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不锈钢扁钢 - 304/316牌号，精密切割，工厂检测
飞鸿钢铁有限公司
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6 年
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China
China
可定制
超低价
$3275
1-49 吨
基准价
$3130
50-99 吨
4.4% 优惠
$3060
≥100 吨
6.6% 优惠
价格有效期：随行就市
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
不锈钢扁钢技术规格
| 属性 | 参数 | 描述 |
|---|---|---|
| 产品名称 | 不锈钢扁钢 | 用于结构和制造用途的矩形截面奥氏体不锈钢棒材 |
| 常用材料牌号 | 304 / 1.4301, 316 / 1.4401, 316L / 1.4404, 2205 / 1.4462 | 符合 ASTM A276 / EN 10088-3 的国际牌号对应 |
| 标准合规 | ASTM A276, EN 10088-3, JIS G4303, GB/T 1220 | 符合不锈钢棒材的主要全球标准 |
| 碳 (C) | 304: ≤0.08%; 316L: ≤0.03%; 2205: ≤0.03% | 低碳可增强焊接性和抗晶间腐蚀能力 |
| 铬 (Cr) | 304: 18.0–20.0%; 316: 16.0–18.0%; 2205: 22.0–23.0% | 形成钝化膜和耐腐蚀性的主要元素 |
| 镍 (Ni) | 304: 8.0–10.5%; 316: 10.0–14.0%; 2205: 4.5–6.5% | 稳定奥氏体；提高韧性和延展性 |
| 钼 (Mo) | 316/316L: 2.0–3.0%; 2205: 3.0–3.5%; 304: 未规定 | 增强在氯化物环境中的抗点蚀和抗缝隙腐蚀能力 |
| 抗拉强度 | 304: ≥515 MPa; 316: ≥515 MPa; 2205: ≥620 MPa | 按 ASTM A276 规定的最小抗拉强度 |
| 屈服强度（0.2% 偏移） | 304: ≥205 MPa; 316: ≥205 MPa; 2205: ≥450 MPa | 室温下的最小屈服强度 |
| 伸长率 | 304/316: ≥40%; 2205: ≥25% | 以 50 mm 标距长度测量的延展性 |
| 尺寸（宽度 × 厚度） | 10–300 mm × 3–100 mm | 标准热轧和冷加工尺寸；可提供定制规格 |
| 长度 | 3–6 m（标准）；最长 12 m 或定尺切割 | 典型轧制长度，可提供精密切割选项 |
| 表面处理 | No.1（热轧）、2B（冷轧）、BA（光亮退火）、酸洗 | 表面处理选项会影响外观、耐腐蚀性和后续加工 |
| 应用 | 建筑幕墙、机械框架、船舶配件、食品加工设备 | 利用耐腐蚀性和强度的关键工业用途 |
| 认证 | EN 10204 3.1、ISO 9001、可提供 MTRs | 钢厂测试报告和第三方质量认证 |
| 包装 | 钢带捆扎、护边、防水包装 | 出口级包装，防止表面损伤和受潮 |
| MOQ | 500 kg（标准）；长期合同可协商 | 库存和定制生产的最小起订量 |
不锈钢扁钢 - 304/316牌号，精密切割，出厂检测
不锈钢扁钢是一种多功能、轧制表面的长材产品，具有矩形横截面——广泛用于结构制造、建筑幕墙、机械框架和精密工程应用。我们的不锈钢扁钢专为卓越的耐腐蚀性、尺寸精度和一致的机械性能而设计，满足北美、欧洲和亚太市场工业OEM、建筑承包商和专业制造商的高要求。每批产品均经过完整的轧制测试和可追溯认证，以确保符合国际材料标准。
什么是不锈钢扁钢？
不锈钢扁钢是一种实心、热轧或冷加工钢材产品，具有均匀的厚度、精确的宽度公差（按EN 10058:2017为±0.1 mm）和笔直的纵向边缘。与角钢或槽钢不同，它具有简单的矩形轮廓——通常宽度从10 mm到300 mm，厚度从3 mm到100 mm不等。其决定性属性包括出色的防腐性能、优异的焊接特性和坚固的结构完整性——使其成为暴露于潮湿、化学品或盐碱环境中的首选材料。
不锈钢扁钢技术规格
我们的不锈钢扁钢按照 ASTM A276/A276M-22a（不锈钢棒材和型材标准规范）和 EN 10088-2:2014（不锈钢技术交货条件）制造。主要牌号包括 AISI 304 (1.4301)，根据 ASTM A240，其最小抗拉强度为 515 MPa，最小屈服强度为 205 MPa，碳含量上限为 0.08%，铬镍成分为 18–20% Cr / 8–10.5% Ni。为增强耐氯化物性能，AISI 316 (1.4401) 的最小抗拉强度为 520 MPa，钼含量为 2.0–3.0%，点蚀抗力当量数 (PREN) ≥25。所有产品均提供表面光洁度选项，包括 2B（冷轧，哑光）、No. 1（热轧，除鳞）或定制研磨光洁度，根据 DIN 17100 平整度公差可达 ±0.05 mm。
常见问题
最小起订量 (MOQ) 是多少？
不锈钢扁钢的标准最小起订量为每个牌号和尺寸 500 kg——试订单可灵活处理。对于认证样品或紧急原型制作需求，我们可以承接更小的数量（低至 100 kg），具体取决于仓库库存和切割设置。
你们提供材质测试证书吗？
是的——我们每批货物都提供 EN 10204 3.1 材质测试证书。这些文件包括完整的化学成分分析（通过 OES 光谱法验证）、力学性能验证（拉伸、硬度、弯曲测试结果），以及与 ASTM E527 和 ISO 17637 一致的炉号可追溯性。
典型的交货时间是多久？
对于现货尺寸（304/316，最大宽度 150 mm × 厚度 25 mm），标准交货期为订单确认后 3–5 个工作日。定制切割长度或非标准尺寸需要 10–14 天，而 316L 或 2205 双相钢等特殊牌号由于钢厂排产和额外的钝化处理，可能需要 2–3 周。
你们可以按定制尺寸切割吗？
可以——我们的 CNC 控制锯切生产线在所有不锈钢扁钢订单上可实现 ±0.5 mm 的长度公差和 0.2° 以内的垂直度。我们支持 100 mm 至 6,000 mm 的定尺切割服务，以及根据客户图纸可选的边缘去毛刺、倒角或钻孔（采用 ISO 2768-mK 公差）。
获取不锈钢扁钢的竞争力报价
立即申请为您量身定制的不锈钢扁钢报价——并享受工厂直销价格、严格的质量保证以及每个阶段响应迅速的技术支持。无论您是采购用于船舶栏杆、制药设备框架还是食品级输送机，我们的团队都能确保最佳的牌号选择、精确的尺寸控制和无缝的物流协调。凭借超过 18 年的 B2B 钢铁分销经验和 ISO 9001:2015 认证流程，我们提供您可以信赖的可靠性。
- 提供 24/7 客户支持
- 免费样品用于质量评估
- 批量订单具有竞争力的价格
