Best Quality Round Steel Tube 20crmnti SCR420 5120 35CrMo 4135 1.7137 1.7131 Carbon Steel Pipe for Construction

• Customization: Available
• Type: Seamless
• Technique: Hot Rolled
• Model NO.: 20CrMnTi SCr420 5120 35CrMo 4135 1.7137 1.7131
• Material: Carbon Steel
• Surface Treatment: Black
• 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
• Invoicing: by Actual Weight
• Thickness: 4mm-150mm
• Length: 12m
• Tolerance: ±5%, ±1%
• Oiled or Non-Oiled: Non-Oiled
• Delivery Time: 7-20 Days
• Product Name: Seamless Alloy Steel Tube/Pipe
• 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

1. Technology of Hot Rolled, Cold Rolled or Cold drawn.
2. Hollow cross-section with lighter weight and higher pressure.
3. High hardness, strength, wear resistance and anti-corrosion.
4. The SMLS can becut, threaded or grooved. And the coating method includes black / red lacquer, varnish painting, hot dip galvanization, etc.
5120H 16CrMnH is a carburized steel, which is usually a low-carbon steel with a carbon content of 0.15% -0.24%. It is commonly used in the manufacturing of transmission gears in automobiles, and is a medium hardenability carburized steel with high hardenability. Under the condition of ensuring hardenability, it particularly has high low-temperature impact toughness. 16CrMnH is suitable for surface carburization and hardening treatment, with good workability, minimal machining deformation, and excellent fatigue resistance.

Chemical Composition (%)

Material	C	Si	Mn	P	S	Cr
5120H	0.14-0.19	0.17-0..37	1.00-1.30	0.035	0.035	0.80-1.10

Mechanical property

Material	Tensile strength σb (MPa)	Yield strength σs (MPa)	Elongation  δ5 (%)	Impact energy Akv (J)	Shrinkage of section ψ (%)	Brinell hardness (HBS100/3000)
5120H	≥930	≥735	≥10	≥47	≥45	<=187

Heat Treatment

Heat treatment specifications and metallographic structure of 16CrMnH alloy steel:
Quenching heating temperature (ºC): 850 ºC, oil cooled;
Tempering heating temperature (ºC): 200 ºC, water-cooled, air-cooled;
Metallographic structure: tempered Martensite.

Product specification

DN	OD		ASTM A53 / API 5L / ASTM A795			BS1387 / EN10255
			SCH10S	STD SCH40	SCH80	Light	Medium	Heavy
	MM	INCH	MM	MM	MM	MM	MM	MM
15	21.3	1/2"	2.11	2.77	3.73	2	2.6	-
20	26.7	3/4"	2.11	2.87	3.91	2.3	2.6	3.2
25	33.4	1"	2.77	3.38	4.55	2.6	3.2	4
32	42.2	1-1/4"	2.77	3.56	4.85	2.6	3.2	4
40	48.3	1-1/2"	2.77	3.68	5.08	2.9	3.2	4
50	60.3	2"	2.77	3.91	5.54	2.9	3.6	4.5
65	73 or 76	2-1/2"	3.05	5.16	7.01	3.2	3.6	4.5
80	88.9	3"	3.05	5.49	7.62	3.2	4	5
90	101.6	3-1/2"	3.05	5.74	8.08
100	114.3	4"	3.05	6.02	8.56	3.6	4.5	5.4
125	141.3	5"	3.4	6.55	9.53		5	5.4
150	168.3	6"	3.4	7.11	10.97		5	5.4
200	219.1	8"	3.76	8.18	12.7
250	273.1	10"	4.19	9.27	15.09

product application

16CrMnH is a high-performance carburized steel with high hardenability. After carburizing and quenching, it has a hard and wear-resistant surface and a tough core, with high low-temperature impact toughness, moderate weldability, and good machinability after normalizing. Widely used for carburizing parts with small cross sections and high load quenched and tempered parts with large cross sections, such as gears, shafts, spindles, worms, sleeves for speed governors, friction wheels for speed changing devices, etc. It can also replace 20CrNi steel to make parts with small cross section size, medium pressure, and no large impact load.

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