Support Custom Alloy Steel Tube Q355 Q345 St52 Alloy High Strength Structural Round Steel Pipe

• Customization: Available
• Type: Seamless Steel Tube / Pipe
• Standard: AISI, ASTM, DIN, JIS, GB, BS
• Model NO.: Q355 Q345 ST52
• Composition: Alloys and Non-Ferrous Metals
• Technique: Hot Rolled
• Shape: Round
• Surface Treatment: Black
• Special Use: Pipeline Transport, Boiler Pipe, Hydraulic/Automob
• Application: Fluid Pipe, Hydraulic Pipe, Structural Pipe
• Invoicing: by Actual Weight
• Thickness: 4mm-150mm
• Length: 12m
• Tolerance: ±5%, ±1%
• Oiled or Non-Oiled: Non-Oiled
• Delivery Time: 7-20 Days
• Transport Package: Customized or Regular Shipping According to Custom
• Specification: OD 4-2420MM
• Trademark: MEIDE
• Origin: Shandong, China
• HS Code: 7304319000
• Production Capacity: 200000 Ton/Tons Per Month

Product Description

Product Description

Good mechanical properties, hot and cold processing properties, welding properties and corrosion resistance. Q345A steel and Q345C,D,E steel compared, low temperature impact test temperature is high, poor performance, containing harmful materials P,S quantity is higher than Q345C,D,E. Widely used in Bridges, vehicles, ships, buildings, pressure vessels and so on.

Chemical Composition (%)

Material	C	Si	Mn	P	S	Cr	Ni	Cu
Q345	0.2	0.5	1.7	0.035	0.035	0.3	0.5	0.3
Q420B	0.2	0.5	1.7	0.035	0.035	0.3	0.8	0.3
16Mn	0.22	0.55	1.6	0.025	0.025	0.3	0.3	0.4
Q390C	0.2	0.5	1.7	0.03	0.03	0.3	0.5	0.3

Mechanical property

Thickness (diameter, side length) t mm	Tensile strength σb Mpa	Yield point σs Mpa	elongation δ %
t≤16	470~630	≥345	≥20
16 < t ≤ 40	470~630	≥335	≥20
40<t≤63	470~630	≥325	≥19
63<t≤80	470~630	≥315	≥19
80<t≤100	470~630	≥305	≥19
100<t≤150	450~600	≥285	≥18
150<t≤200	450~600	≥275	≥17
200<t≤250	450~600	≥265	≥17

Product specification

INCH	OD	API 5L ASTM A53 A106 Strandard Wall Thickness
	(MM)	SCH 10	SCH 20	SCH 40	SCH 60	SCH 80	SCH 100	SCH 160
		(mm)	(mm)	(mm)	(mm)	(mm)	(mm)	(mm)
1/4"	13.7			2.24		3.02
3/8"	17.1			2.31		3.2
1/2"	21.3	2.11		2.77		3.73		4.78
3/4"	26.7	2.11		2.87		3.91		5.56
1"	33.4	2.77		3.38		4.55		6.35
1-1/4"	42.2	2.77		3.56		4.85		6.35
1-1/2"	48.3	2.77		3.68		5.08		7.14
2"	60.3	2.77		3.91		5.54		8.74
2-1/2"	73	3.05		5.16		7.01		9.53
3"	88.9	3.05		5.49		7.62		11.13
3-1/2"	101.6	3.05		5.74		8.08
4"	114.3	3.05	4.50	6.02		8.56		13.49
5"	141.3	3.4		6.55		9.53		15.88
6"	168.3	3.4		7.11		10.97		18.26
8"	219.1	3.76	6.35	8.18	10.31	12.70	15.09	23.01
10"	273	4.19	6.35	9.27	12.7	15.09	18.26	28.58
12"	323.8	4.57	6.35	10.31	14.27	17.48	21.44	33.32
14"	355	6.35	7.92	11.13	15.09	19.05	23.83	36.71
16"	406	6.35	7.92	12.70	16.66	21.44	26.19	40.49
18"	457	6.35	7.92	14.27	19.05	23.83	29.36	46.24
20"	508	6.35	9.53	15.09	20.62	26.19	32.54	50.01
22"	559	6.35	9.53		22.23	28.58	34.93	54.98
24"	610	6.35	9.53	17.48	24.61	30.96	38.89	59.54
26"	660	7.92	12.7

FAQ

Q1:who are we?
A:We are based in Shandong, China, start from 2022,sell to North America(60.00%),Western Europe(14.00%),South America(6.00%).
There are total about 11-50 people in our office.

Q2. how can we guarantee quality?
A:Always a pre-production sample before mass production;
Always final Inspection before shipment;

Q3.what can you buy from us?Which ports are accepted for delivery?
A:Copper,Aluminum,Mould steel, Seamless carbon steel,Precision steel pipe,The steel plate,Alloy steel,Titanium,Custom machine parts.It can be delivered from Qingdao, Tianjin, Shanghai, Guangzhou and other ports.

Q4.why should you buy from us not from other suppliers?
A:Shandong Meide Import and Export Co., Ltd. has 25 years of production experience. With advanced precision production equipment
and modern large warehouses, has a stockpile of 200,000 tons of goods, has a number of long-term stable cooperative customers.

Q5.what services can we provide?
A:Accepted Delivery Terms: FOB,CFR,CIF,EXW;
Accepted Payment Currency:USD,EUR,JPY,CAD,AUD,HKD,GBP,CNY,CHF;
Accepted Payment Type: T/T,L/C,D/P D/A,PayPal;
Language Spoken:English,Chinese

Q6.Can we get the some samples?Any charges?
A:Yes,you can get available samples in our stock.Free for real samples,but customers need to pay the freight cost.

Q7.How can we get your price ?
A:We need below information to quote for you:
1). Product Name
2). Standard
3). Material Grade (Chemical Composition)
4). Dimension
5). Quantity
6). The Drawing for Special Parts