steel pipe manufacturer q345d carbon steel

steel pipe manufacturer q345d carbon steel   Product Description    The difference between precision steel pipe and seamless pipe 1. the seamless steel tube with obvious difference is that dimensional accuracy, can be up to 0.1mm.  2. high precision steel pipe diameter surface finish, the customer without processing can be used directly and ordinary seamless steel tube to the customer and lather, polishing processing.
   Features
 1. The smaller outer diameter
  2. High precision to do small batch production
  3. Cold drawn finished products of high precision, good surface quality
  4.The steel pipe transverse area is more complex
  5. Steel pipe is superior performance, dense metal      Hydraulic pneumatic liner actuator standard/size/precise

Processing the form	Cylinder diameter	Length	Straightness	Dimensional accuracy	Wall thickness	Inner hole roughness
cold drawn	48~325	≤12m	0.3~0.8mm/m		±10%	0.8~1.6µm
honing	48~325	≤10m	0.3~0.8mm/m	H8~H9	±10%	0.3~0.8µm
roling	50~250	≤ 9m	0.3~0.8mm/m	H7~H9	±10%	0.01µm

  Dimension tolerance  

ID size	ID deviation (mm)
	H7	H8	H9	H10
30	+0.021 0	+0.033 0	+0.052 0	+0.084 0
>30~50	+0.025 0	+0.039 0	+0.062 0	+0.100 0
>50~80	+0.030 0	+0.046 0	+0.074 0	+0.120 0
>80~120	+0.035 0	+0.054 0	+0.087 0	+0.140 0
>120~180	+0.040 0	+0.063 0	+0.100 0	+0.160 0
>180~250	+0.046 0	+0.072 0	+0.115 0	+0.185 0
>250~315	+0.052 0	+0.081 0	+0.130 0	+0.210 0
>315~400	+0.0527 0	+0.089 0	+0.140 0	+0.230

       Products Display  Main Features: high accuracy, 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. No deformation after codl bending, no crack after flaring and flattening. The complicated geometrical forming and machining can be realizaed. Color of tube: gray with white.                        Cold Rolling Tube                                                    Cold Drawn Tube                                    SRB Tube                                                             Hydraulic Cylinder Tube Application 1)  Fuel injection lines/nozzles for deisel or gasoline engine; 2)  Compressed natured gas CNG tube 3)  Drive trasnmission: steering column elements 4)  Gear shafts, hand brake, front axles, airbag inflators, stabilizers, seat fasteners, front-wheel drive shafts 5)  Mechanical structure pipe parts in automobile,motorcycles and vehicle 6)  Hydraulic circuits, pneumatic lines and hydraulic suspension 7)  Hydraulic cylinders Packaging & Shipping As per to customers' request, we expoer the goods from QINGDAO or YANTAI port. Good Packing is suitable for long distance ocean shipment 1. Goods are packed with export standing standard.
 
2. Goods will be delivered on time.
 
3. Goods can arrive at the destination safely.
  FAQ  1, What is your main products? Our main products cold drawn tube, cold rolled tube, hydraulic cylinder pipe, SRB honed Tube  2, What is the MOQ?
5Ton
3, How about delivery time?
The time of delivery is about 20 days after we received the deposit.
4, What is the shipping port?
We ship the goods via Qingdao and Yantai
5, What is your payment terms?
We accept 30% TT in advance, 70% balance before shipment. Our Services 1. 24 hours technical support through email
2. Goods will be delivered safely on time
3. Life long time follow up service