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方形钢制造商 - 钢厂直销出厂价 | ASTM

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
$520 1-49 吨 基准价
$497 50-99 吨 4.4% 优惠
$486 ≥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$ 520.00
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

产品详情

方形钢的技术规格

属性参数描述
产品名称方钢 / 方钢坯热轧或冷拔实心方钢型材
材质牌号Q235B / SS400 / A36 / S235JR / Q345B / S355JR对应牌号:ASTM A36、EN 10025 S235JR/S355JR、JIS SS400、GB/T 700 Q235B
标准符合性ASTM A36/A615、EN 10025、JIS G3101、GB/T 700、GB/T 1591结构用方钢的国际标准和中国国家标准
碳含量 (C)≤ 0.20% (Q235B) / ≤ 0.26% (A36)控制碳含量以保证焊接性和成形性
锰含量 (Mn)0.30% – 1.60%因牌号而异;提高强度和韧性
硅含量 (Si)≤ 0.35%脱氧剂;提高强度
磷和硫 (P/S)P ≤ 0.045%,S ≤ 0.045%限制含量以确保延展性和焊接性
抗拉强度370 – 630 MPaQ235B:370–500 MPa;Q345B:470–630 MPa,依据 GB/T 700 和 GB/T 1591
屈服强度235 – 355 MPaQ235B:≥ 235 MPa;Q345B:≥ 345 MPa(厚度 ≤ 16 mm)
伸长率≥ 20% – 26%Q235B:≥ 26%;Q345B:≥ 20%(标距 5.65√So)
尺寸范围8 mm × 8 mm – 250 mm × 250 mm边长可定制;长度 6 m、9 m、12 m 或按需定制
尺寸公差边长:±0.5 – ±2.0 mm;长度:+50 / 0 mm依据 GB/T 702 或 ASTM A6/A6M 公差标准
表面处理黑材(热轧)/ 光亮(冷拔)/ 剥皮 / 抛光可选防锈油涂层或镀锌处理
加工方式热轧 / 冷拔 / 锻造标准尺寸采用热轧;精密应用采用冷拔
应用建筑、机械、汽车、造船、桥梁结构框架、轴类、支撑件及通用制造
认证ISO 9001、SGS、BV、工厂测试证书(EN 10204 3.1)可提供第三方检验和材料可追溯性
包装钢带捆扎,防水纸或编织布包裹适合海运的包装;标注炉号和牌号
最小起订量5 公吨特殊牌号或尺寸的小批量订单可协商

方钢制造商 - 钢厂直销出厂价 | ASTM

选择合适的方钢制造商是一项关键决策,直接影响项目质量、预算效率和长期结构性能。随着全球基础设施建设加速,建筑、机械工程和工业制造领域对精密工程方钢棒和方坯的需求持续激增。可靠的方钢制造商提供的不仅仅是原材料——他们提供一致的冶金质量、严格公差范围内的尺寸精度,以及确保您的项目按期推进的供应链可靠性。无论您需要用于结构框架的热轧方钢棒、用于精密加工的冷拔方钢,还是用于重型应用的锻造方坯,与钢厂直营工厂合作都能确保您以高性价比的价格获得优质产品。我们的工厂集成了先进的连铸、控制轧制和严格的在线检测系统,生产符合 ASTM A36、ASTM A615、ASTM A276 和 GB/T 702 标准的方钢。凭借年产能超过 500,000 公吨以及覆盖 60 多个国家的出口经验,我们是您值得信赖的方钢供应商,致力于工程卓越和客户满意。

中国方钢供应商

什么是方钢?

