Product Details

Product Description

1.material: Grade20#,45#,Q345B,Q345D,25Mn,27SiMn

2.ID Tolerance: H8 H9

3.ID Roughness: ra0.4 micron(max)

4.Straightness: 1:1000 or customized

5.Length: Max 6M

6.Benefit: the roughness of internal can be Ra0.2~0.8

ID	OD	WT	ID	OD	WT	ID	OD	WT
63.5	76.2	6.35	88.9	101.6	6.35	114.3	127	6.35
63.5	82.55	9.525	88.9	107.95	9.525	114.3	139.7	12.7
76.2	88.9	6.35	101.6	114.3	6.35	127	139.7	6.35
76.2	95.25	9.525	101.6	9.525	6.35	127	152.4	12.7

Packaging & Shipping

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

Shipping:

within 30 days after receiving downpayment or as customer's requirement

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

Our Services

1.High precision: Xinpeng are equipped with JLB250T hydraulic cold drawn set, LD120 cold rolling set, annealing furnace, strong honed machine, polishing machine, lathe and any other kinds of testing machine.

2.Superior quality: Our materials mainly from some famous steel factories,such as BAO STEEL, Chengdu etc., which are best raw matirials factories in China.

3.Competitive price: some discount for repeat customers.

4.more than 20 years experience in steel trading

5.alibaba trade assurance supplier

Company Information

Located in Yantai, a beautiful coastal city in Jiaodong Peninsula, our company is in the (APEC) Science & Technology Industrial Park, urban area of Yantai, with convenient transportation.

Established in December 1992, with registered capital of 5 million yuan and plant and office space of 12,000 square meters, covering an area of 20,000 square meters , our company mainly produces various specifications of cold drawn,rolled precision steel tube,hydraulic cylinder tube and SRB Tube, which are widely used in such industries as hydro-cylinder, automobile, engineering machinery, textile machinery, printing machinery, oil drilling, etc. Our company is also the distributor of several domestic well-known steel tube plants in Shandong, and mainly distributes seamless steel tubes of all kinds of materials.

Pls contact us without hesitition if you are interests!