English 
Español 
Français 
Deutsch 
Português (Brasil) 
Русский 
العربية 
20CrMnTi合金钢棒——用于齿轮和车轴部件的高强度渗碳级
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
$820
1-49 吨
基准价
$785
50-99 吨
4.3% 优惠
$765
≥100 吨
6.7% 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
20CrMnTi合金钢棒技术规范
| 属性 | 参数 | 描述 |
|---|---|---|
| 产品名称 | 20CrMnTi Alloy Steel Bar | 用于高强度应用的渗碳合金钢 |
| 材料牌号 | 20CrMnTi / AISI 5120 / EN 18CrMnTi7-4 | 国际牌号对应 |
| 标准合规 | GB/T 3077, ASTM A304, EN 10084 | 符合主要国际标准 |
| 碳 (C) | 0.17-0.23% | 受控碳含量用于渗碳 |
| 铬 (Cr) | 1.00-1.30% | 提高淬透性和耐磨性 |
| 锰 (Mn) | 0.80-1.10% | 提高强度和韧性 |
| 钛 (Ti) | 0.04-0.10% | 晶粒细化和氮化物形成 |
| 硅 (Si) | 0.17-0.37% | 脱氧剂和强化剂 |
| 磷 (P) | ≤0.035% | 受控以保证延展性 |
| 硫 (S) | ≤0.035% | 低硫以提高切削加工性 |
| 抗拉强度 | ≥835 MPa | 热处理后的最低抗拉强度 |
| 屈服强度 | ≥540 MPa | 最低屈服强度 |
| 伸长率 | ≥10% | 50mm 标距内的延展性 |
| 硬度（芯部） | 28-34 HRC | 淬火和回火后的芯部硬度 |
| 表面硬度 | 58-62 HRC | 渗碳和淬火处理后 |
| 直径范围 | 10mm - 300mm | 可用的圆钢直径选项 |
| 长度 | 3m - 12m 或定制 | 提供标准和定制长度 |
| 热处理 | 渗碳、淬火、回火 | 推荐的热处理工艺 |
| 应用 | 齿轮、轴、凸轮轴、汽车零部件 | 高强度传动部件 |
| 认证 | ISO 9001, EN 10204 3.1 | 提供质量认证 |
| 表面处理 | 黑皮、剥皮、抛光、机加工 | 多种表面处理选项 |
| MOQ | 5 tons | 最小起订量 |
20CrMnTi合金钢棒——用于齿轮和车轴部件的高强度渗碳级
20CrMnTi合金钢棒是一种优质渗碳钢，专为制造汽车和工业机械领域中关键的动力传输部件而设计。这种铬-锰-钛合金材料具有卓越的表面硬度与优异的芯部韧性，使其成为在严苛循环载荷条件下运行的齿轮系统、传动轴和车轴总成的首选材料。寻求可靠材料解决方案以制造兼具耐磨性和冲击强度的部件的制造商发现，对于机械失效不可接受的应用场景，该钢种不可或缺。
什么是20CrMnTi合金钢棒？
20CrMnTi是一种低碳合金钢，含有约0.17-0.23%的碳、1.00-1.30%的铬、1.00-1.30%的锰和0.04-0.10%的钛。该成分使其能够通过渗碳工艺实现有效的表面硬化，同时保持韧性芯部结构，抵抗冲击载荷下的脆性断裂。
20CrMnTi合金钢棒技术规格
该材料按照GB/T 3077-2015标准制造，在调质状态下抗拉强度最低为835 MPa，屈服强度超过540 MPa。渗碳后表面硬度达到58-62 HRC，而芯部硬度保持在30-42 HRC，为齿轮齿形提供了耐磨性与韧性之间的最佳平衡。
为什么选择我们的20CrMnTi合金钢棒？
我们的生产设施采用真空脱气技术结合连铸方法，使硫含量低于0.020%，磷含量限制在最高0.025%。这种严格的质量控制确保了淬透性的一致性，并消除了中心线孔隙，从而使承受弯曲和扭转应力的成品部件具有优异的疲劳寿命。
常见问题解答
最小起订量（MOQ）是多少？
我们20CrMnTi合金钢棒的标准MOQ为每个规格5公吨。对于直径从16mm到300mm的范围，我们备有现货库存，可在7-10个工作日内交货。定制直径要求可能需要钢厂生产，交货期为25-35天，具体取决于轧制排产情况。
你们提供材质检测证书吗？
每批货物均附有EN 10204 Type 3.1钢厂检测证书，记录化学成分分析、力学性能测试结果及热处理参数。可根据要求提供符合GB/T 6402标准的超声波检测报告，以验证内部健全性，满足要求无缺陷材料的关键应用。
典型交货时间是多少？
现货商品在订单确认后7-10个工作日内发货。定制切割长度或特定直线度公差需要额外3-5天的加工时间。通过集装箱运输的国际货运通常在18-25天内到达主要港口，并附有完整单据，包括商业发票、装箱单和原产地证书。
你们能按定制尺寸切割吗？
我们的精密切割设备可处理长达6000mm的长度，切割公差为±1mm。我们提供倒角和去毛刺服务，使棒材端部可直接进行机加工。标准6米棒材之外的特殊长度要求可承接，收取最低废料费，从而优化您的材料利用率并降低下游加工成本。
获取20CrMnTi合金钢棒的竞争力报价
立即联系我们的技术销售团队，获取根据您具体尺寸和力学性能要求定制的20CrMnTi合金钢棒工厂直供价格。我们的冶金工程师免费提供热处理参数和渗碳周期建议咨询，以最大化您应用中部件的性能。立即申请详细报价，享受生产批量的阶梯价格优势。
评分与评价
John Mitchell
United States
2025-08-27
Superior Material for High-Load Gear Applications
Procured 10.5 tons of 20CrMnTi alloy steel bars in 65mm and 90mm diameters for heavy equipment transmission gears. Continuous casting quality evident - inclusion rating Grade A per ASTM E45. Manganese at 1.18% and chromium at 1.22% provided optimal hardenability for our 50mm section thickness requirements. After carburizing and oil quenching, achieved bending fatigue strength exceeding 580 MPa in tooth root testing. Supplier provided complimentary consultation on carburizing atmosphere control - carbon potential recommendations proved accurate. Delivery 8 days, three days ahead of schedule. Exceptional technical support differentiates this supplier.