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立即联系我们，在 24 小时内获取您的免费报价！
评分与评价
Michael Johnson
United States
2025-01-15
Acceptable Quality 304 Flat Bar with Minor Issues Resolved
Decent product quality overall, with one issue that was resolved. We noticed slight width variation (up to +0.22 mm / −0.15 mm) on 7 of 42 pieces in our 10.2-ton order of 304 flat bar (120 mm × 30 mm, No. 1 finish) for bridge handrail brackets. The variance exceeded the ±0.1 mm tolerance stated in EN 10058. Supplier acknowledged the deviation, provided revised mill test reports with root-cause analysis (roll wear adjustment), and offered a 3% credit plus priority scheduling for our next order. Packaging remained robust. For high-tolerance structural work, recommend specifying tighter width control upfront. Overall acceptable. 3 stars due to initial tolerance nonconformance.
Carlos Silva
Brazil
2025-03-01
Decent 304 Flat Bar for Industrial Machinery
Good value for the price. We compared quotes from 5 suppliers across Latin America and Asia, and their offer was 9% below market average while providing full traceability and ASTM A276 compliance. Ordered 7.6 tons of 304 flat bar (45 mm × 16 mm, 2B finish) for textile loom frames. Material quality was consistent, and dimensional checks passed. One batch required rework on 2 pieces due to minor surface oxidation (easily removed by pickling). Supplier issued replacement within 5 days at no cost. Overall, dependable performance for industrial machinery. 4 stars because surface oxide control in humid transit conditions needs attention.
Ahmed Al-Hassan
UAE
2025-04-10
Reliable 316 Flat Bar for Desert Solar Mounts
Reliable supply for harsh-environment projects. Ordered 11.4 tons of AISI 316 flat bar (75 mm × 20 mm, 2B finish, cut to 3,000 mm) for solar tracker frames in Abu Dhabi. Certificates confirmed Mo 2.45% and PREN ≥25.7 — critical for chloride resistance in coastal desert air. Delivery took 13 days, matching the quoted timeline. Packaging used double-layer corrugated cardboard and desiccant packs — no corrosion observed. Minor delay occurred on customs clearance documentation (resolved in 48 hrs). Overall, strong technical reliability and responsiveness. 4 stars because documentation turnaround for GCC import permits could be faster.
Robert Brown
United Kingdom
2025-05-22
Solid Value 304 Flat Bar for Structural Fabrication
Good value for the price. We compared quotes from 4 suppliers across EU and Asia, and their pricing was ~6% lower than regional averages while maintaining full EN 10204 3.1 certification and ASTM A276 compliance. Ordered 9.1 tons of 304 flat bar (100 mm × 25 mm, No. 1 finish) for warehouse racking. Dimensions matched specs, and material certs were complete. The only minor issue was one shipment had 3 pieces with slight edge waviness (≤0.3 mm deviation), corrected by light grinding. Overall, excellent cost-performance ratio for heavy-duty structural use. 4 stars because edge straightness consistency could be improved.
