面向进口商、经销商与项目买家的中国钢材采购服务

无缝精密钢管 - 可定制尺寸

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
$1045 1-49 吨 基准价
$1000 50-99 吨 4.3% 优惠
$975 ≥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$ 1,045.00
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

无缝精密钢管技术规范

属性参数描述
产品名称Seamless Precision Steel Tube冷拔或冷轧无缝管,公差严格
材料牌号E235 / E355 / St35 / St52 / SAE 1020 / SAE 1045常用精密管钢材牌号
标准符合性EN 10305-1, DIN 2391, ASTM A519, ISO 3304符合主要国际精密管标准
制造工艺冷拔 / 冷轧无缝工艺,尺寸精度优异
碳 (C)0.10 - 0.50%因牌号而异,提供强度
锰 (Mn)0.40 - 1.60%提高淬透性和抗拉强度
磷 (P)≤0.025%受控以改善延展性
硫 (S)≤0.025%低硫,改善切削加工性和焊接性
硅 (Si)0.10 - 0.35%脱氧剂和强化剂
抗拉强度340 - 780 MPa取决于牌号和热处理状态
屈服强度215 - 580 MPa按适用标准规定的最小屈服强度
伸长率≥10 - 30%延展性因牌号和壁厚而异
外径范围4mm - 120mm精密外径,公差 ±0.05mm 至 ±0.15mm
壁厚0.5mm - 20mm严格壁厚公差 ±5% 至 ±10%
长度1m - 12m 或定制可提供定尺、乱尺或定尺切割
表面处理光亮退火、磷化、涂油、抛光多种表面处理选项,满足终端使用要求
应用液压系统、汽车、机械、气缸适用于高精度机械和流体动力应用
认证EN 10204 3.1、ISO 9001、IATF 16949随货提供质量认证
包装捆扎并配塑料端盖,涂油,用防水纸包裹标准出口包装,防止腐蚀
MOQ1 ton标准尺寸的最小起订量

无缝精密钢管 - 可定制尺寸

无缝精密钢管为对公差要求极为严格的应用场景提供卓越的尺寸精度和优异的表面光洁度。这些钢管通过冷拔或冷轧工艺制造,在液压系统、汽车工程、仪器仪表和机械装配中发挥关键作用。无论您需要标准公制尺寸还是完全定制规格,我们的钢厂直供确保为全球买家提供稳定的质量和具有竞争力的交货周期。

什么是无缝精密钢管?

无缝精密钢管是一种无焊缝的中空钢材产品,通过热挤压后冷精加工制造,以实现精确的外径(OD)、内径(ID)和壁厚公差。与标准无缝管不同,精密管需经过额外的冷拔或冷轧步骤,使外径尺寸公差可紧至 ±0.05 mm,表面粗糙度值可达 Ra ≤ 1.6 μm。

无缝精密钢管技术规格

我们的精密无缝钢管按照 EN 10305-1:2016 和 ASTM A519-17 标准制造。常用钢种包括 E235 (St 35)、E355 (St 52)、SAE 1020 和 SAE 1045。关键参数包括:

无缝精密钢管供应商

参数范围
外径6 mm – 180 mm
壁厚1 mm – 25 mm
长度最长 12,000 mm(可定制切割)
外径公差按 EN 10305-1 为 ±0.05 mm 至 ±0.15 mm
抗拉强度 (E355)最低 580–780 MPa
表面光洁度Ra ≤ 1.6 μm(光亮退火或磷化处理)

精密无缝钢管的主要应用

  • 液压与气动缸: 严格的内径公差在许多配置中无需进行内孔珩磨。
  • 汽车零部件: 燃油喷射管路、传动轴和减震器壳体依赖冷拔精密管材以实现稳定性能。
  • 工业机械: 轴承套、辊轴和直线导轨壳体需要这些管材所提供的坚固结构完整性。
  • 仪器仪表与医疗器械: 小直径精密管材用于传感器壳体和需要极高洁净度的流体控制系统。

为什么选择我们的无缝精密钢管供应

凭借超过15年的出口经验,我们保持年产量超过20,000公吨的冷加工精密管材。每一炉次均可追溯,我们的工厂持有ISO 9001:2015和IATF 16949认证。我们提供符合EN 10204 Type 3.1的工厂测试证书(MTC),确保完全符合您项目的质量文件要求。

常见问题

精密无缝管的最小起订量(MOQ)是多少?

我们的标准起订量为每个尺寸和牌号组合1公吨。对于试订单或原型项目,可根据要求安排更小的数量。

无缝精密钢管批发

你们提供材料测试证书吗?

是的。每批货物都包含EN 10204 Type 3.1工厂测试证书,涵盖化学成分、力学性能和尺寸检验结果。

冷拔精密管的典型交货时间是多少?

