Delivery Time:Within 30 days after order confirmed
Certification:ISO 9001:2008, CE

42CrMo4 ST52.3 Mild Steel Tubing / Honed Seamless Alloy Steel Tubes ASTM A519 DIN2391

Quick Detail:

Products: Honing tubes for hydraulic cylinder

Standard: DIN2391-2, ST52.3, EN10305-1 E355, C35E, C45E, 25CrMo4, 42CrMo4, ASTM A519 SAE1020, SAE1026, SAE1045, SAE4130, SAE4140 etc.

SIZE:(mm)

OD: 45mm ~ 500mm
WT: 3mm ~ 50mm

Description:

We are specialized in producing welded steel pipe and seamless steel pipe. Our factory has been established for more than 12years. Our business has got a great improvement.  We believe that: “quality and service win the customers”. Welcome customers all over the world come to our company to give guidance for development. 

1, Honing / Honed tube for hydraulic cylinder
2. Standard&material: DIN2391-2, ST52.3, EN10305-1 E355, C35E, C45E, 25CrMo4, 42CrMo4, ASTM A519 SAE1020, SAE1026, SAE1045, SAE4130, SAE4140 etc.
3. Manufacture process: Cold-drawn, cold rolled
4. Method of internal surface treatment: Honed
5. Delivery condition: BK. BKW, BKS, GBK, NBK
6. Roughness of internal surface: 0.4um max.
7. Straightness: 0.5mm/1000mm max
8. Tolerance of ID: H7, H8, H9, H10
9. Tolerance of W. T: 5%
10. Packing: Standard export packing or wooden box
11. Marking or seal, oil-coating, end-protection to be confirmed.

Specifications:

ID / MM	H7	H8	H9	H10
30< ID≤ 50	+0.025/-0	+0.039/-0	+0.062/-0	+0.100/-0
50< ID≤ 80	+0.030/-0	+0.046/-0	+0.074/-0	+0.120/-0
80< ID≤ 120	+0.035/-0	+0.054/-0	+0.087/-0	+0.140/-0
120< ID≤ 180	+0.040/-0	+0.063/-0	+0.100/-0	+0.160/-0
180< ID≤ 250	+0.046/-0	+0.072/-0	+0.115/-0	+0.185/-0
250< ID≤ 315	+0.052/-0	+0.081/-0	+0.130/-0	+0.210/-0
315< ID≤ 400	+0.057/-0	+0.089/-0	+0.140/-0	+0.230/-0
400< ID≤ 500	+0.063/-0	+0.097/-0	+0.155/-0	-

Material	Requirement of mechanical  properties
BK	BKW	BKS	Normalized
T. S / Mpa Mpa min	E / % % min	T. S /Mpa Mpa min	E / % % min	T. S / Mpa Mpa min	Y. S / Mpa Mpa min	E / % % min	T. S /. Mpa Mpa min	Y. S / Mpa Mpa min	E / % % min