Product Details

ISO 9001 verified cold rolled honed seamless steel piping

1.Product Name: ISO 9001 verified cold rolled honed seamless steel piping

2.Outer Diameter: 30-250mm
3.Wall Thickness: 2-30mm
4.Material Grade: 20# 45# 16Mn 25Mn 27SiMn E355
5.Package: Standard export packing or as client’s request
6.Delivery Condition: BK/BKW/BKS/GBK/NBK
7.Delivery Time: Within 20-30 days after receiving payment or as client’s request
8.Trade Terms: FOB Yantai, Qingdao, or as client’s request
9.Payment Terms: T/T or L/C or as client’s request
10.Supply Ability: 500 metric tons/per month

Character of ISO 9001 verified cold rolled honed seamless steel piping:

Superior surface finish
Good physical property to sustain reasonable stress
Tight tolerance

Company introduction

Yantai Xinpeng Steel Pipe Co,.Ltd. has been specialized in steel piping line for more than ten years. Our company mainly produces various specifications of precision steel tube, which are widely used in hydraulic cylinder for automobile, engineering machinery, textile machinery, printing machinery, oil drilling and other field.

Dimensions tolerance

OD(mm)	ID(mm)	Tolerance
OD(mm)	ID(mm)	OD(mm)	ID(mm)	Wall thickness deviation(mm)	Ovality(mm)	Curvature(mm/m)
40-74	30-65	±0.01	-0.3,-0.5	≤0.5	≤0.1	0.3
74-98	65-85	±0.01	-0.4,-0.6	≤0.5	≤0.15	0.3
100-116	85-100	±0.02	-0.4,-0.6	≤0.6	≤0.15	0.3
124-134	110-115	±0.02	-0.6,-0.8	≤0.6	≤0.20	0.3
140-158	120-135	±0.02	-0.7,-0.9	≤0.8	≤0.20	0.3
165-176	140-150	±0.02	-0.7,-0.9	≤0.8	≤0.20	0.3
188-203	160-180	±0.02	-0.7,-0.9 (honed)	≤0.8	≤0.20	0.3

Chemical composition

Steel grade	Chemical composition
Steel grade	C	Si	Mn
20#	0.17-0.24	0.17-0.37	0.35-0.65
45#	0.42-0.50	0.17-0.37	0.50-0.80
16Mn	≤0.2	≤0.5	1.00-1.60
25Mn	0.22-0.29	0.17-0.37	0.70-1.00
27SiMn	0.24-0.32	1.10-1.40	1.10-1.40
SAE1026	0.22-0.28	0.15-0.35	0.60-0.90

Certificate

Passing ISO 9001 System, our products are in tight tolerance and high quality control to meet every client's request.

Customer & Supplier

We have regular supplier such as Baosteel, Zhongke innovation, PangangGroup, which assure our high quality material .
Just because the 100% quality guarantee material, all our products are popular at home and abroad, Doosan, Sinotruk, and many foreign companies in Australia, Ukraine, Korea, etc.

Package

1. standard export packing using plastic foam and wooden cartons

2. marking as per customer's requests

3. or as client's request totally

Application

ISO 9001 verified cold rolled honed seamless steel piping are widely used in hydraulic system with precision steel tube, engineering machinery, automotive high pressure steel pipe concrete pump, sanitation vehicle, automobile industry, shipbuilding industry, metal processing, and other field.

Main product

1.Seamless steel tube

Widely used in the hydraulic cylinder of the heavy machinery, Cranes, excavator also forklifts. Material is various, mainly STKM-13CT ST52 CK45 and 1020. We can also offer ascustomized seamless steel tube.

ld drawn/rolled pipes

Grade: 20# 45# 16Mn 25Mn 27SiMn E355 SAE1026

Standard: GB/T8713 GB/T3639 DIN2391 EN10305 ASTMA519

Range: 30-300mm

Length: 11m(max)

The cold process can change the thickness of tube to meet client's request and offer better mechanical property.

3. SRB&Honed Tube

ID Tolerance: H8 H9

ID Roughness: RA0.4micron(max)