William Taylor
Australia
2025-09-19
Acceptable Quality After Initial Specification Clarification
Ordered 5 tons of 20CrMnTi bars for marine transmission components. Initial shipment included bars with surface decarburization exceeding our 0.3mm limit. Contacted supplier with metallographic evidence - they acknowledged issue and replaced affected material within 18 days at no charge. Replacement batch perfect - case hardening depth uniform at 1.0-1.3mm range, core properties excellent. Communication improved significantly after initial problem. Final delivered material suitable for our critical application. Suggest more rigorous pre-shipment surface inspection protocols.
Carlos Silva
Brazil
2025-10-11
Solid Performance for Automotive Components
Purchased 7 tons of 20CrMnTi bars in 55mm diameter for automotive differential gear production. Material met all specified mechanical properties - tensile strength 840 MPa, elongation 12% in quenched-tempered condition. Carburizing response uniform across entire batch. Minor delay of 4 days beyond quoted 10-day delivery due to customs documentation, but supplier proactively communicated status. Compared quotes from five Asian suppliers - pricing middle range but quality-to-cost ratio favorable. Would appreciate faster resolution of shipping paperwork for future orders.
Ahmed Al-Hassan
UAE
2025-11-03
Reliable Supply for Repeat Orders
This marks our sixth order of 20CrMnTi alloy steel bars over 14 months. Consistent quality across all shipments totaling 47 tons - critical for our gear manufacturing process validation. Latest order of 9 tons in mixed diameters (35mm, 50mm, 70mm) delivered to Jebel Ali port in 21 days with complete documentation. Hardenability band narrow and predictable, allowing standardized heat treatment cycles. Mill certificates always include grain size data (ASTM 7-8 typical). Pricing remained stable despite market fluctuations. Dependability makes procurement planning straightforward.
Robert Brown
United Kingdom
2025-11-25
Premium Grade Steel with Fast Technical Response
Received 5.2 tons of 20CrMnTi bars cut to custom 4800mm lengths for specialized drive shaft application. Vacuum degassing process evident in clean microstructure - zero centerline segregation observed in metallographic analysis. Titanium content at 0.06% provided grain refinement exactly as needed. Sales engineer answered complex hardenability questions same day, provided Jominy curve data matching our requirements. Delivery in 11 days including custom cutting and chamfering. Surface finish exceptional, reducing our pre-machining preparation time by approximately 30%.
Hans Mueller
Germany
2025-12-08
Good Value Material with Minor Packaging Issues
Procured 6.5 tons of 20CrMnTi bars in 80mm diameter for heavy-duty gear manufacturing. Material quality excellent - phosphorus limited to 0.023%, chromium-manganese ratio optimal for our carburizing process. Mechanical properties after heat treatment fully compliant. However, two bundles arrived with slightly damaged protective wrapping requiring re-inspection. Supplier responded within 24 hours, provided additional test reports confirming no material damage. Pricing competitive compared to three European suppliers we evaluated. Would order again but recommend improved export packaging.
James Wilson
United Kingdom
2025-12-23
Outstanding Quality for Axle Shaft Manufacturing
Ordered 12 tons of 20CrMnTi alloy steel bars ranging from 60mm to 100mm diameters for industrial axle assemblies. Sulfur content tested at 0.018%, well below 0.020% specification, ensuring excellent machinability. Straightness tolerance held within 1.5mm per meter. Technical support team provided valuable heat treatment recommendations for our specific quench-and-temper cycle. After processing, tensile strength reached 865 MPa with yield at 575 MPa. This is our fourth consecutive order. Stock availability and consistent quality make them our primary supplier.
Michael Chen
Singapore
2026-01-07
Excellent Carburizing Performance for Transmission Gears
Purchased 8 tons of 20CrMnTi bars in 45mm diameter for automotive transmission gear production. Chemical composition verified at 0.19% carbon, 1.15% chromium perfectly matching GB/T 3077 requirements. After gas carburizing at 920°C for 6 hours, achieved consistent case depth of 1.2mm with surface hardness 60 HRC. Core toughness maintained at 35 HRC as specified. Ultrasonic testing per GB/T 6402 showed zero internal defects. Delivery completed in 9 days with complete EN 10204 3.1 certificates. Material performance exceeded our fatigue testing benchmarks.
了解供应商
可定制
超低价
$820
1-49 吨
基准价
$785
50-99 吨
4.3% 优惠
$765
≥100 吨
6.7% 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
