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合金钢坯 - 用于锻造和轧制的高强度热轧碳合金钢坯
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
$485
1-49 吨
基准价
$465
50-99 吨
4.1% 优惠
$455
≥100 吨
6.2% 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
合金钢坯技术规范
| 属性 | 参数 | 描述 |
|---|---|---|
| 产品名称 | 合金钢钢坯 | 用于锻造和轧制的半成品钢材 |
| 材料牌号 | AISI 4140, 4340, 8620, 42CrMo4, 34CrNiMo6 | 符合国际标准的常用合金钢牌号 |
| 标准合规 | ASTM A29, EN 10083, JIS G4053, GB/T 3077 | 符合主要国际标准 |
| 碳 (C) | 0.15-0.50% | 碳含量因牌号而异 |
| 铬 (Cr) | 0.40-1.50% | 提高淬透性和耐磨性 |
| 钼 (Mo) | 0.15-0.30% | 增强高温强度 |
| 镍 (Ni) | 0.40-1.80% | 提高韧性和耐腐蚀性 |
| 锰 (Mn) | 0.50-1.00% | 提高强度和淬透性 |
| 硅 (Si) | 0.15-0.40% | 脱氧剂和强化剂 |
| 抗拉强度 | ≥655-1030 MPa | 最低抗拉强度取决于牌号 |
| 屈服强度 | ≥415-900 MPa | 按标准规定的最低屈服强度 |
| 伸长率 | ≥12-20% | 50mm 标距内的延展性 |
| 横截面 | 100×100 - 400×400 mm | 可提供方形和矩形截面 |
| 长度 | 3-12 米或定制 | 标准长度和定制长度 |
| 制造工艺 | 连铸或锻造 | 现代生产方法 |
| 应用 | 汽车零件、机械、齿轮、轴 | 典型工业应用 |
| 热处理 | 退火、正火、淬火和回火 | 可提供的热处理状态 |
| 认证 | EN 10204 3.1/3.2, ISO 9001, ASTM | 提供质量认证 |
| MOQ | 10 tons | 最小起订量 |
合金钢坯 - 用于锻造和轧制的高强度热轧碳合金钢坯
合金钢方坯是现代冶金制造中的关键半成品，为汽车、建筑和重型机械领域的锻造、轧制和挤压工艺提供基础材料。这些热轧碳合金方坯具有卓越的机械强度、优异的淬透性和一致的尺寸精度，使其成为需要可靠原料进行下游加工制造的厂商的首选。
什么是合金钢方坯？
合金钢方坯是通过连铸或钢锭开坯工艺制造的半成品铸造产品，其横截面通常为方形或矩形，尺寸范围一般为100mm至300mm。这些方坯特意添加了铬、钼、镍和钒等合金元素，以增强普通碳钢无法达到的特定性能，满足 ASTM A29/A29M-20 和 EN 10083-1:2006 标准中规定的严格要求。
合金钢方坯技术规格
我们的热轧合金钢方坯符合国际冶金标准，碳含量根据牌号选择范围在0.15%至0.50%之间，按 ASTM A322-17 测试规程，抗拉强度值在550 MPa至850 MPa之间。标准尺寸包括120mm × 120mm、150mm × 150mm和200mm × 200mm横截面，长度可达12米，以满足多样化的制造需求。化学成分分析证书验证符合 EN 10204 Type 3.1 文档标准，确保整个供应链的可追溯性。
为什么选择我们的合金钢方坯
我们的生产设施采用先进的钢包精炼炉（LRF）技术，结合电磁搅拌系统，可将硫含量控制在0.015%以下，磷含量控制在0.020%以下，从而提升切削加工性和焊接性。每个生产批次均按照ASTM A388-17a要求进行超声波检测，确保内部健全且无中心偏析缺陷。我们维护通过ISO 9001:2015认证的质量管理体系，每批货物均随附工厂测试证书、尺寸检验报告和材料可追溯性文件。
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25公吨，但对于评估材料性能的新客户，我们可承接10吨的小批量试订单。超过100吨的订单可享受批量折扣，长期合作客户还可享受灵活付款条件。
你们提供材料测试证书吗？
是的，我们每批货物均提供全面的EN 10204 Type 3.1工厂测试证书，包括通过光电发射光谱法进行的化学成分分析、按照ASTM E8/E8M-21通过拉伸试验进行的力学性能验证，以及由SGS或Bureau Veritas等第三方检验机构认证的尺寸检验报告。
典型的交货时间是多久？
标准交货期为采购订单确认后25至35天（针对现货规格），而需要特殊热处理工艺的定制牌号可能延长至45天。针对紧急需求，可提供加急生产排程，并协调空运以满足关键项目时间节点。
能否按定制尺寸切割？
当然可以，我们的精密锯切设备可进行定制长度切割，公差为±5mm，而我们的加工中心在指定时可提供表面铣削服务，以达到Ra 3.2μm的表面粗糙度。我们还提供倒角、去毛刺和保护性涂层涂覆服务，以满足特定的搬运或存储要求。
获取合金钢坯的竞争力报价
立即联系我们的技术销售团队，获取面向您的锻造或轧制应用的优质合金钢坯工厂直销价格。我们的冶金工程师提供免费的材料选型咨询，对比铬钼、镍铬及其他合金体系，以在控制材料成本的同时优化性能。立即索取您的详细报价，包括化学成分建议、力学性能预测以及物流协调，实现与您生产计划的无缝衔接。
评分与评价
David Thompson
Canada
2025-09-16
Perfect Match for Mining Equipment Manufacturing
Supplied 32 tons of 150mm × 150mm high-strength billets for producing excavator bucket teeth. Material exceeded expectations with yield strength at 520 MPa and ultimate tensile at 815 MPa. Phosphorus kept below 0.017% ensured excellent weldability for our assembly process. Custom chamfering service eliminated our secondary machining step, saving approximately 12 hours per production batch. Delivery to Vancouver port completed in 30 days with all customs documentation prepared accurately. Technical data sheets included Charpy impact values at -40°C, critical for our northern mining applications. Outstanding supplier partnership.
