面向进口商、经销商与项目买家的中国钢材采购服务

建筑用碳钢管 - 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
可定制 超低价
$620 1-49 吨 基准价
$593 50-99 吨 4.4% 优惠
$579 ≥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$ 620.00
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随报价一并确认
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产品详情

建筑用碳钢管技术规范

属性参数描述
产品名称建筑用碳钢管用于建筑、基础设施和土木工程项目的结构承重钢管
材料牌号ASTM A53 Gr.B / A106 Gr.B / EN 10210 S355J2H / GB/T 8162 20#国际等效牌号:S355J2H (EN) ≈ A53 Gr.B (ASTM);20# (GB) ≈ ASTM A106 Gr.B
标准合规ASTM A53 / ASTM A106 / EN 10210 / EN 10219 / GB/T 8162 / JIS G3444符合结构和机械用碳钢管的主要国际标准
化学成分 (C)≤ 0.30%碳含量控制硬度和可焊性;较低的 C 含量可改善现场焊接性能
化学成分 (Mn)0.29% – 1.06%锰可提高结构应用中的抗拉强度和韧性
化学成分 (P / S)P ≤ 0.035% / S ≤ 0.035%控制磷和硫含量以确保延展性并降低脆性
化学成分 (Si)≤ 0.35%硅作为脱氧剂;提高强度而不显著降低延展性
抗拉强度415 – 655 MPa (ASTM A53 Gr.B)根据 ASTM A53,最小抗拉强度为 415 MPa;EN 10210 S355J2H 最小为 470 MPa
屈服强度≥ 240 MPa (A53 Gr.B) / ≥ 355 MPa (S355J2H)屈服强度因牌号而异;S355J2H 更适用于高荷载结构柱和框架
伸长率≥ 22%(纵向,A53 Gr.B)确保足够的延展性,以适应抗震和动态建筑环境
外径 (OD)21.3 mm – 660 mm宽泛的外径范围涵盖脚手架管 (48.3 mm)、结构柱、打桩和桁架杆件
壁厚2.0 mm – 40.0 mm可提供 Schedule 20 至 Schedule XXS;厚壁适用于高承载应用
长度6 m / 12 m 或定制切割标准轧制长度;可根据项目规格提供不定尺或定尺长度
表面处理黑漆 / 热浸镀锌 / 裸管 / 环氧涂层镀锌处理(最小 85 μm)适用于户外和腐蚀性环境;黑管用于室内结构用途
应用结构柱、脚手架、打桩、桁架、桥梁、模板支撑广泛用于住宅、商业和土木建筑中的承载和框架用途
认证ISO 9001 / CE 认证 / 工厂测试证书 (EN 10204 3.1 / 3.2)可提供第三方检验;MTC 可追溯至炉号和化学成分分析
包装六角形或方形捆扎;钢带打包;装配端盖每捆重量通常为 2–3 MT;海运使用木质垫料;可根据买方要求裸装或包裹
MOQ每个尺寸/钢级 25 MT接受混装集装箱订单;可提供 FOB、CFR、CIF 条款;交货期 15–30 天

建筑用碳钢管 - 钢厂直供

建筑用碳钢管是全球住宅、商业和工业建筑项目中作为基础结构和流体输送材料使用的。我们的建筑级碳钢管直接来自认证钢厂,提供项目工程师和采购团队所依赖的一致机械性能、尺寸精度和规范合规性。无论您的项目需要承重结构柱、地下公用设施管道、暖通空调分配管线还是高压灭火系统,正确的碳钢管规格对结构完整性和长期成本效率都至关重要。通过钢厂直供供应链,买家消除了中间商加价,在不影响材料可追溯性或认证的情况下获得具有成本效益的价格。我们的库存涵盖广泛的外径、壁厚和钢种,全部附有完整的钢厂测试报告(MTR)和第三方检验选项,以满足最严格的项目规格。

什么是建筑用碳钢管?

