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Q235碳钢棒 - 热轧低碳钢圆棒方棒扁钢

山东快马钢铁有限公司
已认证 定制生产厂家 · 7 年 · 中国 China
可定制 超低价
$545 1-49 吨 基准价
$520 50-99 吨 4.6% 优惠
$510 ≥100 吨 6.4% 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$ 545.00
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碳钢棒材技术规范

属性参数描述
产品名称Q235 碳钢棒材用于一般建筑的低碳结构钢棒材
材料牌号Q235 / ASTM A36 / EN S235JR / JIS SS400国际牌号对应
标准符合性GB/T 700, ASTM A36, EN 10025-2, JIS G3101符合主要国际标准
碳 (C)≤0.22%碳含量影响强度和焊接性
锰 (Mn)0.30-0.70%提高淬透性和强度
硅 (Si)≤0.35%脱氧剂和强化剂
磷 (P)≤0.045%控制以保证延展性
硫 (S)≤0.050%低硫以保证焊接性
抗拉强度370-500 MPa按 GB/T 700 的最小抗拉强度
屈服强度≥235 MPa最小屈服强度
伸长率≥26%50mm 标距内的延展性
直径范围6mm - 300mm可提供的圆钢直径选项
长度6m - 12m 或定制标准长度和定制长度
表面处理黑皮、剥皮、抛光多种表面处理选项
应用建筑、机械、桥梁、焊接结构典型应用行业
认证ISO 9001, EN 10204 3.1, 材质证明书提供的质量认证
包装钢带捆扎,防水覆盖标准出口包装
MOQ5 吨最小起订量

Q235碳钢棒材 - 热轧低碳钢圆棒方棒扁棒

Q235碳钢棒材是全球建筑和制造业中应用最广泛的结构钢种之一。这种多用途低碳钢材料具有卓越的机械强度以及优异的焊接性能,使其成为基础设施项目、机械制造和通用工程应用的首选。Q235碳钢棒材按照中国GB/T 700-2006标准规范制造,在建筑框架、汽车零部件和工业设备中发挥着关键作用,在可靠性能与经济高效的材料解决方案之间实现了完美平衡。

Q235碳钢棒材供应商

什么是Q235碳钢棒材?

Q235碳钢棒材是一种低碳结构钢材料,最低屈服强度为235 MPa,以其均衡的化学成分和优异的成形性为特征。牌号中的“Q”代表屈服强度(屈服点),而“235”表示以兆帕为单位的最低屈服值,确保在圆钢、方钢、扁钢和六角钢等各种截面型材中具有一致的力学性能。

Q235碳钢棒材技术规格

该低碳钢种符合GB/T 700-2006要求,碳含量在0.14-0.22%之间,锰0.30-0.65%,硅≤0.30%,磷≤0.045%,硫≤0.050%。该材料的抗拉强度范围为375-500 MPa,厚度≤16mm时断后伸长率≥26%,环境温度下密度为7.85 g/cm³,为各类工程应用提供稳固的结构完整性。

Q235碳钢棒材批发

制造工艺与质量控制

我们的 Q235 碳钢棒材在 1150-1200°C 的温度下进行热轧工艺,随后进行控制冷却,以获得最佳的晶粒结构和力学性能。每个生产批次都经过全面检测,包括按 GB/T 223 标准进行的化学成分分析、按 GB/T 228.1 进行的拉伸试验,以及确保直径规格在 ±0.5mm 公差范围内合规的尺寸验证。

跨行业应用

Q235 碳钢棒材广泛应用于建筑框架、桥梁构件、铁路基础设施、农业机械、汽车底盘部件及一般制造工程。该材料优异的焊接性能和可加工性使其特别适用于需要频繁连接操作的项目,同时其具有成本效益的价格结构支持大规模基础设施建设和批量生产需求。

为什么选择我们的 Q235 碳钢棒材

我们维持钢厂直供渠道,确保工厂竞争性定价且无中间商加价,同时我们通过 ISO 9001:2015 认证的生产设施保证一致的质量合规性。每批货物均附有记录化学成分和力学性能的材料测试证书,并可根据要求提供 SGS、BV 或 TÜV 的第三方检验服务,提供完整的可追溯性和质量保证。

常见问题

最小起订量(MOQ)是多少?

我们的标准最小起订量为每规格 5 公吨起,但对于建立质量验证的新客户,我们也可承接 1-2 吨的较小试订单。对于组合不同型材或尺寸的订单,可提供混合集装箱装载,在满足多样化项目需求的同时优化运输效率。

Q235碳钢棒 中国

你们提供材料测试证书吗?

是的,我们每次发货都随附符合 EN 10204 3.1 标准的全面工厂测试证书(MTC),记录炉号可追溯性、化学成分分析、力学性能测试结果以及尺寸检验数据。也可按具有竞争力的补充费率安排国际公认机构的第三方认证。

典型的交货时间是多久?

标准库存规格在订单确认后 7-10 个工作日内发货,而定制尺寸或特殊长度要求通常需要 15-25 天的生产周期。紧急项目可提供加急加工服务,加急生产排程可将交货时间缩短约 30-40%,具体取决于当前产能。

你们能按定制尺寸切割吗?

