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矩形空心型钢钢管 - 工厂直供

中和建材有限公司
已认证 定制生产厂家 · 3 年 · 中国 China
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$548 1-49 吨 基准价
$524 50-99 吨 4.4% 优惠
$512 ≥100 吨 6.6% 优惠
价格有效期:随行就市

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最小起订量: 1 吨

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商品小计 US$ 548.00
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矩形空心型钢钢管技术规范

性能参数说明
产品名称矩形空心型钢(RHS)钢管冷成型或热成型矩形结构钢管
材质等级S235JR / S355J2 / Q235B / Q355B / ASTM A500 Gr.B / Gr.C国际等效牌号:S235JR ≈ Q235B;S355J2 ≈ Q355B;符合 EN 10219 / EN 10210 的牌号
标准符合性EN 10219、EN 10210、ASTM A500、ASTM A513、GB/T 6728、JIS G3466冷成型(EN 10219 / GB/T 6728)和热加工(EN 10210)结构空心型钢
化学成分 – C≤ 0.22%(S355)/ ≤ 0.20%(A500 Gr.C)碳含量控制焊接性和硬度
化学成分 – Mn≤ 1.60%(S355J2)/ ≤ 1.35%(A500)锰提高抗拉强度和韧性
化学成分 – P / SP ≤ 0.035% / S ≤ 0.035%低 P 和 S 含量确保改善冲击韧性和焊接性
化学成分 – Si≤ 0.55%(S355J2)硅作为脱氧剂;影响屈服强度
抗拉强度470–630 MPa(S355J2)/ ≥ 427 MPa(A500 Gr.C)依据 EN 10219-1 表 5 和 ASTM A500 表 1;数值随壁厚变化
屈服强度≥ 355 MPa(S355,t ≤ 16 mm)/ ≥ 317 MPa(A500 Gr.C)根据标准表格,最小屈服强度随壁厚增加而降低
伸长率≥ 22%(S235JR)/ ≥ 20%(S355J2)/ ≥ 21%(A500 Gr.C)在标距 L₀ = 5.65√S₀ 上测量;确保结构应用的延展性
尺寸范围宽度:20×10 mm – 600×400 mm;壁厚:1.0–25 mm;长度:6 m / 12 m 或定制可提供标准和定制尺寸;公差依据 EN 10219-2 或 ASTM A500
表面处理黑材(轧制表面)、热浸镀锌(HDG)、涂油、喷漆、环氧涂层热浸镀锌按 EN ISO 1461;锌层厚度 ≥ 45–85 μm,视材料厚度而定
应用结构框架、建筑柱/梁、机械、家具、农业设备、海洋工程结构广泛用于土木工程、工业制造和模块化建筑
认证ISO 9001:2015、CE 认证(EN 1090)、工厂测试证书(EN 10204 3.1 / 3.2)可提供第三方检验:SGS、BV、TÜV;提供完整可追溯性文件
包装钢带捆扎(每捆 1–3 公吨);木质垫料;可提供适合海运的出口包装捆重和尺寸可根据运输要求定制;可按要求提供端盖
最小起订量5 公吨(标准尺寸)/ 1 公吨(非标准或定尺切割)接受混合尺寸订单;交货期 7–25 天,视规格和数量而定

矩形空心型钢钢管 - 工厂直供

作为值得信赖的矩形空心型钢钢管供应商,我们提供钢厂直供的结构管材,其设计制造满足全球现代建筑、基础设施和工业制造项目的严苛要求。矩形空心型钢(RHS)钢管已成为建筑师、工程师和制造商首选的结构型材,因为他们需要承载强度、尺寸一致性和美学通用性之间的精确平衡。我们的RHS钢管按照国际公认标准生产——包括EN 10219、ASTM A500、AS/NZS 1163和GB/T 6728——确保每一截面都能可靠运行,无论是集成到高层框架、重型机械底盘还是模块化桥梁组件中。通过直接从我们自己的轧钢厂采购,我们消除了中间商加价,使买家能够以具有成本效益的钢厂直供价格获得认证质量的产品。凭借数十年的冶金专业知识和全球物流网络,我们能够按时完成小批量订单和大规模项目需求。

什么是矩形空心型钢钢管?