建筑用碳钢管是一种由铁碳合金制成的管状钢产品——通常按重量计含碳量为0.05%至0.30%——设计用于承受建筑和土木工程环境中的结构载荷、内部压力和环境暴露。这些管道通过无缝或电阻焊(ERW)工艺生产,符合国际公认标准,包括ASTM A53、ASTM A106、EN 10210和BS 1387,使其适用于结构框架、管道、燃气分配、打桩和脚手架系统。

建筑用碳钢管供应商

建筑用碳钢管技术规格

建筑级碳钢管可提供全面的尺寸范围和机械性能。下表列出了结构工程师和采购专业人员最常指定的核心技术参数:

参数 规格 / 数值
适用标准 ASTM A53 Gr. B, ASTM A106 Gr. B/C, EN 10210, BS 1387, API 5L
制造方法 无缝 (SMLS) / 电阻焊 (ERW) / 埋弧焊 (SAW)
外径 (OD) ½ 英寸 (21.3 mm) 至 60 英寸 (1524 mm)
壁厚 SCH 20 至 SCH XXS (1.65 mm – 59.54 mm)
碳含量 0.05% – 0.30%(按 ASTM A53 Gr. B 最大 0.30%)
抗拉强度 最小 415 MPa (ASTM A53 Gr. B) / 最小 485 MPa (ASTM A106 Gr. B)
屈服强度 最小 240 MPa (ASTM A53 Gr. B) / 最小 275 MPa (ASTM A106 Gr. B)
伸长率 ≥ 30%(标距 2 英寸)
密度 20°C 时为 7.85 g/cm³
长度 标准 6 m / 12 m;可提供定制定尺切割
表面处理 黑漆、热浸镀锌 (HDG)、裸管或环氧涂层
端部处理 平端 (PE)、坡口端 (BE)、螺纹加接箍 (T&C)
静水压试验压力 按 ASTM A53 / A106 标准要求(最高 20.7 MPa)
注意: 所有产品均随附完整的工厂测试报告(MTR / EN 10204 3.1 证书)。可根据要求提供 SGS、BV 或 TÜV 的第三方检验。定制牌号和尺寸组合可按订单生产,最短交货期为 15–25 个工作日。

关键建筑应用

碳钢管几乎在建筑行业的每个细分领域都有广泛应用。其高抗拉强度、可焊性和具有成本效益的钢厂直销价格的组合,使其成为兼顾预算和性能要求的工程师和承包商的首选:

用于建筑应用的碳钢管制造商

  • 结构柱和梁:空心截面碳钢管(CHS/RHS)在钢框架建筑和桥梁中提供卓越的承载能力。
  • 地下公用设施管道:Schedule 40 和 Schedule 80 ERW 管在建筑工地下方的供水、排水和燃气分配网络中发挥关键作用。
  • 灭火系统:ASTM A53 Gr. B 黑钢管是 NFPA 13 规定的喷淋和立管系统的行业标准规格。
  • 脚手架和临时结构:外径 48.3 mm 的轻质 ERW 管符合 EN 39 和 BS 1139 脚手架标准。
  • 桩基:大口径 SAW 管在复杂土壤条件下的深基础系统中提供所需的轴向荷载传递和可打桩性。
  • 暖通空调和机械系统:无缝碳钢管在商业建筑中处理高温高压供暖/制冷介质的分配。

获取建筑用碳钢管的竞争力报价

与了解建筑项目对精度和可靠性要求的钢厂直供供应商合作。我们提供经过认证的建筑用碳钢管,附带完整文件资料、灵活的订单数量以及快速的全球物流——确保您的项目时间表按计划推进且不超预算。立即分享您的规格要求,24小时内即可收到详细报价。

  • 提供24/7客户支持
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  • 批量订单享竞争力价格
  • 专业技术咨询

