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304不锈钢棒 - 工业用AISI 304圆棒/方棒/扁棒

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
$2090 1-49 吨 基准价
$2000 50-99 吨 4.3% 优惠
$1950 ≥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$ 2,090.00
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

304不锈钢棒的技术规格

属性参数描述
产品名称304 Stainless Steel Bar奥氏体铬镍不锈钢棒
材料牌号304 / AISI 304 / EN 1.4301 / UNS S30400国际牌号对应
标准符合性ASTM A276, ASTM A479, EN 10088-3, JIS G4303符合主要国际标准
碳 (C)≤0.08%碳含量用于强度和耐腐蚀性
铬 (Cr)18.0-20.0%提供优异的耐腐蚀性
镍 (Ni)8.0-10.5%增强延展性和韧性
锰 (Mn)≤2.0%改善加工性和强度
硅 (Si)≤1.0%脱氧剂和强化剂
磷 (P)≤0.045%受控以改善延展性
硫 (S)≤0.030%低硫以提高耐腐蚀性
抗拉强度≥515 MPa根据 ASTM A276 的最低抗拉强度
屈服强度≥205 MPa0.2% 偏移量下的最低屈服强度
伸长率≥40%50mm 标距长度下的延展性
硬度≤201 HBW / ≤92 HRB最大硬度值
直径范围3mm - 500mm可用的圆棒直径选项
长度3m - 6m 或定制提供标准和定制长度
表面处理Black, Peeled, Polished, Bright多种表面处理选项
应用食品加工、化工设备、建筑、医疗器械典型应用行业
认证EN 10204 3.1, ISO 9001, ASTM提供质量认证
MOQ1 ton最小起订量

304不锈钢棒 - AISI 304圆棒/方棒/扁棒,工业用

304不锈钢棒是当今工业市场上用途最广泛的奥氏体铬镍合金之一。这种优质材料因其在耐腐蚀性、成形性和成本效益方面的卓越平衡,广泛应用于食品加工、建筑项目、化工设备和一般制造领域。我们的304棒材严格按照ASTM A276/A276M标准制造,为寻求非海洋环境可靠材料解决方案的工程师、制造商和采购专业人员提供服务。

什么是304不锈钢棒?

304不锈钢棒是一种奥氏体合金,含18-20%铬和8-10.5%镍,根据ASTM A240规范,碳含量限制在最高0.08%。这种成分提供了优异的抗氧化性,并在从低温条件到870°C间歇使用温度范围内保持结构完整性。

304不锈钢棒技术规格

我们的AISI 304棒材符合多项国际标准,包括ASTM A276、EN 10088-3:2014和JIS G4303。典型机械性能包括最低抗拉强度515 MPa、屈服强度205 MPa,以及50mm标距长度下40%的伸长率。20°C时密度为7.93 g/cm³,热导率为16.2 W/m·K。

可供形式和尺寸

我们库存的304不锈钢棒有三种主要配置,以满足多样化的制造需求:

圆棒规格

圆棒直径范围从6mm到300mm,标准长度为3000mm和6000mm。热轧圆棒符合ASTM A276公差等级1,而冷拔版本满足更严格的h9公差,适用于需要最小材料去除量的精密加工应用。

304不锈钢棒供应商

方钢和扁钢选项

方钢的横截面范围从 10mm × 10mm 到 100mm × 100mm。扁钢尺寸从 20mm × 3mm 到 150mm × 12mm,按 EN 10058 尺寸标准通过热轧制造。表面处理包括轧制表面、酸洗钝化,以及用于关键公差应用的精密研磨。

关键性能特征

304 牌号在大气环境和轻度腐蚀介质中具有出色的抗腐蚀性能。其铬镍基体形成自修复钝化氧化层,在机械损伤后可再生,无需表面涂层即可提供长期保护。

加工优势

这种奥氏体合金表现出优异的冷成型特性,其加工硬化速率适用于深冲和弯曲操作。可使用 GTAW、GMAW 和 SMAW 工艺进行焊接而无需预热,但根据 AWS A5.9 规范,建议使用 AWS ER308L 填充金属以保持焊接接头的耐腐蚀性。

可加工性考量

虽然与易切削牌号相比,304 的可加工性评级较低,但适当的刀具选择和切削参数可产生令人满意的结果。在车削和铣削操作中,具有正前角的硬质合金刀具和含硫切削液可优化切屑形成和表面光洁度质量。

行业应用

食品加工设施利用 304 棒材制造设备框架、输送机部件和卫生管道系统,因为其符合 FDA 标准且易于清洁。建筑应用包括扶手、结构支撑和装饰元素,其中美观外观与功能需求相辅相成。化工厂采用该牌号制造储罐、阀门和工艺设备,用于在中温下处理非氯化物溶液。

304不锈钢棒材批发

质量保证与认证

每个生产批次均经过光谱分析,以验证化学成分符合ASTM公差范围。机械测试包括按ASTM E8方法进行的拉伸试样测试,并附有记录结果。所有货物均随附符合EN 10204 Type 3.1标准的钢厂材质证明书,提供至炉号和生产记录的完整可追溯性。

304不锈钢棒材制造商

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500公斤,以维持具有竞争力的钢厂直供价格。但是,我们也可以为原型制作和取样目的承接更小数量,并采用调整后的价格结构。满足总重量门槛的混合尺寸订单可享受批量价格。

你们提供材质证明书吗?

是的,每批货物均随附符合EN 10204 Type 3.1标准的综合钢厂材质证明书。这些文件包括化学成分分析、力学性能测试结果、热处理记录和尺寸检验报告。可根据请求提供数字副本,以便与质量管理系统集成。

典型的交货时间是多久?

