ASTM A53 GB/T Cold Rolled Precision Seamless Steel Tube

• Type: Seamless
• Technique: Cold Rolled
• Material: Precision Seamless Steel
• Surface Treatment: Black/Varnishing/Polished/Antiseptical/Oiled......
• Usage: Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose
• Section Shape: Round
• Transport Package: Snakeskin Bag/Wooden Carton
• Specification: ID/OD: plus or minus 0.025 mm
• Trademark: HYT
• Origin: China
• HS Code: 7304319000
• Production Capacity: 600000 Tons Per Year

Product Description

Company can produce outer diameter 4mm-273mm, high precision cold drawn steel tube, cold-rolled steel tube, precision steel pipe, stainless steel tube, stainless steel tube wall thickness 0.1mm-25mm, accuracy up to /+0.025 mm, roughness of 0.2. 

 

It is mainly used in hydraulic system pipes, automobile manufacturing pipelines, military industry, construction machinery, railway locomotives, aerospace, shipbuilding, petrochemical, power plants, boiler equipment, etc..

 

There are 6 main characteristics of our product: 

1. There is no oxide layer on the inner wall and outer wall. 

2. No leakage under tremendous pressure. 

3. High accuracy. 

4. High finish. 

5.Cold bending without deformation. 

6.No combustion, shrinkage, flattening, no cracks.

 

production standards: 

GB/T 3639;GB/T 1591;GB/T 699;DIN2391;EN10305-1;ASTM A519

 

condition of delivery :

condition of delivery	Code	Explain
Cold drawing or cold rolling / hard	+C	Final cold drawing or cold rolling without heat treatment
Stress relieving annealing after cold drawing or cold rolling	+SR	After final cold drawing or cold rolling, the steel tube is eliminated by   stress annealing
annealing	+A	After final cold drawing, the steel tube is annealed
normalizing	+N	After final cold drawing, the steel pipe is normalized

20#,45#, Q345B,Q345D,25Mn,27SiMn,E355,SAE1026,STKM13C, E460, 4130, 4140

Chemical composition:

	Chemical composition, %
steel grade	C	Si	Mn	P	S	Cr	Ni	V	Al
				≤					≥
20#	0.17-0.24	0.17-0.37	0.35-0.65	0.035	0.035	0.250	0.250	/	/
45#	0.42-0.50	0.17-0.37	0.50-0.80	0.035	0.035	0.250	0.300	/	/
Q345B	≤0.2	≤0.5	1.00-1.60	0.030	0.030	0.300	0.250	0.08	/
Q345D	≤0.2	≤0.5	1.00-1.60	0.030	0.030	0.250	0.250	0.150	0.015
25Mn	0.22-0.29	0.17-0.37	0.70-1.00	0.035	0.035	/	/	/	/
27SiMn	0.24-0.32	1.10-1.40	1.10-1.40	0.035	0.035	0.300	0.300	/	/
E355(ST52)	≤0.22	≤0.55	≤1.6	0.025	0.025	0.250	0.250	/	/
SAE1026	0.22-0.28	0.15-0.35	0.60-0.90	0.040	0.050	/	/	/	/
E460	≤0.22	≤0.60	1.20-1.60	0.030	0.030	0.300	0.800	0.20	0.02
4130	0.28-0.33	0.15-0.35	0.40-0.60	0.040	0.040	0.80-1.10	/	/	/
4140	0.36-0.43	0.15-0.35	0.75-1.00	0.040	0.040	0.80-1.10	/	/	/

 

Mechanical property

steel grade	Delivery status
	+C		+SR				+A		+N
	Rm/Mpa	A/%	Rm/Mpa	Rel/Mpa	A/%	KV2/J	Rm/Mpa	A/%	Rm/Mpa	Rel/Mpa	A/%	KV2/J
20(ST45)	550	5	520	375	12	-	390	21	440~570	255	21	-
45	645	4	600	450	6	-	590	14	540	340	18	-
Q345	680	8	580	450	10	27	450	22	490~630	355	22	34
25Mn(SAE1026)	650	6	560	430	10	-	430	20	460	300	20	-
E355(ST52)	680	8	580	450	10	27	450	22	490~630	355	22	34
27SiMn	750	4	650	520	8	-	600	10	650	430	14	-
E460			690	620	13

 

Note: Rm: tensile strength;  Rel: lower yield strength;  A: elongation;

KV2: shock absorption energy.

