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高强度扁钢 - ASTM认证钢厂直供

宏基型材有限公司
已认证 定制生产厂家 · 5 年 · 中国 China
可定制 超低价
$580 1-49 吨 基准价
$554 50-99 吨 4.5% 优惠
$542 ≥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$ 580.00
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产品详情

高强度扁钢技术规范

性能参数说明
产品名称高强度扁钢热轧高强度结构扁钢
材质牌号Q460 / S460 / ASTM A572 Gr.50等效牌号:EN S460N、JIS SM490、GB/T Q460C
标准符合性ASTM A572、EN 10025-3、GB/T 1591适用于高强度应用的国际结构钢标准
碳(C)≤ 0.20%控制碳含量以保证焊接性和韧性
锰(Mn)≤ 1.70%提高强度和淬透性
硅(Si)≤ 0.60%脱氧剂,提高强度
磷(P)≤ 0.025%限制含量以确保延展性和韧性
硫(S)≤ 0.020%低硫含量以提高抗冲击性
钒(V)/ 铌(Nb)V ≤ 0.20% / Nb ≤ 0.05%微合金元素,用于晶粒细化和沉淀强化
抗拉强度550 - 720 MPa符合 ASTM A572 Gr.50 / EN 10025-3 S460N 要求
屈服强度≥ 460 MPa最低屈服点,确保结构承载能力
延伸率≥ 17%按标准试验方法在 200 mm 标距上测量
厚度范围5 - 80 mm厚度可定制,以满足项目规格要求
宽度范围40 - 600 mm提供标准宽度和定制宽度
长度范围6,000 - 12,000 mm可按需提供定尺切割服务
表面处理热轧 / 喷丸 / 涂装可选防腐底漆涂层(SA 2.5 喷砂清理)
应用桥梁、建筑、重型机械、起重机臂、海上结构非常适合需要高比强度的承重部件
认证ISO 9001, EN 10204 3.1 MTC, SGS, BV每批货物随附工厂测试证书
包装钢带捆扎,防水纸包裹适合海运的出口包装,带标识标签
MOQ5 Metric Tons试订单可协商更小数量

高强度扁钢 - ASTM认证钢厂直供

高强度扁钢在现代结构工程、重型机械制造和基础设施建设中发挥着关键作用,在这些领域,卓越的承载能力和尺寸精度是必不可少的。作为拥有ASTM认证生产线的钢厂直供供应商,我们提供优质等级的扁钢产品,专为满足桥梁建设、汽车底盘制造、采矿设备和高层建筑框架等行业最严苛的机械要求而设计。我们的高强度扁钢库存涵盖全面的牌号、尺寸和表面处理——全部附有完整的钢厂测试证书和第三方检验报告,确保从冶炼到交付的质量一致性和完全可追溯性。

什么是高强度扁钢?

高强度扁钢是一种具有矩形截面的热轧或冷加工钢材,由低合金或微合金钢种制造,与标准低碳钢相比,具有显著提高的屈服强度和抗拉强度。典型牌号包括ASTM A572 Grade 50、S355J2和Q460C,最低屈服强度范围为345 MPa至460 MPa。这种扁钢型材将结构刚性与高效材料利用相结合,使工程师能够在不影响承载性能的情况下将部件整体重量减少15%–30%——这在起重机臂架、拖车车架和海上平台甲板等对重量敏感的应用中具有决定性优势。

高强度扁钢供应商

高强度扁钢技术规格

我们的高强度扁钢产品严格按照ASTM A572/A572M、EN 10025-2和GB/T 1591标准制造。以下是我们生产设施可提供的关键参数:

  • 厚度范围:3 mm – 80 mm
  • 宽度范围:20 mm – 500 mm
  • 长度:6 m、9 m、12 m,或定制定尺切割
  • 屈服强度:345 MPa – 690 MPa(取决于牌号)
  • 抗拉强度:根据适用标准,最低 470 MPa – 830 MPa
  • 伸长率:≥16%(A572 Gr.50,200 mm 标距长度)
  • 表面处理:黑皮、喷丸处理(Sa 2.5),或涂底漆
  • 公差:EN 10058 或 ASTM A484 尺寸公差
  • 冲击韧性:S355J2 牌号在 -20°C 下最低 27 J