矩形空心型钢钢管是一种封闭截面的结构管材,具有矩形横截面,四边壁厚均匀。RHS钢管由碳钢、低合金钢或耐候钢卷通过冷成型或热成型工艺制造,沿两个轴向均具有出色的抗弯性能。与实心棒材相比,空心核心减轻了整体重量,使其成为跨度关键和重量敏感结构应用的理想选择。标准屈服强度范围从235 MPa(S235级)到420 MPa(S420级),抗拉强度通常在360 MPa至550 MPa之间,具体取决于指定牌号和成型工艺。

矩形空心型钢钢管技术规格

我们的矩形空心型钢钢管库存涵盖广泛的尺寸范围,以满足多样化的工程需求。壁厚公差按 EN 10219-2 保持在 ±10% 以内,直线度偏差不超过总长度的 0.15%。所有型材在发货前均经过水压或涡流无损检测,每批货物均随附完整的钢厂测试报告(MTR)。

参数 规格 / 范围
适用标准 EN 10219, ASTM A500, AS/NZS 1163, GB/T 6728
钢种 S235JRH, S355J2H, Grade B, Grade C, C350L0
尺寸范围(宽 × 高) 40×20 mm 至 500×300 mm
壁厚 1.5 mm – 20 mm
标准长度 6 m / 12 m(可提供定制长度)
屈服强度(最小值) 235 MPa – 420 MPa
抗拉强度 360 MPa – 550 MPa
密度 7.85 g/cm³(20°C 时)
表面处理 黑材(轧制态)、热浸镀锌、涂底漆
夏比冲击(S355J2H) −20°C 时最小 27 J
外圆角半径 ≤ 3.0 × 壁厚
直线度公差 ≤ 总长度的 0.15%

除标准库存外,我们的工厂能力支持针对非标准宽度、高度和壁厚的定制轧制计划。我们还提供增值加工服务——包括等离子切割、抛丸、镀锌和打包——以减少您的下游制造时间和成本。每一批次均可从原材料钢卷到成品型材全程追溯,并附有完整的化学成分和力学性能文件。

矩形空心型钢钢管制造商

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准备以工厂直销价格采购优质矩形空心型钢钢管?分享您的项目规格——尺寸、牌号、数量和交货目的地——我们的技术销售团队将在24小时内回复一份详细、无义务的报价。我们为60多个国家的结构钢分销商、建筑承包商和OEM制造商提供服务。