 

Q345 shock absorption energy in accordance with B, C, D, E, respectively, corresponding to  20°C,0°C,-20°C,-40°C.

 

size range of cold drawing and cold rolling (unit: mm)

ID	Thickness
	3.5	5	6	7.5	10	12.5	15	17.5	20	22.5	25
40
45
50
50.8
55
60
63
65
70
75
76.2
80
85
88.9
90
95
100
101.6
105
110
114.3
115
120
125
127
130
135
140
145
150
152.4
155
160
165
170
175
177.8
180
185
190
200
210
220
230
240
250

* intermediate specifications and inner diameters greater than 250mm specifications can also be customized

Seamless Steel Tube Order Details

MOQ	1 ton
Sample	Sample Available
Payment Terms	L/C,T/T
Trade Term	FOB, CFR, CIF
Port	Shanghai, Tianjin, Qingdao
Package	Packed in bundles Protect by wood at both ends Packed in wooden box Packing oil pipes
Marking	(a) without marking, (b) marked with colored stripes on the tubes (tube bundles), (c) marked with spray either by a white or black color using Inkjet, (d) marked by stamping the data (this applies to OD > 22 mm and WT >2.3 mm).
Surface Protection	Inter paper available PVC protecting film available Tip: While ordering, it is necessary to agree upon the methods and means of temporarily protecting the surface of the tubes during transportation and storage.

About HYT

 

Jiangsu HYT, founded in 2015, is a wholly-owned subsidiary of WuxiLusheng Special Steel Co, Ltd which is responsible for overseassales and market exploitation of various kinds of steel pipes.
Our Group, certified by ISO and SGS, is a high-tech enterprise integrating research, development, production and sales of steel pipesmade of stainless steel, carbon steel and alloy steel. HYT owns independent steel pipe factories with 50+ high precision cold drawingand cold rolling production lines, which can meet customers' requirements on the quality, quantity, precision and customization of steel pipes.

Since 2015, HYT has actively cooperated with many domestic steel mills. HYT regularly exchange steel technology with these mills and make progress from this. ln the process of communicating with customers, we carefully listen to customers' requirements and produce steel products as customers' demands. Under necessary circumstances, HYT is willing to help customers find suitable steel mill to produce some special products to save time and cost for customers because we have the reliable resources of still mills to prevent you to be cheated.
Our Group provides customers with high-quality products and services with advanced equipment, strong technical strength and a high sense of social responsibility. Since 2015, Our products have been exported globally, including Germany, France, the United States, Japan, Russia, ltaly, Turkey, the United Arab Emirates, Australia, Saudi Arabia, Ukraine, Thailand, Viet-nam, Singapore, Spain, lreland, India, South Africa, Mexico, etc.
We sincerely hope to establish a long-term and extensive strategic partnership with ourcustomers for mutual benefit and common development!
We also properly save some past conversation screenshot(Customers' names are coded toprotect privacy) to record the feedback of our old customers when they have used HYT steel pipe. HYT pays more attention to customers' feedback because we trust only in this way can we know the pain spot of steel pipe industry and better serve our customers.

FAQ

What's keeping you from placing your order?

1,Who is HYT
HYT is a manufacturer specializing in steel exporting business for 8 years. HYT main steel products include plate, sheet, coil, strip, bar, pipe, tube, etc. made of stainless steel, carbon steel and alloy steel.
 
2,How long is HYT steel pipe delivery time?
lt takes around 3-5 days for the regular models, and 7 to 10 working days for the special sizes and processing. lt is based on the order quantity and requirement.
 
3,Does HYT provide samples? Is it free or extra?
Yes, we would send you small samples for free; the size is 80x110mm. And the sample book is 250x350mm. Most of models have stock, and also can be customized and need around 4 to 6 days.
 
4,What are terms of delivery and payment?
Accepted Delivery Terms: EXW,FOB,CFR,CIF,DDU,DDP
Accepted Payment Terms: T/T, L/C, D/P, etc.
 
5,Does HYT have any assurance for steel products?
You will get a physical and mechanical test report of the product that you order from steel mill. In addition, you can enjoy free exchange and return policy due to steel product quality and after-sales warranty for 1 year.
 
6,Does HYT offer a service for customized products?
Yes, we can produce customized products exactly as your specification and CAD drawing.