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Q235扁钢 - GB标准钢厂直供厂家供应商

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
$480 1-49 吨 基准价
$459 50-99 吨 4.4% 优惠
$448 ≥100 吨 6.7% 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$ 480.00
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

Q235扁钢技术规格

属性参数描述
产品名称Q235 扁钢由 Q235 碳素结构钢制成的热轧扁钢
材料牌号Q235 (Q235A / Q235B)相当于 ASTM A36、EN S235JR、JIS SS400
标准符合性GB/T 702、GB/T 700同时符合 ASTM A36/A36M、EN 10058、JIS G3194
碳 (C)≤ 0.22%依据 GB/T 700 对 Q235B 牌号的规定
锰 (Mn)0.30% – 0.70%确保足够的强度和韧性
硅 (Si)≤ 0.35%按标准规范要求的脱氧元素
磷 (P)≤ 0.045%控制以保持可焊性
硫 (S)≤ 0.045%控制以防止热脆性
抗拉强度370 – 500 MPa依据 GB/T 700 标准要求
屈服强度≥ 235 MPa (t ≤ 16 mm)依据 GB/T 700 随厚度增加而降低
伸长率≥ 26%在 5.65√So 标距长度上测量
厚度范围3 mm – 60 mm可根据要求提供定制厚度
宽度范围10 mm – 200 mm供应标准和非常规宽度
长度范围6 m – 12 m可提供定尺切割服务
表面处理热轧 / 酸洗 / 镀锌根据客户要求提供氧化皮表面或清理后的表面
应用建筑、机械、桥梁、框架广泛用于结构制造、围栏和通用工程
认证ISO 9001、SGS、工厂测试证书 (EN 10204 3.1)可根据要求提供第三方检验
包装钢带捆扎,防水纸包裹适航出口包装,带标签和标记

Q235扁钢 - GB标准钢厂直供厂家

Q235扁钢是全球建筑、制造和通用加工市场中消费量最大的结构钢型材之一。根据中国国家标准GB/T 700定义,Q235牌号代表一种可靠的碳素结构钢,最小屈服强度为235 MPa,使其成为经济高效结构应用的首选材料。作为钢厂直供工厂供应商,我们提供优质Q235扁钢,附带完整的材质证明书(MTC)、一致的尺寸精度以及针对国内外买家量身定制的有竞争力的价格。无论您需要标准库存尺寸还是定制切割长度,我们的生产能力和质量管理体系确保每一批货物按时满足您的项目规格。

Q235扁钢供应商

什么是Q235扁钢?

Q235扁钢是一种热轧矩形截面钢棒,按照GB/T 700和GB/T 702标准由Q235牌号低碳结构钢生产。"Q"代表屈服点(屈服点),而"235"表示厚度≤16 mm时的最小屈服强度为235 MPa。该扁钢产品在钢结构制造、框架建筑、机械底座、桥梁构件、围栏栏杆和通用焊接应用中发挥着关键作用。其优异的焊接性、可靠的成形性和经济高效的特点使Q235扁钢成为建筑和制造业的基础材料。

Q235扁钢技术规格

在为您的项目指定Q235扁钢时,了解精确的技术参数至关重要。以下是符合中国GB标准的关键数据点:

  • 标准: GB/T 700(材料牌号),GB/T 702(扁钢尺寸)
  • 化学成分: C ≤ 0.22%,Mn ≤ 1.40%,Si ≤ 0.35%,S ≤ 0.045%,P ≤ 0.045%
  • 屈服强度: ≥235 MPa(厚度 ≤16 mm),≥225 MPa(16–40 mm),≥215 MPa(40–60 mm)
  • 抗拉强度: 370–500 MPa
  • 伸长率(A₅): ≥26%(保证可靠的延展性)
  • 密度: 20°C 时为 7.85 g/cm³
  • 宽度范围: 10 mm – 200 mm
  • 厚度范围: 3 mm – 60 mm
  • 长度: 6 m、9 m、12 m 标准长度,或按需定尺切割
  • 表面处理: 热轧轧制表面,可应要求提供酸洗涂油

Q235 扁钢等同于或可媲美国际牌号,包括 SS400(JIS G3101)、S235JR(EN 10025)、A36(ASTM A36)和 RSt37-2(DIN 17100),可为出口项目实现无缝的跨标准替代。

Q235 扁钢制造商

Q235 扁钢的主要优势

选择 Q235 牌号扁钢可带来多项可衡量的优势。其低碳含量(≤0.22%)提供卓越的焊接性,无需预热,减少制造时间和人工成本。均衡的锰含量确保承重结构具有足够的强度重量比性能,同时保持出色的冷弯能力——Q235B 牌号在 d=a(其中 a 等于试样厚度)条件下通过 180° 冷弯试验。此外,钢厂直采消除了中间商加价,提供具有成本效益的采购,并实现从炼钢到最终交付的全程可追溯性。

Q235 扁钢工厂

获取Q235扁钢的竞争力报价

与我们工厂合作,以钢厂直销价格获得可靠的Q235扁钢供应。我们支持从单捆到整柜的灵活起订量,并提供出口标准包装,包括捆扎、防锈涂层和钢带加固,确保海运安全。

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

立即联系我们,24小时内获取免费报价!