每批货物均随附 EN 10204 Type 3.1 钢厂测试证书,记录化学成分、力学性能和尺寸检验结果。常见合金元素包括锰(1.0%–1.65%)、硅(0.15%–0.55%),以及微量添加的钒(≤0.15%)或铌(≤0.05%),以实现晶粒细化和沉淀强化。

高强度扁平钢的应用

这种多用途扁平钢产品广泛应用于需要卓越强度重量比和可靠焊接性的行业。主要应用场景包括商业建筑中的结构柱和梁、重型车辆的板簧坯料、采矿作业中的输送机框架部件,以及风力发电机塔筒基础底板。我们扁平钢的受控碳当量(CE ≤ 0.45)确保出色的现场焊接性,无需强制预热要求,从而减少下游制造商的制造时间和人工成本。

获取高强度扁平钢的竞争性报价

与一家致力于以高性价比的价格和可靠的交期提供经认证的高强度扁钢的钢厂直供供应商合作。无论您需要标准库存尺寸还是定制轧制型材,我们的技术团队随时准备从规格制定到发货为您的项目提供支持。

高强度扁钢制造商

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高强度扁钢工厂

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
Kevin Brandt
United States
2025-01-07
Minor Dimensional Issue Resolved Satisfactorily
Ordered 6 tonnes of S355J2 flat steel, 16mm x 200mm x 9m. About 15% of the pieces had width running slightly over tolerance — measured 202.5mm against the EN 10058 limit. Contacted their support team and they responded within a few hours, offered a credit note and expedited a replacement batch that arrived within 3 weeks. The replacement material was perfect. Mechanical properties on all material were fine. Appreciate that they handled the issue professionally rather than disputing it. Would cautiously reorder with tighter inspection instructions.
用户
Rajesh Patel
India
2025-01-31
Decent Quality at Competitive Pricing for Leaf Spring Blanks
We manufacture leaf springs for heavy commercial vehicles and ordered 35 tonnes of high strength flat steel, 10mm x 70mm, in 50Mn grade equivalent. Mechanical properties were consistent — tensile around 680 MPa, elongation at 17%. Good value compared to domestic mills when factoring in the full traceability documentation. Delivery took about 6 weeks to Mumbai port, which is acceptable but not exceptional. The material performed well in our heat treatment and forming processes. Solid supplier for bulk requirements.
用户
David Hargreaves
United Kingdom
2025-02-21
Good Value for Commercial Building Project
Sourced 18 tonnes of A572 Gr.50 flat steel — mixed sizes from 8mm to 20mm thickness, 80mm to 250mm widths — for structural column base plates on a retail park development. Pricing came in about 12% below our usual UK stockholder for equivalent certified material. Quality was solid, all certs checked out. Only reason for 4 stars instead of 5 is that packaging on one bundle was slightly damaged during transit, though the steel itself was unaffected. Would order again for price-sensitive projects.
用户
Ahmed Al-Rashidi
UAE
2025-03-15
Strong Technical Support and Fast Turnaround
Needed 60mm x 400mm flat steel base plates for a wind turbine foundation project in Ras Al Khaimah — 22 tonnes of S355J2 with carbon equivalent below 0.42. Their team confirmed CE values from the specific heat before we placed the order, which saved us potential welding qualification headaches on site. Material arrived in 4 weeks to Jebel Ali port. Surface was clean black finish, no excessive mill scale. Our QC team verified thickness tolerances within ±0.3mm. Very professional operation.
用户
Sarah Mitchell
Australia
2025-04-06
Weight Savings Made Real on Our Trailer Frames
Switched from standard mild steel flat bar to their A572 Gr.50 high strength flat steel for our heavy-duty trailer chassis. Using 10mm x 120mm sections instead of the old 14mm mild steel — roughly 22% weight reduction per trailer while maintaining the same load rating. Ordered 8 tonnes initially as a trial, now placing our fourth order. The free sample program convinced our engineering team before we committed to volume purchasing. Great decision all around.
用户
Markus Brenner
Germany
2025-04-28
Reliable Supply for Conveyor Frame Manufacturing
We've been manufacturing mining conveyor systems for 20 years and switched to this supplier for our Q460C flat steel requirement — 12mm x 300mm profiles, custom cut to 4.5m lengths. Tensile strength consistently above 550 MPa across three separate shipments totalling 42 tonnes. The vanadium micro-alloying gives us noticeably better fatigue performance in our frame welds compared to our previous supplier's material. EN 10204 Type 3.1 documentation is always complete and arrives before the steel does.
用户
Robert Callahan
United States
2025-05-20
Perfect Flat Bar Stock for Crane Boom Components
Purchased 15 tonnes of S355J2 flat steel in 40mm x 150mm sections for crane boom reinforcement plates. Impact toughness results on the 3.1 cert showed 34J at -20°C, exceeding the 27J minimum — critical for our equipment operating in North Dakota winters. Shot-blasted Sa 2.5 finish saved us a full day of surface prep per batch. The technical team helped us select the right grade after reviewing our load calculations. Genuinely impressed with the consultation support.
用户
James Whitfield
United Kingdom
2025-06-05
Excellent A572 Gr.50 Flat Steel for Bridge Fabrication
We ordered 28 tonnes of ASTM A572 Grade 50 high strength flat steel, 25mm x 200mm x 12m lengths, for a pedestrian bridge project in Manchester. The mill test certificates were thorough — yield strength tested at 382 MPa, well above the 345 MPa minimum. Dimensional tolerances were spot-on per EN 10058. Our welders reported zero issues with weldability, no pre-heat needed. Delivery arrived 3 days ahead of the quoted 5-week lead time. Will definitely be sourcing our next batch from here.

