seamless pipe, OD 273 mm, wall thickness 20 mm, used as driven piles for a commercial complex foundation in Pune. We had the material tested at an independent laboratory here in India, and yield strength averaged 370 MPa against a 345 MPa requirement. Elongation at break exceeded 23% on all samples. The 3PE anti-corrosion coating was applied uniformly with no holidays detected during holiday testing. Price per ton was noticeably lower than our previous domestic supplier for equivalent certified material. Repeat order already placed.
用户
Tobias W.
Germany
2025-05-23
S355 seamless pipe met every EN 10210 requirement for our industrial hall project
We sourced 45 metric tons of S355 seamless structural pipe, OD 168.3 mm and 193.7 mm, wall thickness 10 mm and 12.5 mm respectively, for primary column members in a large industrial hall. Chemical composition and Charpy impact test results were fully compliant with EN 10210-1. The technical sales team reviewed our structural drawings before quoting and recommended the most economical wall thickness for our load case — that kind of proactive consultation is rare. TÜV inspection was coordinated smoothly. Delivery was 31 days, which matched the promised schedule precisely.
用户
James R.
United Kingdom
2025-06-14
Reliable mill-direct supply for our stockholding programme
As a steel service centre, we require consistent mechanical properties across multiple production batches. We have now placed three orders totalling approximately 210 metric tons of ASTM A500 Grade B seamless pipe, ranging from OD 88.9 mm to 219.1 mm. Each heat's tensile strength has come in above 420 MPa, comfortably exceeding the 400 MPa minimum. Documentation — including MTC, packing lists, and BV inspection reports — has been complete and accurate every time. The mill-direct pricing gives us a meaningful margin advantage when we resell to fabricators. Highly recommended for serious stockholders.
用户
Marcus T.
United States
2025-06-29
Exceptional dimensional accuracy on large-diameter structural pipe
We ordered 80 metric tons of seamless structural pipe to EN 10210 specification, OD 355.6 mm with 16 mm wall thickness, for a bridge pylon project in Texas. Mill test certificates confirmed yield strength well above the 315 MPa minimum. Wall thickness tolerances were within ±0.5 mm across the entire batch — tighter than the standard allows. Third-party SGS inspection was arranged without any friction from the supplier. Lead time was 28 days from order confirmation to port loading, which kept our project schedule intact. Will specify this supplier again on our next infrastructure bid.

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 types of steel pipes do you supply for building?
A:We supply seamless steel pipes, ERW welded pipes, galvanized steel pipes, square and rectangular steel pipes for construction use.
Q: What sizes and dimensions are available?
Q: Do you accept customized length or cutting service?
Q: Do you offer galvanized or anti-corrosion treatment?
Q: What packaging and loading method do you use?
Q: Can your steel pipes be used for structural and plumbing construction?

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
$720 1-49 吨 基准价
$688 50-99 吨 4.4% 优惠
$673 ≥100 吨 6.5% 优惠
价格有效期:随行就市

供应商定制能力

  • 来图定制
  • 来样定制
  • 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$ 720.00
分享:
发起订单请求
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

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