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不锈钢棒 - 304/316级，圆棒/方棒/扁棒，ASTM A276认证
山东快马钢铁有限公司
已认证
定制生产厂家
·
7 年
·
China
China
可定制
超低价
$1850
1-49 吨
基准价
$1770
50-99 吨
4.3% 优惠
$1730
≥100 吨
6.5% 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
不锈钢棒材技术规范
| 属性 | 参数 | 描述 |
|---|---|---|
| 产品名称 | 不锈钢棒 | 用于工业应用的耐腐蚀钢棒 |
| 材料牌号 | 304 / 316 / 316L / 310S / 321 / 2205 | 提供奥氏体和双相牌号 |
| 标准合规 | ASTM A276, EN 10088-3, JIS G4303, GB/T 1220 | 符合主要国际标准 |
| 碳 (C) | ≤0.08% (304) / ≤0.03% (316L) | 低碳含量以增强焊接性 |
| 铬 (Cr) | 16.0-26.0% | 耐腐蚀性的主要元素 |
| 镍 (Ni) | 8.0-22.0% | 增强延展性和奥氏体稳定性 |
| 钼 (Mo) | 2.0-3.0% (316/316L) | 提高抗点蚀和缝隙腐蚀能力 |
| 抗拉强度 | ≥515 MPa (304) / ≥485 MPa (316L) | 根据 ASTM A276 的最小抗拉强度 |
| 屈服强度 | ≥205 MPa | 0.2% 偏移量下的最小屈服强度 |
| 伸长率 | ≥40% | 50mm 标距长度下的延展性 |
| 硬度 | ≤217 HBW (304) / ≤187 HBW (316L) | 最大布氏硬度 |
| 直径范围 | 3mm - 500mm | 圆棒直径选项 |
| 长度 | 3m - 12m 或定制 | 提供标准和定制长度 |
| 表面处理 | 黑皮、酸洗、光亮、抛光、剥皮 | 多种表面处理选项 |
| 形状 | 圆形、方形、六角形、扁形 | 可用的横截面轮廓 |
| 应用 | 船舶、化工、食品加工、建筑 | 典型工业应用 |
| 耐腐蚀性 | 在酸性和氯化物环境中表现优异 | 卓越的抗点蚀和抗应力腐蚀性能 |
| 认证 | EN 10204 3.1, ISO 9001, NACE MR0175 | 提供质量认证 |
| 包装 | 钢带捆扎，塑料端盖，木箱 | 标准出口包装 |
| MOQ | 1 ton | 最小起订量 |
不锈钢棒 - 304/316级，圆棒/方棒/扁棒，ASTM A276认证
不锈钢棒材是现代制造业中的基础结构部件，在各种工业应用中具有优异的机械性能和耐腐蚀性。这些精密工程棒材在建筑、汽车、航空航天和化学加工行业中发挥着关键作用，这些行业对材料完整性和长期耐久性有着不可妥协的要求。不锈钢棒材提供多种牌号和型材，为工程师和制造商提供了从精密轴到建筑支撑结构等各种部件的多功能解决方案。
什么是不锈钢棒材？
不锈钢棒材是通过热轧或冷拔工艺制造的实心金属产品，其特点是铬含量最低为10.5%，可形成防止腐蚀的钝化氧化层。这些棒材可生产为各种横截面几何形状，包括圆形、方形、六角和扁平配置，尺寸公差符合ASTM A276/A276M标准，适用于需要严格直径和直线度规格的精密应用。
不锈钢棒材技术规格
我们的不锈钢棒材在化学成分和机械性能方面符合ASTM A276/A276M-17第6节的要求。304牌号棒材的最低抗拉强度为515 MPa，屈服强度为205 MPa，而316L变体通过添加2-3%的钼提供增强的耐腐蚀性。圆棒直径范围从6mm到300mm，长度选项可达6米。表面处理包括热轧、冷拔、无心磨削和抛光状态，可根据客户要求达到Ra 0.8μm规格。
为什么选择我们的不锈钢棒材
我们与通过 ISO 9001:2015 认证的制造商保持钢厂直供合作关系，通过炉号文件确保材料可追溯性，并按照 EN 10204 3.1 标准提供完整的钢厂质保书。我们的库存管理系统保证标准牌号的交货期为 7-14 天，定价结构体现工厂竞争性价格。质量保证规程包括光谱分析验证、按 ASTM E8 进行力学测试，以及使用可追溯至国家标准的校准测量设备进行尺寸检验。
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，但对于优质牌号或特殊型材，我们可接受较小数量并调整价格。当总重量超过 1000 公斤时，接受混合牌号订单，为多样化项目需求提供采购灵活性。
你们提供材质证明书吗？
是的，我们每批货物均提供 EN 10204 3.1 钢厂质保书，记录化学成分分析、力学性能测试结果及热处理参数。对于需要独立验证的关键应用，可根据要求提供按 ASTM A276 补充要求 S5 的第三方检验证书。
典型交货时间是多少？
现货商品在订单确认后 3-5 个工作日内发货。需要钢厂生产的定制尺寸根据规格复杂程度和当前生产排期，交货期为 15-21 天。紧急需求可提供加急处理，部分尺寸提供 48 小时应急服务。
能否按定制尺寸切割？
我们的精密切割服务采用CNC锯切设备，对于长度不超过6米的棒材，公差可控制在±0.5mm。我们还提供无心磨削、车削和表面精加工等附加加工能力，以满足精确的尺寸要求。对于超过5000公斤的订单，我们与专业轧钢厂合作生产定制型材和非标截面。
获取不锈钢棒材有竞争力的报价
立即提供您的规格要求，包括牌号、尺寸、数量和交货地点，即可获取详细报价。我们的技术销售团队将在4个工作小时内回复，提供全面的价格、库存确认以及针对具体应用的建议。联系我们，讨论批量定价协议、寄售库存计划，或获取材料选型和合规验证方面的技术支持。
评分与评价
John Smith
United States
2025-09-13
Superior 304 Precision Bars for Aerospace Components
Third consecutive order of 304 precision ground bars, this time 560 kg (12mm diameter, centerless ground). Dimensional consistency exceptional with diameter variation under 0.02mm across entire batch, critical for our CNC machining operations. Surface finish Ra measured at 0.5μm, superior to our 0.8μm requirement. Material hardness uniform at 88 HRB, indicating consistent heat treatment. Supplier's quality assurance protocols with calibrated measurement equipment traceable to NIST standards provided confidence for aerospace certification. Lead time was 9 days for stock items as promised.