John Anderson
United States
2025-10-03
Acceptable Quality After Initial Documentation Issues
Ordered 25 tons of 200mm × 200mm billets for our extrusion operation. Material quality was acceptable with tensile strength at 658 MPa meeting minimum requirements. Initial shipment arrived with incomplete mill certificates missing optical emission spectrometry data. Supplier responded within 48 hours and provided corrected documentation via email. Dimensional accuracy was within specification at ±4mm on length. Surface finish required more conditioning than anticipated, adding minor processing costs. Issue was resolved professionally and subsequent communication improved. Material performed adequately in production trials for non-critical applications.
William Taylor
Australia
2025-10-21
Outstanding Performance for Shipbuilding Project
This is our fourth order - 42 tons of 150mm × 150mm nickel-chromium alloy billets for propeller shaft forging. Consistent quality across all orders with carbon content maintained at 0.35% ±0.02%. Electromagnetic stirring process eliminates center segregation issues we experienced with other suppliers. Delivered to Melbourne in 26 days via container shipment. Metallurgical consultation provided by their engineers helped optimize our heat treatment cycle, reducing processing time by 15%. Protective coating prevented rust during sea transport. Highly recommended for marine-grade applications requiring superior mechanical properties.
Carlos Silva
Brazil
2025-11-08
Reliable Supply for Agricultural Machinery Production
Procured 30 tons of 120mm × 120mm billets for our tractor component manufacturing. Material certificates showed compliance with ASTM A322 standards. Tensile strength averaged 695 MPa across tested samples. Pricing was 8% lower than our previous Brazilian supplier while maintaining comparable quality. Shipping coordination to Santos port was handled professionally. Minor issue with one heat showing slightly higher sulfur (0.019% vs specified 0.015% max) but still within acceptable range for our application. Would order again for non-critical components.
Ahmed Al-Hassan
UAE
2025-11-25
Premium Chromium-Molybdenum Billets for Oil Field Equipment
Supplied 18 tons of 150mm × 150mm chromium-molybdenum alloy billets for manufacturing drill collar components. Hardenability testing showed consistent Jominy curves across all heats. Vanadium content at 0.08% provided the fine grain structure we required for impact resistance in downhole applications. Custom length cutting to 3.2 meters was executed with ±3mm tolerance. Bureau Veritas third-party inspection confirmed all specifications. Delivered to Jebel Ali port in 29 days with proper export documentation. Excellent communication throughout the procurement process.
Robert Schmidt
Germany
2025-12-08
Good Value Billets for Heavy Machinery Parts
Ordered 22 tons of 200mm × 200mm alloy billets for gear blank production. Material met ASTM A29 specifications with carbon at 0.42% and nickel at 0.35%. Price was competitive compared to five other European suppliers we contacted. Delivery took 38 days, slightly longer than the 35-day estimate, but quality compensated for the delay. One bundle had minor surface scaling that required additional grinding, reducing usable yield by approximately 1.5%. Overall satisfactory for the price point. Mill test certificates were comprehensive and accurate.
James Wilson
United Kingdom
2025-12-23
Superior Quality Billets with Complete Documentation
Purchased 35 tons of 120mm × 120mm billets for our rolling mill operation producing construction rebar. EN 10204 Type 3.1 certificates provided complete traceability with heat numbers matching each bundle. Sulfur content at 0.012% and phosphorus at 0.018% ensured excellent machinability. SGS inspection report included dimensional tolerances within ±2mm. Lead time was 31 days as promised. Technical support team helped us select the optimal carbon content (0.28%) for our specific rolling parameters. Already planning our next 50-ton order.
Michael Chen
Singapore
2026-01-07
Excellent 42CrMo4 Billets for Automotive Components
Ordered 28 tons of 150mm × 150mm alloy steel billets (42CrMo4 grade) for our crankshaft forging line. Chemical analysis showed chromium at 1.08% and molybdenum at 0.21%, perfectly matching EN 10083-1 requirements. Ultrasonic testing certificates confirmed zero internal defects. Tensile strength tested at 782 MPa, exceeding our 750 MPa specification. Delivery completed in 27 days to our facility. Surface quality was outstanding with minimal decarburization. This material significantly reduced our forging rejection rate from 3.2% to 0.8%.
了解供应商
可定制
超低价
$485
1-49 吨
基准价
$465
50-99 吨
4.1% 优惠
$455
≥100 吨
6.2% 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