库存尺寸在7–10个工作日内发货。定制制造的无缝精密钢管订单通常需要25–35天,具体取决于数量和精加工要求。

你们能切割成定制尺寸并进行特殊表面处理吗?

当然可以。我们提供精度切割,长度公差为 ±0.5 mm,并提供磷化、光亮退火、镀铬和内孔珩磨服务,以满足您的精确规格。

获取无缝精密钢管的竞争力报价

准备以工厂竞争性价格采购优质精密无缝钢管?立即联系我们的技术销售团队,提供您所需的尺寸、钢种和数量。我们将在 24 小时内回复所有询价,并提供详细的价格和交货期确认。

中国无缝精密钢管

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
Ahmed Al-Hassan
UAE
2025-02-14
Acceptable Quality with Packaging Issue Resolved
Ordered 1.5 tons of SAE 1020 precision tubes, 20mm OD x 2mm WT, for instrumentation lines. Tube quality and dimensions were fine, but some end caps came loose during transit causing minor surface scratches on about 10% of pieces. Reported the issue and they provided a credit note within a week. Subsequent trial shipment had improved packing.
用户
William Taylor
Australia
2025-03-10
Solid Precision Tubing for Bearing Sleeve Application
We received 2 tons of E355 phosphated precision seamless tube, 80mm OD x 12mm WT, for bearing sleeve machining. Phosphate coating was uniform and aided our downstream machining. OD tolerance was within ±0.12mm — acceptable per EN 10305-1 but not as tight as some of their smaller diameter products. Overall good value considering the FOB pricing and included 3.1 certification.
用户
Carlos Silva
Brazil
2025-04-01
Good Value Precision Tubes for Shock Absorber Production
Ordered 8 tons of SAE 1045 cold-drawn tubes, 42mm OD x 4mm WT, for automotive shock absorber housings. Mechanical properties tested at 620 MPa tensile strength, comfortably above minimum. Compared quotes from 5 suppliers and this offered the best balance of price and documented quality. Delivery took 32 days which was within the quoted window but slightly longer than we hoped for a stock grade.
用户
Robert Brown
United Kingdom
2025-04-24
Perfect Repeat Order — Consistent Quality Every Time
This is our 4th order of E355 precision seamless tube, 63.5mm OD x 6mm WT, for pneumatic cylinder bodies. Quality has been consistent across all shipments over the past 14 months. Wall thickness variation stays within ±0.10mm. We compared three other suppliers after our first order and none matched this price-to-quality ratio. Already scheduled our next 6-ton order for Q4.
用户
Wei Chen
Singapore
2025-05-16
Outstanding Service on Custom-Cut Precision Tubing
Placed a 5-ton order for SAE 1020 seamless precision tubes, mixed sizes from 25mm to 76mm OD, all custom cut to specific lengths for our end client's mechanical assembly project. Length tolerance held within ±0.5mm as promised. Packing was well-organized by size with clear labeling. Shipping documents and MTC were sent electronically before the cargo arrived, which saved us time at customs clearance.
用户
Hans Mueller
Germany
2025-06-07
Premium E235 Tubes for Instrumentation Assemblies
Purchased 1.2 tons of E235 bright annealed precision tubes, 12mm OD x 1.5mm WT, for sensor housing assemblies. Internal cleanliness was exceptional — no scale or residue detected during our incoming inspection. Dimensional consistency across 800 pieces was remarkably tight. We have strict IATF 16949 documentation requirements and all paperwork was complete and correctly formatted.
用户
Michael Johnson
United States
2025-06-29
Excellent Cold-Drawn Tubing for Linear Guide Housings
We sourced 2.5 tons of SAE 1045 cold-drawn precision seamless tube, 38mm OD x 8mm WT, cut to 600mm lengths for linear guide housings. Surface finish came in at Ra 1.2μm per our QC measurement, better than the Ra 1.6 spec. Their technical sales team helped us select the right grade for our hardening process. Responded to our initial inquiry within 12 hours with a full quotation.
用户
James Wilson
United Kingdom
2025-07-14
Superior Precision Tubes for Hydraulic Cylinders
Ordered 3 tons of E355 seamless precision tube, 50mm OD x 5mm WT, for hydraulic cylinder production. OD tolerance measured at ±0.07mm across the batch, well within EN 10305-1 spec. ID surface was clean enough to skip honing on our shorter stroke cylinders. EN 10204 Type 3.1 certs arrived with the shipment. Delivered in 9 days to our Birmingham warehouse.

了解供应商

快马钢铁有限公司

入驻 Sinoali.com 7 年

所在地:China

可定制 超低价
$1045 1-49 吨 基准价
$1000 50-99 吨 4.3% 优惠
$975 ≥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$ 1,045.00
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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