了解供应商

宏基型材有限公司

入驻 Sinoali.com 5 年

所在地:China

Product Introduction

Hongji Profiles Co., Ltd. is a professional manufacturer and supplier specializing in the R&D, production and sales of high-quality steel profiles. With years of experience in the metallurgical industry, we have earned a solid reputation for reliability, precision and customer-centric service, providing global clients with premium steel profile solutions for diverse industrial and architectural needs.

Our core business covers a full range of steel profiles, including angle steel, channel steel, I-beams, H-beams, C-section steel, Z-section steel, flat steel and custom special steel profiles. These products are widely applied in building structures, bridges, transmission towers, industrial machinery, automotive components and shipping. We strictly control material selection, adopting high-quality steel grades such as S235JR, S355JR, SS400, A36 and Q355 series to ensure excellent mechanical properties, durability and corrosion resistance.

Guided by a customer-first philosophy, we have built a comprehensive sales and after-sales network. Our products are exported to Europe, North America, Southeast Asia and Africa, with long-term cooperation with well-known enterprises. Our team provides one-stop services, and we ensure prompt delivery through sufficient inventory and optimized logistics.

Upholding “Quality First, Integrity-based, Innovation-driven, Win-Win Cooperation”, Hongji is committed to becoming a global leader in the steel profile industry, continuously improving quality and service to create a better future with global customers.

 

FAQ

Q: Q: What are the common specifications of your flat steel?
A:A: Our standard flat steel covers a wide range of sizes, with thicknesses from 3mm to 50mm, widths from 20mm to 600mm, and lengths from 6m to 12m. Common models comply with GB, EN, ASTM and JIS standards, including GB Q235B flat steel, EN S235JR flat steel, ASTM A36 flat steel and JIS SS400 flat steel. Detailed dimension tables and specification parameters can be provided upon your request.
Q: Q: What materials are your flat steel products made of?
Q: Q: Do you supply hot-rolled flat steel and cold-rolled flat steel?
Q: Q: Can you customize flat steel with non-standard sizes?
Q: Q: What is the difference between ordinary flat steel and high-strength flat steel?
Q: Q: Are your flat steel products suitable for outdoor and corrosive environments?
可定制 超低价
$580 1-49 吨 基准价
$554 50-99 吨 4.5% 优惠
$542 ≥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$ 580.00
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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