Product Details

ST52 Q345B 1020 Carbon steel tube BK Tube

Standard executived: GB/G 3077 GB/T 8163-2008 GB/T 3639

Materials:16Mn/Q345B/ST52 1020/20#/ck22/s20c

Chemical component:

ST52/Q345B	C	MN	SI	P	S	V	NB	TI
chemical element contents	max0.20	1.20-1.60	max0.55	max0.04	max0.04	0.02-0.15	0.015-0.060	0.02-0.20

20steel	C	MN	SI	P	S	V	NB	TI
chemical element contents	max0.20	0.35-0.65	max0.55	max0.04	max0.04	0.02-0.15	0.015-0.060	0.02-0.20

material we ever used:

Q345B

C	Mn	Si	P	S	Cr	Ni	Cu	heat NO.
0.17	1.46	0.46	0.017	0.013	0.07	0.02	0.04	13503562-4

20# Steel

C	Mn	Si	P	S	Cr	Ni	Cu	heat NO.
0.20	0.52	0.22	0.017	0.013	0.07	0.02	0.04	5510133

Outside diameter:15-80mm

Wall Thickness:2mm~12mm

Length:3m-12m,also can be manufactured according to customers' requirements

Type:Seamless(cold rolled and cold drawn)

Ends:Plain ends or bevel ends

Coating for protection:anti-rust oiled or varnish,also can be required according to customers' requirements

Test equipments:X-ray detector,ultrasonic wave detector,hydrostatic tester,tension tester,metallurgical analyzer and physical&chemical lab,etc.

Delivery condistion:Stress reliving annealing, annealing

Application: tube bending for structure and machinery parts

Common pipes

OD 15mm to 80mm

thickness 1mm to 14mm,

Special pipes

Includes hexagonal pipes, lemon pipes, rectangular pipes, angle pipes, square pipes and many other special shape pipes. We can also produce the special pipes as the customers’ requirements.

We have the ability to create varies of moulds by ourselves.

Packaging & Shipping

FAQ

Q:What's the differences between Q345B and 20# steel?

A:The high component of Mn 1.00-1.60%. Higher strength than 20# steel .