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建筑用碳钢管应用批发

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
Nathan C.
Australia
2025-01-28
Quality acceptable, initial shipment had a sizing discrepancy — supplier resolved it
We ordered 8 tons of ASTM A106 Gr. B seamless pipe in 2-inch SCH 80 for mechanical services on a commercial building project in Brisbane. On arrival, approximately 15% of the pipe lengths measured slightly outside the stated wall thickness tolerance per ASTM A106 — closer to the lower end. We raised this with the account manager and provided measurement records. The supplier acknowledged the variance, arranged a replacement batch within 14 business days, and covered the additional freight cost. The replacement material was fully compliant. Situation was handled professionally, but the initial QC miss cost us schedule time.
用户
Klaus B.
Germany
2025-02-19
EN 10210 structural pipe — competitive on price, delivery met our construction window
Sourced 22 tons of hot-finished structural hollow section pipe to EN 10210-1, S355J2H grade, in 219.1 mm and 168.3 mm OD for steel column fabrication at an industrial facility near Düsseldorf. Mill certificates were complete and TÜV-verifiable. Delivery took 19 business days to Hamburg port, which fit our fabrication shop schedule. Price per tonne was approximately 6% lower than our German steel service center quote for the same specification. Slight variation in surface finish between two batches was noted but did not affect structural performance. Overall a cost-effective source for EN-standard pipe.
用户
Oliver H.
United Kingdom
2025-03-13
Good value on BS 1387 scaffolding pipe — minor documentation delay but resolved
Ordered 12 tons of 48.3 mm OD ERW scaffolding pipe to BS 1387 and EN 39 for a temporary works package on a residential development in Manchester. Pipe quality was solid — wall thickness consistent, welds clean, no visible surface defects. The EN 10204 2.2 certificates were slightly delayed compared to the physical shipment, which caused a brief hold-up on our site inspection. The supplier's documentation team resolved this within 48 hours. Pricing was roughly 8% below our previous distributor for equivalent spec. Would order again with a note to confirm document timeline upfront.
用户
Daniel W.
United States
2025-04-04
Third order placed — consistent quality keeps us coming back for structural CHS pipe
This is our third procurement cycle with this supplier, covering circular hollow section carbon steel pipes for steel frame construction across multiple commercial projects in Texas. We typically order 30–50 tons per cycle in various OD sizes from 88.9 mm to 273 mm, ASTM A53 Gr. B, plain end finish. What keeps us returning is the consistency: MTRs always match, dimensions are within tolerance, and the logistics coordinator proactively updates us on shipping status. Pricing for bulk orders remains competitive and has not fluctuated unreasonably. No plans to change suppliers.
用户
Fatima Al-Mansoori
UAE
2025-04-26
Reliable mill-direct supply for underground utility conduit project in Dubai
We required Schedule 80 ERW carbon steel pipe in 3-inch and 6-inch OD for underground gas distribution conduits across a mixed-use development in Dubai South. The supplier arranged SGS third-party inspection at the mill before shipment, which satisfied our client's QA requirements without any back-and-forth. 28 tons delivered in two partial shipments to meet our phased installation schedule. Epoxy-coated finish was uniform and well-applied. Pricing was noticeably more competitive than our previous local distributor. Customer support was responsive across time zones.
用户
James R.
United Kingdom
2025-05-18
Large-diameter SAW pipe for piling — quality held up under driving conditions
Procured 65 tons of SAW carbon steel pipe, 610 mm OD with 12.7 mm wall thickness, for deep foundation piling on a coastal infrastructure project in Aberdeen. Soil conditions were challenging — dense clay with groundwater — and the pipe performed without deformation throughout the driving process. API 5L and EN 10210 dual certification was a requirement from our structural engineer, and the supplier delivered full documentation. Lead time was 22 business days for this custom dimension, which was within acceptable range for our programme.
用户
Priya S.
India
2025-06-09
Seamless carbon steel pipe for HVAC — technical team knew exactly what we needed
Sourced ASTM A106 Gr. B seamless pipes in SCH 80, ranging from 2-inch to 6-inch OD, for high-temperature heating medium distribution across a 45,000 sqm commercial complex in Pune. The technical consultation team helped us confirm wall thickness selection against our operating pressure of 12.5 MPa. Dimensional accuracy was consistent across all 240 pipe lengths. Hydrostatic test certificates were included without extra charge. Response time on technical queries was under 4 hours. Genuinely impressed by the mill-direct knowledge level.
用户
Marcus T.
United States
2025-06-24
ASTM A53 Gr. B pipe delivered on spec — exactly what our fire suppression contractor needed
We ordered 18 tons of ASTM A53 Grade B black steel pipe in Schedule 40, 4-inch OD, for a commercial high-rise sprinkler system per NFPA 13 requirements. Mill Test Reports arrived with the shipment and matched every chemistry and tensile value we specified — 415 MPa tensile, 240 MPa yield. Delivery to our Chicago warehouse took 12 business days, ahead of the quoted lead time. The EN 10204 3.1 certificates saved us significant time during third-party inspection. Will be placing repeat orders for our Q3 pipeline.

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.

Product inventory

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可定制 超低价
$620 1-49 吨 基准价
$593 50-99 吨 4.4% 优惠
$579 ≥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$ 620.00
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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