方钢是指横截面为正方形的实心钢棒或钢坯,通过热轧、冷拔或锻造工艺制造。与空心方管不同,实心方钢具有更优越的承载能力和可加工性。它广泛应用于结构柱、机器轴、轴坯、地脚螺栓和通用制造部件。方钢提供碳钢牌号(Q235、Q345、AISI 1045)、合金钢牌号(4140、4340)和不锈钢牌号(304、316),在建筑、汽车制造、造船和农业设备生产中发挥着关键作用。

方钢厂批发

方钢技术规格

我们的方钢产品按照精确的尺寸和力学标准制造,确保在严苛应用中具有可靠的性能。以下是我们生产线可提供的关键技术参数:

参数规格范围
边长8 mm × 8 mm 至 250 mm × 250 mm
长度3 m – 12 m(可定制长度)
钢种Q235B、Q345B、ASTM A36、AISI 1045、SS 304/316
屈服强度(Q345B)≥ 345 MPa,符合 GB/T 1591
抗拉强度(A36)400–550 MPa,符合 ASTM A36
尺寸公差± 0.5 mm(热轧)/ ± 0.1 mm(冷拔)
表面处理黑皮、剥皮、磨光或抛光
碳含量(A36)≤ 0.26%,符合 ASTM 规范
密度20°C 时为 7.85 g/cm³(碳钢)

每一生产批次均通过光电发射光谱法进行化学成分分析,并进行包括拉伸和夏比冲击试验在内的力学测试,以及超声波探伤,以确保内部质量完好。每批货物均随附符合 EN 10204 3.1 标准的工厂测试证书(MTC)。

为什么选择我们的方钢制造工厂?

作为一家垂直整合的方钢制造商,我们控制从炼钢到最终检验的每一个环节。我们的电弧炉和连铸生产线生产的钢坯化学成分均匀一致,而我们的高速轧机实现的尺寸精度可降低您的下游加工成本。我们持有 ISO 9001:2015 和 ISO 14001 认证,我们的产品带有 CE 标志,符合欧洲市场要求。凭借战略布局的仓库和与主要航运公司的合作关系,我们保证标准订单的交货周期为 15–25 天,紧急需求可加急至 7 天发货。

获取方钢有竞争力的报价

与一家成熟的方钢制造商合作,享受钢厂直销工厂价格,无中间商加价。我们敬业的销售工程师根据您的确切牌号、尺寸和数量需求提供定制解决方案——确保每一笔订单实现最大价值。

  • 提供 24/7 客户支持
  • 免费样品供质量评估
  • 批量订单有竞争力的价格
  • 专业的技术咨询

立即联系我们,24 小时内获取免费报价!

