Product Details

PRODUCT PROCESS

Xinpeng are equipped with JLB250T hydraulic cold drawn set, LD120 cold rolling set, annealing furnace, honed and SRB machine, polishing machine, and some other advanced testing machine to make sure high quality of products.

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

Mechanical Property

Delivery Condition	Cold drawn+stress-relieved(BK+S)(SR)			Cold finished(hard)(BK)
Steel Grade	Tensile strength (Rm Mpa)	Yield strength (ReH Mpa)	Elongation A5%	Tensile strength (Rm Mpa)	Elogation A5%
20#	≥520	≥375	≥15	≥550	≥8
45#	≥600	≥520	≥10	≥640	≥5
16Mn(Q345B Q345D)	≥600	≥520	≥14	≥640	≥5
25Mn	≥600	≥510	≥15	≥640	≥5
27SiMn	≥760	≥610	≥10	≥800	≥5
St45	≥520	≥375	≥15	≥550	≥5
E355(St52)	≥600	≥520	≥14	≥640	≥5
SAE1026	≥600	≥510	≥15	≥640	≥5

1.Hydraulic Cylinder Tube------Main products of Xinpeng

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 work and get the mechanical property of the clients need and extended the life of the hydraulic cylinder.

2.Cold finished tube---- Widely Used. Processing range 30-300mm, biggest length is 11M.

3.SRB tube ----- used in Elevatorbuffer and Hydraulic Cylinder .This kind tube have a better roughness inner the tube, ra0.2-0.4um and can use directly in the hydraulic cylinder tube. Range: ID 50-250mm and Length can work at most 6M.

Packing

1. bundle packing

2. marking as per customer's requests

3. paint on the pipe as per customer request

4. pipe caps as customer request

Delivery condition

1. NBK(+N)

after cold forming, eventually above phase transition point, in a protective atmosphere of annealing oxidation medium

2. GBK(+A)

after cold forming, annealing in non oxidizing medium protective gas

3. BK(+C)

the final heat treatment after cold forming, therefore small steel pipe plastically, the plastically degree does not guarantee

4. BKW(+LC)

after final heat treatment, a tiny cold drawing deformation, continue again when machining steel pipe allowed inside certain limits cold deformation(bending, flaring)

5. BKS(+SR)

have a stress relief after cold forming, heat treatment, steel pipe can be carried out within a certain limit in the appropriate processing.

Application

Widely used in hydraulic system with precision steel tube, injection molding machine with precision steel tube, hydraulic press with precision steel tube, shipbuilding with steel tube, EVA foaming, hydraulic machinery, hydraulic cutting machine, shoe making machinery, hydraulic equipment, high pressure tubing, hydraulic tubing, card sets of joints, pipe joints, rubber machinery, forging machinery, casting machinery, engineering machinery, automotive high pressure steel pipe concrete pump, sanitation vehicle, automobile industry, shipbuilding industry, metal processing, and other field.

FAQ

Q: what about your standard delivery date

A: 30 days after receiving deposit

Q: How about your capacity?

A: For steel pipes, 500 tons per month, 6000 tons per year.

Q: what about your package

1. bundle packing

2. marking as per customer's requests

3. paint on the pipe as per customer request

4. pipe caps as customer reques

Q: What is your main market &main customers

A: We have 23years experience on steel pipes .Our main market includes China, Korea, Pakistan etc.