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矩形空心型钢钢管出口商

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
Ryan C.
United States
2025-02-02
Initial surface finish issue on primed sections — resolved after prompt supplier response
We ordered 30 tonnes of 80×40×4mm primed RHS to ASTM A500 Grade B for agricultural equipment frames. On receipt, roughly 15% of the bundle showed thin primer coverage on one face, likely a handling issue during the coating process. We raised it immediately and the supplier arranged a credit and dispatched replacement sections within 10 days — no dispute, no delays. The steel substrate and mechanical properties were fine throughout. The after-sales response was handled professionally, which matters. We're giving this a fair rating because the core product is good and the issue was addressed; we'll trial another order to see if the coating QC has improved.
用户
David H.
United Kingdom
2025-02-24
Competitive mill-direct rates on EN 10219 S355J2H — solid option for medium-volume buyers
We placed a trial order of 40 tonnes covering 100×60×5mm and 160×80×6.3mm RHS in S355J2H for a mezzanine floor project. Pricing came in 8% below our existing UK stockholder, which is meaningful at our volumes. Quality was as-specified, with hardness and tensile values confirmed by our in-house lab. Delivery was 24 days to Felixstowe, which is acceptable but slightly longer than quoted. The sales contact was straightforward and didn't oversell. We'll likely consolidate more of our import tonnage here once we've run a couple more orders to verify consistency.
用户
Claire B.
Australia
2025-03-18
Good value on AS/NZS 1163 C350L0 stock — pricing competitive, minor documentation delay
Ordered 95 tonnes of 250×150×9mm and 180×100×6mm RHS to AS/NZS 1163 C350L0 for a rural shed manufacturing customer. The steel itself is solid — mechanical properties on the MTRs align well with the standard, and our fabricator reported clean cutting and consistent weld prep. The only hiccup was a two-day delay in receiving the final test certificates, which held up our customs clearance slightly. The team resolved it promptly once we flagged it. Pricing was noticeably sharper than our previous Taiwanese supplier, so overall this represents good value. Would order again with a note to confirm document timelines upfront.
用户
Aisha M.
UAE
2025-04-09
Hot-dip galvanized RHS delivered on time for a coastal infrastructure project
Sourced 60 tonnes of 120×80×5mm hot-dip galvanized RHS to ASTM A500 Grade C for a marine-adjacent walkway structure in Abu Dhabi. The galvanizing coating thickness averaged 92 microns, exceeding our 85-micron specification. Documentation included full MTRs, galvanizing inspection certificates, and packing lists — everything our client's PMC required for project records. Customer support was responsive across the time zone difference, and the technical team helped us confirm the correct grade for our corrosion exposure category. Shipment arrived two days ahead of the agreed ETA at Jebel Ali.
用户
Tobias R.
Germany
2025-05-01
Custom non-standard section rolled on schedule — technical team understood our engineering brief
We needed a non-catalogue size: 260×140×10mm RHS in S420MH for a crane runway application. Most suppliers either couldn't roll it or quoted 16-week lead times. This supplier confirmed a custom rolling schedule within 48 hours and delivered 45 tonnes in 28 days. The technical sales engineer asked the right questions about our design loading and confirmed the appropriate EN 10219 sub-grade before quoting. Straightness deviation across 12m lengths was measured at 0.12%, within the stated 0.15% limit. Impressed by the engineering competence, not just the commercial side.
用户
James W.
United Kingdom
2025-05-23
Reliable repeat supplier — consistent quality across six consecutive orders
This is our sixth order in 14 months, totalling over 350 tonnes of RHS across various sizes from 40×20×2mm up to 300×200×12.5mm, all to EN 10219 S235JRH and S355J2H. What keeps us coming back is the batch-to-batch consistency — our fabrication shop rarely needs to adjust tooling between deliveries. The bundling and labelling are neat, which reduces our goods-in processing time. The sales team proactively flagged a port congestion issue in our last order and rerouted to avoid delay. That kind of account management genuinely matters to a distributor running tight stock cycles.
用户
Priya S.
India
2025-06-14
Mill-direct pricing saved us 11% vs. local distributor — quality fully compliant with GB/T 6728
Procured 80 tonnes of 150×100×6mm cold-formed RHS to GB/T 6728 Grade Q355B for an industrial shed project in Pune. Chemical composition and yield strength data on the MTRs matched our design requirements precisely. The supplier arranged eddy-current NDT reports without us even asking — that level of proactive documentation is rare. Mill-direct pricing was 11% below our regular domestic distributor. Delivery to Nhava Sheva port took 18 days, which kept our erection schedule intact. Highly recommended for serious procurement teams.
用户
Marcus T.
United States
2025-06-29
Exceptional dimensional accuracy on S355J2H sections — passed third-party inspection first time
We ordered 120 tonnes of 200×100×8mm RHS to EN 10219 S355J2H for a multi-storey car park frame in Texas. Wall thickness measured consistently at 7.93–8.04mm across the entire batch, well within the ±10% tolerance. Mill test reports arrived before the shipment, and Charpy impact values at −20°C came in at 34–38 J, comfortably above the 27 J minimum. Our third-party inspector passed the lot without a single NCR. Lead time was 22 days FOB — exactly as quoted. Will be specifying this supplier on our next two projects.

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
$548 1-49 吨 基准价
$524 50-99 吨 4.4% 优惠
$512 ≥100 吨 6.6% 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$ 548.00
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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