方钢出口商价格

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
Michael Torres
United States
2025-02-11
Initial Shipping Delay Resolved — Product Quality Was Fine
Ordered 60 tons of ASTM A36 square steel, 32mm × 32mm × 9m custom lengths, for a client's commercial construction project in California. The product itself was good — tensile at 445 MPa, clean mill finish, accurate MTCs. However, our shipment was delayed by 10 days beyond the original 20-day lead time due to a booking issue with the shipping line. It caused scheduling problems on our end. To their credit, the sales manager escalated immediately, arranged partial air freight for the most urgent 8 tons at no extra cost, and the remainder followed by sea. Issue resolved, but communication about the delay could have come sooner.
用户
David Thornton
United Kingdom
2025-03-14
Competitive Bulk Pricing on Square Bars for General Fabrication
We placed a bulk order of 90 tons — mixed sizes of Q235B square bars from 16mm to 75mm, standard 6m lengths, for general steel fabrication and anchor bolt production. The hot-rolled tolerance of ±0.5mm was met across all sizes we spot-checked. Pricing was very competitive for the volume, and the tiered discount structure they offered made the deal worthwhile. Delivery to Felixstowe took 24 days, slightly longer than quoted but still acceptable. Solid product for the price point. CE marking documentation was in order for our UK compliance requirements.
用户
Thomas Brenner
Germany
2025-04-05
Good Value for 4140 Alloy Square Bars — Minor Packaging Issue
Ordered 30 tons of 4140 alloy square steel, 60mm × 60mm, peeled surface finish, for machining hydraulic cylinder components. Material quality was solid — Charpy impact values and tensile properties met our internal specs aligned with EN standards. Price was approximately 12% below what we'd pay from European mills for equivalent grade. One minor issue: some bundles had insufficient protective wrapping, causing light surface oxidation on a few bars. Reported it to the sales team, and they credited us promptly. Would order again with a note to reinforce packaging.
用户
Ahmed Al-Rashidi
UAE
2025-04-28
Third Order This Year — Consistently Reliable Quality
This is our third purchase in 2025 — totaling around 350 tons of square steel across Q235B and Q345B grades, sizes ranging from 20mm to 100mm. Every shipment to Jebel Ali has been on time and fully compliant with the MTCs provided. We distribute to contractors across the UAE and Oman, and we've had zero complaints or returns. The consistency batch after batch is what keeps us coming back. They understand the Gulf market requirements well and always bundle documentation correctly for customs clearance.
用户
Sarah Mitchell
Australia
2025-05-10
Responsive Support Team and Fast Sample Delivery
Before committing to a 75-ton order of A36 square bars (40mm × 40mm), we requested free samples for evaluation. Samples arrived in Melbourne within 6 days — impressive turnaround. Our QA team confirmed the carbon content at 0.24%, within the ≤0.26% ASTM specification. After approving, the full order shipped and cleared customs in exactly 25 days. Their 24/7 support team answered every technical question promptly, even across time zones. We've now designated them as our preferred square steel supplier for upcoming infrastructure projects.
用户
Priya Venkatesh
India
2025-06-01
Q345B Square Billets Perfect for Our Forging Line
We sourced 200 tons of Q345B square billets, 150mm × 150mm, for our hot forging production line manufacturing agricultural equipment components. Yield strength exceeded 345 MPa per GB/T 1591, and the ultrasonic flaw detection reports confirmed zero internal defects. Chemical homogeneity was outstanding — our spectrometry checks on random samples showed carbon and manganese content perfectly consistent across the entire batch. Shipment to Nhava Sheva port arrived in 19 days. Highly dependable supplier.
用户
Robert Harmon
United States
2025-06-24
Mill-Direct Pricing Saved Us Significantly on A36 Square Bars
Purchased 120 tons of ASTM A36 hot-rolled square steel, 50mm × 50mm × 6m lengths, for structural column fabrication across three warehouse projects in Texas. Tensile strength tested at 430 MPa — well within the 400–550 MPa spec range. The black surface finish was clean and consistent, minimal scale. Compared to our previous domestic supplier, we saved roughly 18% per ton going mill-direct. Their sales engineer helped us optimize the cutting lengths to reduce waste. Very professional operation.
用户
James Crawford
United Kingdom
2025-07-09
Excellent Dimensional Accuracy on Cold-Drawn Square Bars
We ordered 45 metric tons of cold-drawn square steel bars, 25mm × 25mm in AISI 1045, for CNC machining of precision shaft components. The dimensional tolerance was consistently within ±0.1mm as promised — our machine shop reported virtually zero rejection rate. MTC per EN 10204 3.1 was included and matched our independent lab verification. Delivery to Southampton took 22 days. Already planning our Q4 repeat order. This manufacturer genuinely understands the needs of precision engineering customers.

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 square steel?
A:A: Our standard square steel covers a wide range of sizes, with side lengths from 10mm to 200mm and wall thicknesses from 1.5mm to 20mm. Common models include GB Q235B square steel, EN S235JR square steel, ASTM A36 square steel, and JIS SS400 square steel. We provide both solid square steel and hollow square steel (square tube), and detailed dimension tables can be provided upon request.
Q: Q: What materials are your square steel products made of?
Q: Q: Can you customize square steel with non-standard sizes?
Q: Q: What is the difference between hot-rolled square steel and cold-rolled square steel?
Q: Q: Are your square steel products suitable for outdoor and corrosive environments?
Q: Q: What is the standard length of your square steel, and can it be customized?
可定制 超低价
$520 1-49 吨 基准价
$497 50-99 吨 4.4% 优惠
$486 ≥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$ 520.00
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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