我们的精密切割服务可满足 1000mm 至 12000mm 的定制长度规格,公差为 ±5mm,采用先进锯切设备,确保切口端面平整并最大限度减少材料浪费。附加加工能力包括表面磨削、倒角和钻孔操作,提供可直接安装的部件,减少现场加工需求并加快项目进度。

获取 Q235 碳钢棒的竞争力报价

立即联系我们的技术销售团队,获取根据您具体项目需求定制的详细报价,包括基于数量的定价结构、定制选项和物流解决方案。我们经验丰富的工程师提供全面的材料选择指导,确保为您的应用选择最佳牌号规格,同时在整个供应链运营中最大化成本效益和性能可靠性。

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
Chris Martin
Canada
2025-08-31
Perfect Solution for Mining Equipment Fabrication
Supplied 14 tons of Q235 round and hexagonal bars for mining equipment production in Alberta. Custom length cutting to 3500mm and 4200mm executed with precision tolerance of ±4mm. Density measurements confirmed 7.85 g/cm³ standard specification. Material exhibited excellent machinability with tool life 15% better than previous supplier. Technical team provided comprehensive material selection guidance for our specific load-bearing requirements. Lead time was 16 days as promised.
用户
Carlos Silva
Brazil
2025-09-19
Acceptable Quality with Resolved Documentation Delay
Purchased 5 tons of Q235 square bars (50x50mm, length 5000mm) for general fabrication. Material quality met specifications with carbon at 0.19% and manganese at 0.52%. Initial shipment arrived without complete mill certificates causing customs clearance delay of 4 days. Supplier quickly sent certified documents via courier and provided partial compensation for demurrage costs. Product itself performed well in welding and machining operations once received.
用户
William Taylor
Australia
2025-10-08
Solid Performance for Shipyard Equipment
Ordered 7 tons of Q235 flat bars (thickness 8mm, width 100mm) for shipyard lifting equipment. Compared quotes from 4 suppliers and this offered best combination of price and certification. TÜV inspection confirmed mechanical properties. Surface finish had minor rust spots on 2 bars but within acceptable commercial standards. Welding characteristics were good with proper preheat procedures. Delivery took 18 days, slightly longer than quoted 15 days.
用户
Ahmed Al-Hassan
UAE
2025-10-30
Reliable Partner for Infrastructure Projects
This is our fourth order totaling 45 tons of Q235 carbon steel bars for building frameworks in Dubai. Consistent quality across all shipments with yield strength ranging 248-265 MPa. EN 10204 3.1 certificates provided with complete heat number traceability. Supplier accommodated our mixed container requirements combining round, square, and flat profiles. Payment terms flexible for repeat customers. Highly recommend for large-scale construction applications.
用户
Wei Chen
Singapore
2025-11-20
Premium Quality for Automotive Components
Supplied 10 tons of Q235 round bars (diameter 25mm, 30mm, 35mm mixed sizes) for automotive chassis parts manufacturing. Elongation test results showed 28% for all samples, exceeding minimum 26% requirement. Hot rolling process ensured uniform grain structure verified by metallographic examination. Custom cutting service to 2500mm lengths saved significant processing time. Material performed excellently in cold forming operations without cracking.
用户
Hans Mueller
Germany
2025-12-08
Good Value Q235 Square Bars for Equipment Frames
Purchased 6 tons of Q235 square bars (40x40mm) for industrial equipment frames. Price was 12% lower than European suppliers while maintaining ISO 9001 certification. Material test certificates showed phosphorus at 0.038% and sulfur at 0.042%, well within limits. Machining properties were excellent. Minor packaging issue with one bundle but supplier quickly provided compensation. Overall good value for serial production requirements.
用户
Michael Johnson
United States
2025-12-23
Outstanding Service and Fast Delivery
Needed 8 tons of Q235 flat bars urgently for agricultural machinery production. Sales team responded within 3 hours with detailed quotation including chemical composition analysis. Express processing reduced lead time to just 11 days. SGS third-party inspection arranged at competitive rate. Dimensional tolerances were within ±0.3mm, better than standard specification. Customer service provided real-time shipping updates throughout.
用户
James Wilson
United Kingdom
2026-01-07
Excellent Q235 Round Bars for Bridge Construction
Ordered 12 tons of Q235 round bars (diameter 50mm, length 6000mm) for our railway bridge project in Manchester. Mill test certificates confirmed carbon content at 0.18% and tensile strength of 445 MPa, fully compliant with GB/T 700-2006. Surface quality was outstanding with no scale or cracks. Delivered in 9 days with proper bundling. Welding performance exceeded expectations during fabrication. This is our second order this year.

了解供应商

山东快马钢铁有限公司

入驻 Sinoali.com 7 年

所在地:China

Frequently Asked Questions

可定制 超低价
$545 1-49 吨 基准价
$520 50-99 吨 4.6% 优惠
$510 ≥100 吨 6.4% 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$ 545.00
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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