库存尺寸在订单确认后5-7个工作日内发货。需要钢厂生产的定制尺寸根据轧制计划和精整要求,交货周期为4-6周。紧急项目可提供加急处理,并收取适用的加急费用。

你们可以按定制尺寸切割吗?

我们的精密切割服务包括公差为 ±1mm 的定尺锯切、用于平面度规格的表面磨削,以及用于复杂几何形状的 CNC 加工。定制切割会根据材料损耗系数和加工时间收取额外费用。STEP 或 DXF 格式的技术图纸有助于准确报价。

获取 304 不锈钢棒的竞争力报价

立即提供尺寸、数量、表面处理要求和交货地点等规格,申请您的定制报价。我们的技术销售团队将在 24 小时内回复详细定价、供货确认和应用支持。立即联系我们,讨论我们的工厂直供 304 不锈钢棒如何优化您的项目需求,同时保持具有成本效益的采购策略。

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
William Taylor
Australia
2025-09-10
Superior 304 Bars for Boat Fittings Manufacturing
Ordered 1.5 tons mixed sizes of 304 round bars (10mm to 80mm diameters, 3000mm lengths) for marine hardware production. Despite not being 316 grade, material shows good atmospheric corrosion resistance for above-waterline applications in Sydney harbor conditions. Straightness tolerance was excellent at 1.5mm per meter. Technical support helped optimize our order mix to minimize waste on CNC lathes. Delivery to Melbourne warehouse completed in 23 days. Price point allows competitive finished product pricing for recreational marine market.
用户
Ahmed Al-Hassan
United Arab Emirates
2025-09-28
Acceptable Quality with Delayed Shipping Resolved
Purchased 700kg of 304 square bars (25mm × 25mm) for architectural trim work in Dubai hotel project. Material quality was acceptable with JIS G4303 certificates provided. Initial shipment delayed by 9 days due to logistics issue, which created scheduling pressure. Supplier arranged expedited freight at their cost and provided 5% discount on next order as compensation. Bars performed adequately during fabrication with standard cutting and drilling operations. Communication could improve but issue was ultimately resolved professionally.
用户
Carlos Silva
Brazil
2025-10-15
Solid Value 304 Flat Bars for Structural Use
Ordered 1.8 tons of 304 flat bars (100mm × 10mm, mill finish) for brewery equipment supports. Material met EN 10088-3 specifications with yield strength at 218 MPa. Price was competitive compared to local suppliers, saving approximately 12% on project budget. Some pieces had minor edge burrs requiring deburring before welding, adding slight labor cost. Delivery to São Paulo took 38 days including customs clearance. Would order again for cost-sensitive projects where surface finish is less critical.
用户
Robert Brown
United Kingdom
2025-11-04
Perfect Material for Repeat Production Runs
We've ordered 304 round bars (16mm and 20mm diameters) six times over 14 months for our standard product line of industrial fittings. Consistency between batches is exceptional - same machinability characteristics, identical surface finish quality. Latest 600kg order included updated ASTM A276 certificates with full heat traceability. Carbide tooling life remains predictable at 450 parts per edge. Pricing held stable despite market fluctuations. This supplier has become our primary source for austenitic bar stock.
用户
Wei Chen
Singapore
2025-11-21
Reliable 304 Bars for Food Processing Equipment
Supplied our client with 2.5 tons of pickled-passivated 304 round bars (diameters 12mm to 50mm) for conveyor system fabrication. FDA compliance documentation provided as requested. Surface roughness measurements averaged Ra 0.8μm, meeting sanitary equipment standards. Our fabricator reported excellent cold forming characteristics during bending operations with minimal spring-back. Third repeat order for Southeast Asian food industry projects. Lead time was 26 days including sea freight to Singapore port.
用户
Hans Mueller
Germany
2025-12-08
Good Quality 304 Square Bars for Chemical Equipment
Purchased 950kg of hot-rolled 304 square bars (40mm × 40mm) for pharmaceutical mixing tank frames. Chemical composition analysis showed 0.06% carbon content, compliant with our specifications. Material performed well during GTAW welding with ER308L filler per AWS A5.9. Minor surface scaling on 3 pieces required additional pickling, but supplier provided credit adjustment promptly. Overall good value for non-critical structural applications. Delivery took 19 days to Stuttgart.
用户
James Wilson
United Kingdom
2025-12-23
Outstanding Service on Custom-Cut Flat Bars
Needed 800kg of 304 flat bars (60mm × 8mm) cut to 2400mm lengths for museum handrail project. Technical team responded within 6 hours with detailed cutting plan and DXF confirmation. Material arrived with precision ground edges at ±0.5mm tolerance as specified. Mill certificates documented tensile strength at 547 MPa. Packaging was excellent with protective wrapping preventing transit damage. Compared quotes from 5 UK suppliers - best combination of quality and lead time.
用户
Michael Torres
United States
2026-01-07
Excellent Cold-Drawn 304 Round Bars for CNC Machining
Ordered 1.2 tons of cold-drawn 304 round bars (25mm diameter, h9 tolerance) for precision hydraulic valve components. Received EN 10204 3.1 certificates showing chromium at 18.4% and nickel at 8.2%, perfectly within ASTM A276 specifications. Diameter tolerance measured at +0.02mm across entire batch. Surface finish quality eliminated secondary grinding operations, saving 15% machining time. Delivered in 11 days to our Texas facility. This is our fourth order this year for automotive projects.

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

可定制 超低价
$2090 1-49 吨 基准价
$2000 50-99 吨 4.3% 优惠
$1950 ≥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$ 2,090.00
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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