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GB/T8162 Seamless Steel Pipe

This standard applies to seamless steel tubes for general structural and mechanical structures. The main production of steel pipe grade includes Gr 10, Gr 20, Gr 35, Gr 45, Q345, 15CrMo, and 12Cr1MoV.

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ATSM A252

Product Description

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Product Description

GB/T8162 is a standard seamless pipe, suitable for seamless pipes in general structures and mechanical structures. The parts after quenching and tempering of GB/T8162 seamless steel pipe have good comprehensive mechanical properties and are widely used in various important structural parts, especially those connecting rods, bolts, gears and shafts that work under alternating loads. However, the surface hardness is low and not wear-resistant. Quenching and tempering, as well as surface quenching can be used to improve the surface hardness of the parts.

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Product Parameters

PRODUCT NAME	GB/T8162 Seamless Steel Pipe
STANDARD	EN/DIN/JIS/ASTM/BS/ASME/AISI etc.
OUTER DIAMETER	Seamless : 1/4"-36"	Welded:21.3mm-3620mm
	Round Tube : 1/2"-10"	Square Tube/Rectangular Tube:15x15mm-400x600mm
WALL THICKNESS	Seamless : 1.25mm-50mm	Welded: 1.65mm-65mm
TECHNIQUE	Hot rolled (HR)or Cold rolled (CR)
GRADES	10# 20# 35#45# 50# 60#Q345B Q345C Q345D Q345E,Q235B Q235R Q355B ST12 ST37 ST52
LENGTH	3-12 meters, Support customization
SURFACE PROCESS	Bright,Polished,Black
SERVICES	Machining(cnc), Centerless Grinding(cg), Heat Treatment, Annealing, Pickling, Polishing, Rolling, Forging, Cutting, Bending, Small Machining, etc.

carbon steel pipe supplier

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Chemical Composition

Grade	C	Si	Mn	P,S	Cu	Ni	Mo	Cr
10	0.07~0.14	0.17~0.37	0.35~0.65	≤0.035	≤0.25	≤0.25	/	≤0.15
20	0.17~0.24	0.17~0.37	0.35~0.65	≤0.035	≤0.25	≤0.25	/	≤0.25
35	0.32~0.40	0.17~0.37	0.50~0.80	≤0.035	≤0.25	≤0.25	/	≤0.25
45	0.42~0.50	0.17~0.37	0.50~0.80	≤0.035	≤0.25	≤0.25	/	≤0.25
16Mn	0.12~0.20	0.20~0.55	1.20~1.60	≤0.035	≤0.25	≤0.25	/	≤0.25
12CrMo	0.08~0.15	0.17~0.37	0.40~0.70	≤0.035	≤0.25	≤0.30	0.40~0.55	0.40~0.70
15CrMo	0.12~0.18	0.17~0.37	0.40~0.70	≤0.035	≤0.25	≤0.30	0.40~0.55	0.40~0.70
12Cr1MoV	0.08~0.15	0.17~0.37	0.40~0.70	≤0.035	≤0.25	≤0.30	0.25~0.35	0.40~0.70

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Mechanical Properties

Grade	Tensile Strength(MPa)	Yield Strength(MPa)	Elongation(%)
10	≥335	≥205	≥24
20	≥390	≥245	≥20
35	≥510	≥ 305	≥17
45	≥590	≥335	≥14
16Mn	≥490	≥325	≥21
12CrMo	≥410	≥265	≥24
15CrM0	≥440	≥295	≥22
12Cr1MoV	≥490	≥245	≥22

| Scope of Application

Seamless steel tubes for the manufacture of pipes, vessels, equipment, fittings and mechanical structures

carbon steel pipe

Product Advantages

PRODUCTION ADVANTAGES

Application

FAQ

FAQs

Q1:Can you send samples?

A:Of course, we can provide customers with free samples and express shipping service to all over of the world.
Q2:What product information do I need to provide?

A:Please kindly provide the grade, width, thickness, surface treatment requirement should you have and quantities you need to purchase.
Q3:What ports of shipment are there?

A:Sure,we have agent to arrange the shipment, we will do it together with you.
Q4:What ports of shipment are there?

A:Under normal circumstances, we ship from Shanghai, Tianjin, Qingdao, Ningbo ports, you can specify other ports according to your needs.
Q5：Do you provide custom made Products service?

A:Prices various according to periodic price changes of raw materials.
Q6:What are the certifications for your products?

A:We have ISO 9001, MTC, third parties’ inspections are all available such BV ect.
Q7:Can I go to your factory to visit?

A:Of course, we welcome customers from all over the world to visit our factory.
Q8:How long does your delivery time take?

A:In general, our delivery time is within 7-15 days, and may be longer if the quantity is extremely large or special circumstances occur.
Q9:Does the product have quality inspection before loading?

A:Of course, all our products are strictly tested for quality before packaging, and unqualified products will be destroyed and customers can appoint third parties to inspect the products before loading too.
Q10:How to pack the products?

A: Standard export sea-worthy packaging, the inner layer has a waterproof paper outer layer with iron packaging and is fixed with a fumigation wooden pallet. It can effectively protect products from corrosion and various climate changes during ocean transportation.

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GB/T8162 Seamless Steel Pipe

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