Changzhou Chengxin Metal Products Co., Ltd. >> Seamless Tube Suitable for Honing

Seamless Tube Suitable for Honing

Name: Seamless Tube Suitable for Honing
Brand: China-Manufacturer-Directory.com
SKU: 698184995
Availability: InStock
Rating: 4.7 (102 reviews)

Supplier:	Changzhou Chengxin Metal Products Co., Ltd.
Price:	Negotiable/Ton
Min Order:	3/Ton
Quantity::
Trade Terms:	FOB,CFR,CIF

Product Specifications

Markets:	North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe
W. T:	4mm-40mm
Cross-Section Shape:	Round
Connection Type:	Seamless
Standard:	DIN
Morphology:	Spare Parts for Hydraulic Cylinder
Type:	Machinery
Diameter:	404-40040

Product Description

1. Commodity: Seamless tube ready for honing
2. Standard&material: EN10305-1 E355, C35E, C45E, 25CrMo4, 42CrMo4,
ASTM A519 SAE1020, SAE1035, SAE1045, SAE1026, SAE4130, SAE4140, DIN2391-2 ST52, ST52.3, ST52.4, etc.
3. Size range: 50mm*40mm-480mm*420mm
4. Manufacture process: Cold-drawn, cold rolled
5. Delivery condition: +C, +LC, +SR, +A, +N.
6. Roughness of internal surface: 0.125um - 4um.
7. Straightness: 0.5mm/1000mm max
8. Tolerance of ID: As per customer's requirement.
9. Tolerance of W. T: +/-5%
10. Packing: Standard export packing

Material	Chemical composition requirement
	C (%)	Si (%)	Mn (%)	P (%)	S (%)
10#	0.07-0.14	0.17-0.37	0.35-0.65	0.030 max	0.025 max
20#	0.17-0.24	0.17-0.37	0.4-0.7	0.030 max	0.025 max
35#	0.32-0.39	0.17-0.37	0.5-0.8	0.030 max	0.025 max
45#	0.42-0.50	0.17-0.37	0.5-0.8	0.030 max	0.025 max

Material	Mechanical properties
	BK (cold-drawn/hard)		BKW(cold-drawn/soft)
	Tensile strength Mpa min	Elongation % min	Tensile strength Mpa min	Elongation % min
10#	410	6	375	10
20#	510	5	450	8
35#	590	4	550	6
45#	645	4	630	5
1. Heat-treating of tubes like annealing, normalizing, stress-relieving can be negotiated for supply. 2. Tubes with other materials like ST52.4 can be negotiated for supply.

OD mm	Allowed depth of internal imperfection
	Scratch, indents
OD ≤ 63mm	20um max
63mm< OD≤ 112mm	40um max
OD> 112mm	50um max

Designation	Allowed roughness of internal surface
	a	b	c	d	e	f
Nominated value	0.125um	0.2um	0.4um	0.8um	1.6um	3.2um
1. Tolerance can be +25%/-0 2. Roughness of internal surface of cold-drawn seamless tubes should reach " f" , 3.2um-4um

I. D mm	Size tolerance and its designation
	H8	H9	H10
3< I. D≤ 6	+18um/-0	+30um/-0	+48um/-0
6< I. D≤ 10	+22um/-0	+36um/-0	+58um/-0
10< I. D≤ 18	+27um/-0	+43um/-0	+70um/-0
18< I. D≤ 30	+33um/-0	+52um/-0	+84um/-0
30< I. D≤ 50	+39um/-0	+62um/-0	+100um/-0
50< I. D≤ 80	+46um/-0	+74um/-0	+120um/-0
80< I. D≤ 120	+54um/-0	+87um/-0	+140um/-0
120< I. D≤ 180	+63um/-0	+100um/-0	+160um/-0
180< I. D≤ 250	+72um/-0	+115um/-0	+185um/-0

Changzhou Chengxin Metal Products Co., Ltd specialize in manufacturing of precision seamless steel tubes, hydraulic cylinder tubes and hydraulic cylinder barrels.
Our manufacturing capacity is a follows:
1. Cold rolled tube suitable for honing: 40mm*32mm-140mm*120mm
2. Cold drawn tube suitable for honing: 82mm*70mm-480mm*420mm
3. Honed tube for hydraulic cylinder: 40mm*32mm-1200mm*1000mm
4. Skived&roller burnished tube: 82mm*70mm-340mm*300mm
5. Cylinder barrels according to drawings.
The materials include DIN2391-2 ST52, ST52.3, EN10305-1 E355, C35E, C45E, 25CrMo4, 42CrMo4, ASTM A519 SAE1020, SAE1026, SAE1045, SAE4130, SAE4140, etc.
Based on our expertise on hot reolled, , hot expanded, chain cold drawn seamless steel pipes/tubes, we are also providing strategic sourcing service of other seamless steel pipes and tubes for customers from other industry like oil&gas industries, pressure vessels, ship building, and other industries.
We welcome business contact, information requirement, or inquiry from customers all over the world.