William Taylor
Australia
2025-09-29
Acceptable Quality with Initial Documentation Delay
Ordered 750 kg of 316 round bars (30mm diameter, 6-meter lengths) for offshore platform retrofit. Material quality was acceptable with corrosion resistance properties suitable for marine environment. Initial shipment arrived without complete EN 10204 3.1 certificates, causing 3-day delay in our inspection process. Supplier promptly provided missing documentation after our inquiry. Mechanical properties tested satisfactory at 530 MPa tensile strength. Custom cutting service delivered ±0.4mm tolerance as specified. Would order again but emphasize documentation requirements upfront.
Ahmed Al-Hassan
UAE
2025-10-15
Perfect 316L Bars with Fast Emergency Service
Required urgent replacement of 380 kg of 316L round bars (20mm diameter) for desalination plant maintenance shutdown. Utilized 48-hour emergency service option, material arrived in 2 days via air freight. Mechanical testing per ASTM E8 showed tensile strength at 520 MPa and elongation at 42%, meeting all specifications for pressure vessel components. Surface condition was polished finish with Ra value measured at 0.7μm. Premium pricing for expedited service was justified by avoiding costly plant downtime extension.
Carlos Silva
Brazil
2025-11-02
Reliable 304L Round Bars for Construction
We purchased 1,400 kg of 304L round bars (various diameters 16mm-50mm) for architectural support structures in coastal building project. Material certificates showed carbon content at 0.024%, within 0.030% maximum for L-grade specification. Compared quotes from 5 suppliers, this offer provided best value with factory-competitive pricing. Delivery took 19 days which was acceptable for our timeline. One diameter size had slight variation in straightness but within ASTM tolerance limits and suitable for our application.
Robert Brown
United Kingdom
2025-11-20
Premium 316 Hex Bars for Chemical Processing
Ordered 920 kg of 316 hexagonal bars (32mm across flats) for chemical reactor components. Spectroscopic analysis confirmed chromium at 17.2% and nickel at 11.8%, perfectly balanced for our acidic environment application. Centerless ground finish provided excellent dimensional consistency with straightness deviation under 0.5mm per meter. Supplier accommodated our mixed-grade order including smaller quantity of 316L, total shipment 1,150 kg. Independent third-party inspection per ASTM A276 S5 supplementary requirement arranged without delays.
Hans Mueller
Germany
2025-12-08
Good Quality 304 Flat Bars at Competitive Price
Purchased 650 kg of 304 flat bars (50mm x 10mm, hot rolled) for automotive component manufacturing. Material quality was solid with consistent mechanical properties across the batch. Yield strength measured at 215 MPa, slightly above minimum 205 MPa requirement. Pricing was 8% lower than our regular European supplier. Minor surface scaling on hot rolled finish required additional pickling, but this is typical for this condition. Delivery took 16 days, within the quoted 15-21 day range for custom sizes.
James Wilson
United Kingdom
2025-12-23
Outstanding Service on 304 Square Bar Order
We required 1,200 kg of 304 square bars (40mm x 40mm) for coastal infrastructure project with tight deadline. Sales team responded within 3 hours with availability confirmation and competitive pricing. Material shipped in 4 business days, arriving 2 days ahead of our construction schedule. Dimensional tolerances measured at ±0.3mm, well within our ±0.5mm requirement. Tensile strength tested at 580 MPa, exceeding the 515 MPa minimum standard. This is our fourth order this year.
Michael Chen
Singapore
2026-01-07
Excellent 316L Round Bars for Pharmaceutical Equipment
Ordered 850 kg of 316L round bars (25mm diameter, cold drawn finish) for our pharmaceutical processing equipment. Chemical composition verified at 0.019% carbon with 2.2% molybdenum, fully meeting ASTM A276 requirements. Surface finish achieved Ra 0.6μm, exceeding our Ra 0.8μm specification. Mill test certificates per EN 10204 3.1 provided complete traceability with heat number documentation. Delivered in 11 days from order confirmation. Technical support team helped us select appropriate grade for corrosive environment exposure.
了解供应商
可定制
超低价
$1850
1-49 吨
基准价
$1770
50-99 吨
4.3% 优惠
$1730
≥100 吨
6.5% 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