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
Emma Whitfield
United Kingdom
2025-01-28
Some Surface Rust on Arrival — Resolved Satisfactorily
Ordered 12 tons of Q235 flat steel, 100mm x 15mm, for fence railing fabrication. When the shipment arrived at Felixstowe, about 10% of the bars had light surface rust beyond normal mill scale — likely from moisture during the longer-than-expected 42-day transit. I raised the issue and their team responded within 24 hours, offering a partial credit and arranging anti-rust oil treatment on all future orders at no extra charge. The steel itself tested fine mechanically. Issue resolved, but first impression could have been better.
用户
Michael Patterson
United States
2025-02-19
Decent Price-to-Quality Ratio for A36 Equivalent Needs
We brought in 35 tons of Q235 flat steel as an A36 equivalent for light structural work and welding fixtures. The price was hard to beat for the quality delivered — tensile strength tested at 425 MPa on our end, right in the 370–500 MPa spec window. Width and thickness tolerances were acceptable. Shipping took about 38 days to Long Beach, slightly longer than quoted but nothing critical. For the cost savings versus domestic A36 flat bar, it's a solid option. Will likely reorder with a slightly longer lead time buffer.
用户
David Thornton
Australia
2025-03-13
Good Value — Minor Labeling Issue But Solid Product
Ordered 18 tons of Q235 flat bar, 60mm x 6mm in 6m lengths, for general fabrication work. Product quality was good — we tested elongation at 28%, exceeding the 26% minimum. Mill-direct pricing saved us roughly 12% compared to local distributors. One minor issue: some bundle tags were smudged during transit, making heat numbers hard to read. Their team promptly sent scanned copies of all MTCs to resolve traceability. Would order again but hope labeling is more durable next time.
用户
Ahmed Al-Rashidi
UAE
2025-04-04
Strong Technical Support and Transparent Pricing
Procured 60 tons of Q235 flat steel bars in various widths from 40mm to 150mm for a construction project in Abu Dhabi. Their team provided yield strength data broken down by thickness range, which helped our engineers verify load calculations. The pickled and oiled surface finish option was a great add-on for our humid climate. Full container load pricing was very competitive compared to three other suppliers we quoted. Documentation including MTC and packing list was thorough and customs clearance went smoothly.
用户
Thomas Brandt
Germany
2025-04-26
Reliable Repeat Supplier — Third Order This Year
This is our third purchase of Q235 flat steel this year, totaling over 120 tons. We use it as an RSt37-2 equivalent for general structural welding and fence railing production. Consistency across batches has been remarkable — tensile strength readings have stayed in the 410–450 MPa range every time. Packaging with steel strip reinforcement holds up well during ocean transit. They've earned our trust as a primary flat bar supplier. Already locked in pricing for our Q4 requirements.
用户
Rajesh Patel
India
2025-05-28
Perfect Cold Bending Performance for Machinery Bases
We sourced 25 tons of Q235 flat steel — mainly 50mm x 8mm and 80mm x 12mm profiles — for machinery base plates and support brackets. The cold bending performance was outstanding, passed our 180° bend tests without any cracking. Chemical composition on the MTC showed carbon at 0.18%, well within spec. What impressed me most was the MOQ flexibility — they accommodated our mixed-size order in a single container. Competitive CIF pricing to Nhava Sheva port. Highly recommend for fabrication-grade flat bar.
用户
Sarah Mitchell
United Kingdom
2025-06-20
Excellent Service and Fast Technical Response
Needed Q235B flat steel as a substitute for S235JR on a bridge railing project. Their technical team confirmed the equivalency with EN 10025 and provided a detailed comparison chart within hours. Ordered 30mm x 200mm bars cut to 9m lengths — everything arrived properly bundled with anti-rust coating intact. The sales team was responsive around the clock despite the time zone difference. Free samples they sent beforehand matched the bulk shipment perfectly. Very professional operation from quote to delivery.
用户
James Crawford
United States
2025-07-05
Consistent Quality on Q235 Flat Bars for Structural Frames
We ordered 45 tons of Q235 flat steel in 100mm x 10mm and 150mm x 20mm sizes for warehouse frame fabrication. Every bundle came with full MTC referencing GB/T 700 and the dimensional tolerances were spot-on per GB/T 702. Weldability was excellent — no preheating needed, which saved us significant labor hours. The mill-direct pricing was noticeably lower than what we'd been paying through trading companies. Delivery to Houston port took 32 days, well within the quoted timeframe. Already planning our next order for Q3.

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
$480 1-49 吨 基准价
$459 50-99 吨 4.4% 优惠
$448 ≥100 吨 6.7% 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$ 480.00
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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