Product Details

Product name: astm a53 grb carbon seamless steel pipe

1.Raw material:20#.45#,Q345,16Mn,25Mn,27SiMn

2.ID:30-250mm

3.ID tolerance:H7,H8,H9

4.Length: 6m(max)

5. Machining allowance:0.5-1.5mm

6.Wall thickness:10%×ID

Our main products

1 Hydraulic Cylinder Tube

Used in the hydraulic cylinder of the heavy machinery, Cranes, excavator also forklifts. We can work and get the mechanical property of the clients need.

2. SRB tube

Directly used in Elevatorbuffer and Hydraulic Cylinder .This kind tube have a better inner roughness , ra0.2-0.4um and can use directly in the hydraulic cylinder tube. Length can work at most 6M.

3. Cold finished tube

Widely Used. Processing range 30-300mm, biggest length is 11M.

Main Features: high precision, excellent brightness, no oxidization on the outer and inner walls after heat treatment, high cleanness inside wall. The steel tube is able to stand high pressure.

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

Packaging

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

Services

1.passing ISO9001 system verified and in high quality control

2.with more than 20 years trading experience

3.alibaba trade assurance supplier

ducts with superior quality and competitive price

5.treating every client sincerely to satisfy them

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.

FAQ

Q: What about your payment term?

A: Usually T/T or L/C or as client's request

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 requests

Q: If products have some quality problem,how would you deal with?

A: We will responsible for all of our quality problems and we are trade assurance supplier.