Alloy Seamless Steel Tube ASTM/JIS/DIN/GB 4140 4120 4130 4340 40mn2 Smn438 Smn443 42mn6 1.1055 Steel Pipe Mechanical Carbon Steel Pipe

• Type: Seamless Steel Tube / Pipe
• Standard: AISI, ASTM, DIN, JIS, GB, BS
• Composition: Alloys and Non-Ferrous Metals
• Technique: Hot Rolled
• Shape: Round
• Surface Treatment: Black
• Model NO.: 1340 40Mn2 SMn438 SMn443 42Mn6 1.1055
• 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

The alloy pipe has a hollow section and is widely used as a pipeline for transporting fluids, such as oil, natural gas, gas, water and some solid substances. Compared with solid steel such as round steel, alloy steel pipe is lighter with the same bending strength and torsional strength. Alloy steel pipe is a kind of economic profile, which is widely used to manufacture structural parts and mechanical parts, such as oil drill pipe, automobile transmission shaft, bicycle frame and steel scaffolding for construction. The use of alloy steel pipe to manufacture ring parts can improve the material utilization rate, simplify the manufacturing process, and save materials and processing time, such as rolling bearing rings, jack sleeves, etc. At present, steel pipes have been widely used in manufacturing. Alloy steel pipe is also an indispensable material for various conventional weapons. The barrel and barrel are made of steel pipes. Alloy steel pipes can be divided into round pipes and special-shaped pipes according to their sectional area and shape.

Chemical Composition (%)

Material	component	C	Si	Mn	P	S	Cr	Ni	Cu
ASTM 1320 GB 20Mn2	minimum value	0.17	0.17	1.4	-	-	-	-	-
	maximum value	0.24	0.37	1.8	0.035	0.035	0.3	0.3	0.3
ASTM 1330 GB 30Mn2	minimum value	0.27	0.17	1.4	-	-	-	-	-
	maximum value	0.34	0.37	1.8	0.035	0.035	0.3	0.3	0.3
ASTM 1335 GB 35Mn2	minimum value	0.32	0.17	1.4	-	-	-	-	-
	maximum value	0.39	0.37	1.8	0.035	0.035	0.3	0.3	0.3
ASTM 1340 GB 40Mn2	minimum value	0.37	0.17	1.4	-	-	-	-	-
	maximum value	0.44	0.37	1.8	0.035	0.035	0.3	0.3	0.3
ASTM 1345 GB 45Mn2	minimum value	0.42	0.17	1.4	-	-	-	-	-
	maximum value	0.49	0.37	1.8	0.035	0.035	0.3	0.3	0.3
GB 50Mn2 DIN 50Mn7	minimum value	0.47	0.17	1.4	-	-	-	-	-
	maximum value	0.55	0.37	1.8	0.035	0.035	0.3	0.3	0.3

Mechanical property

Material	Diameter (thickness) d  mm	tensile strength σ b Mpa	Yield point σ s Mpa	Elongation or elongation after fracture δ    %	Hardness HBW	Impact absorbed energy KV2 J
ASTM 1320 GB 20Mn2	d=15	≥785	≥590	≥10	≤187	≥47
ASTM 1330 GB 30Mn2	d=25	≥785	≥635	≥12	≤207	≥63
ASTM 1335 GB 35Mn2	d=25	≥835	≥685	≥12	≤207	≥55
ASTM 1340 GB 40Mn2	d=25	≥885	≥735	≥12	≤217	≥55
ASTM 1345 GB 45Mn2	d=25	≥885	≥735	≥10	≤217	≥47
GB 50Mn2 DIN 50Mn2	d=25	≥930	≥785	≥9	≤229	≥39

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

Packaging & Shipping

1. Bundle and pack.
2. Warning for inclined end or flat end or according to buyer's requirements.
3. Marking: According to customer requirements.
4. Apply varnish.
5. Plastic covers at both ends.

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