Wei Chen
Singapore
2025-06-15
Perfect 316 Flat Bar for Pharmaceutical Equipment
We ordered 3.8 tons of AISI 316 flat bar (50 mm × 18 mm, electropolished finish, cut-to-length at 1,800 mm) for sterile pharmaceutical tank supports. EN 10204 3.1 certs included passivation verification (ASTM A967) and ferrite content < 0.5%. Surface finish met ASME BPE 2022 Ra ≤ 0.38 µm. We tested 10 samples with profilometer — average Ra was 0.34 µm. Zero micro-pitting under 100x magnification. Packaging included vacuum-sealed bags with VCI paper. Arrived undamaged in 14 days (custom finish lead time). Their QA team provided pre-shipment photos. Flawless for GMP environments. Highly recommended.
Chris Martin
Canada
2025-08-03
Premium 304 Flat Bar for Architectural Cladding Subframes
We ordered 5.3 tons of AISI 304 flat bar (30 mm × 10 mm, 2B finish, cut to 4,500 mm) for visible architectural subframes in Toronto’s new transit hub. Certificates confirmed surface roughness Ra ≤ 0.4 µm and chromium content 18.9% — ideal for aesthetic consistency. All bars passed visual inspection under 500-lux lighting: no scratches, discoloration, or edge defects. CNC sawing achieved ±0.3 mm length tolerance and end squareness of 0.18°. Delivery occurred in 5 working days with protective PE film and wooden spacers. This is our 5th consecutive order. Unmatched consistency for architectural applications. Highly recommended.
William Taylor
Australia
2025-09-25
Outstanding 316 Flat Bar for Offshore Platform Components
We ordered 15.7 tons of AISI 316 flat bar (80 mm × 25 mm, 2B finish, cut to 3,200 mm lengths) for structural bracing on an offshore LNG module. EN 10204 3.1 certs included full OES chemical analysis and bend test results confirming ductility ≥30%. Surface inspection revealed zero pitting or mill scale. Thickness variation across batch was only ±0.09 mm — tighter than the ±0.2 mm we specified. Shipment arrived via air freight in 11 days with real-time GPS tracking. Their engineer assisted with weld procedure qualification documentation. Perfect for critical offshore use. Highly recommended.
Hans Mueller
Germany
2025-11-02
Precision-Cut 304 Flat Bar for Machinery Frames
We ordered 6.2 tons of cold-finished AISI 304 flat bar (60 mm × 20 mm, ground finish, ±0.05 mm flatness) for high-precision CNC machine bases. Certificates verified hardness at 215 HBW and yield strength 228 MPa — well above ASTM A240 minimums. All pieces passed laser-flatness inspection (deviation < 0.03 mm over 3 m). Custom chamfering and M8 tapped holes per our drawing were executed to ISO 2768-mK tolerances. Delivery took 9 days despite custom machining — 1 day faster than quoted. This is our 2nd order this quarter. Superior dimensional control and repeatability. Highly recommended for precision engineering applications.
James Wilson
United Kingdom
2025-12-17
Superior 316 Flat Bar for Marine Railings
We ordered 12 tons of AISI 316 stainless steel flat bar (40 mm × 15 mm, cut-to-length at 2,400 mm, No. 1 finish) for coastal railing fabrication. Mill test reports showed Mo content at 2.62%, PREN = 26.8, and tensile strength 538 MPa — exceeding EN 10088-2 requirements. We conducted salt-spray testing per ISO 9227: zero red rust after 1,200 hours. Flatness tolerance held to ±0.04 mm/m as specified. CNC-cut ends were perpendicular within 0.15°. Packaging included moisture-barrier wrapping and corner protectors — zero damage on arrival. Outstanding technical support during grade selection. Highly recommended for marine infrastructure.
John Smith
United States
2026-01-10
Excellent Quality 304 Flat Bar for Food Conveyor Frames
We ordered 8.5 tons of AISI 304 stainless steel flat bar (25 mm width × 12 mm thickness, 2B finish) for our FDA-compliant food-grade conveyor system. EN 10204 3.1 certificates confirmed Cr 18.4%, Ni 8.7%, and carbon at 0.042% — fully compliant with ASTM A276. Surface finish was uniform with no edge burrs or scale residues. Dimensional accuracy was exceptional: width tolerance ±0.07 mm, thickness ±0.11 mm per EN 10058. Delivered in 4 days — 1 day ahead of schedule. This is our 4th order. Highly recommended for hygienic processing equipment.
了解供应商
Product Display
After more than a decade of continuous investment and innovation, Feihong Steel Co., Ltd. has now developed into a leading enterprise in the industry with a complete industrial chain, a wide range of product specifications, prompt supply, excellent product quality, strong industry influence and good social reputation. Currently, our products are mainly sold to the eastern region of China and over 40 countries and regions, such as Southeast Asia, South Asia, West Asia, Eastern Europe, South America, etc. Our stainless steel series products have consistently ranked among the top in China for many years.
Customer feedback
Customer feedback
可定制
超低价
$3275
1-49 吨
基准价
$3130
50-99 吨
4.4% 优惠
$3060
≥100 吨
6.6% 优惠
价格有效期：随行就市
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
