GCr15 steel is a high carbon chromium alloy steel with its versatility. In different heat treated conditions, this material can be used in various mechanical application. For example, GCr15 annealed steel bars can be easy to be machined. GCr15 quenched and tempered steel bars are suitable for applications requiring high hardness, high strength and high fatigue strength for wear resistance.

Product Description

Product	Steel round bar
Outside Dia(mm)	8mm-650mm
Technology	hot rolled/cold rolled/cold drawn/forged
Length	1-12m/customized
Other sections	Angle bar/Square bar/Flat bar/Flat bar
Standard	GB/T799,ASTM A29,A108,A321,A575,BS970,DIN1652,JIS G4051
Material	ASTM(1005,1006,1008,1010,1015,1020,1025,1030,1035,1040,1045, 1050,1055,1060,1065,1070,1080,1084,1016,1022)
	DIN(Ck10,Ck15,Ck22,Ck25,Ck30,Ck35,Ck40,Ck45,Ck50, 30Mn4,40Mn4)
	BS(040A04,095M15,045M10,080A40,045M10,080M50)
	GB(Q195, Q235,Q345)
Surface	Black painted,galvanized
Advantages	High strength, good weldability, good machining performance, good corrosion resistance

We can also supply turned or Peeled Steel Bar, Turned Steel Bar, peeled steel bar, Polished Steel Bar and centerless ground bar. All of the bars are Bright Steel Bar with good surface quality.

GCr15 steel grade is produced by the vacuum-arc melting process, so this grade has good cleanliness and soundness.

GCr15 steel application:

Anti-friction bearings and rollers, Slitting rolls, spacers and knife blades, seals, sleeves, bushings, tools, dies, moulds, engine and hydraulic parts etc.

The detailed specification of GCr15 steel bar:

Sizes	Wide range from 14mm to 100mm
Tolerances	Precision to h9, h10, h11 or even small to 0.02mm
Roundness	75% of diameter tolerance
Straightness	Good straightness to 0.5mm/m
Surface roughness	Smooth to 0.8um
Mechanical properties	Yield strength and tensile strength can be improved
Machining	Suitable for machining and welding

1. GCr15 chemical composition:

Elements	C	Mn	Si	Cr	Mo	P	S	Cu
GCr15 / 52100	0.95-1.05	0.25-0.45	0.15-0.35	1.40-1.65	0.10 max	0.025 max	0.025 max	0.25 max

2. GCr15 equivalent material:

Standard	GB/T 18254	CNS3014	ISO 683/17	GOST 801	JIS G4805	DIN 17230	ASTM A295	BS 970
Grade	GCr15	SUJ2	100Cr6	SH15	SUJ2	100Cr6	52100	EN31

GCr15 Bearing Steel Mechanical Properties

GCr15 Material Hardness

• Spheroidizing annealing hardness: 179-207 HBW
• Softening annealing hardness: ≤245 HBW

Bending of GCr15 bearing steel

• Hot rolled round steel: ≤3mm/meter; Total bending: ≤0.3% x length
• Hot rolled annealing round steel: ≤3mm/meter; Total bending: ≤0.3% x length
• Calcined round steel: ≤5mm/meter; Total bending: ≤0.5% x length
• Cold drawn round steel (Φ≤25mm): ≤2mm/meter; Total bending: ≤0.2% x length
• Cold drawn round steel (Φ>25mm): ≤1.5mm/meter; Total bending: ≤0.15% x length

Applications

GB GCr15 steel is widely used for a variety of applications in the used to the bearings in rotating machinery. Typical applications such as valve bodies, pumps and fittings, the high load of wheel, bolts, double-headed bolts, gears, internal combustion engine. Electric locomotives, machine tools, tractors, steel rolling equipment, boring machine, railway vehicle, and mining machinery transmission shaft on the steel ball, roller and shaft sleeve, etc.

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Regular size and Tolerance

1) Hot Rolled round bar
Diameter (mm)	Diameter Tolerance (mm)	Diameter (mm)	Diameter Tolerance (mm)
≤12.70	-0.13 ～0.30	>50.80～63.5	-0.25～0.76
12.7～25.40	-0.13～0.41	>63.50～76.20	-0.25～1.02
>25.4～38.10	-0.15～0.51	>76.20～101.60	-0.30～+1.27
>38.1～50.80	-0.20～0.64	>101.60～203.20	-0.38～3.81
2) Hot Rolled steel plate
Thickness (mm)	Thickness Tolerance (mm)	Thickness (mm)	Thickness Tolerance (mm)
≤25.4	-0.41～0.79	>127～152	-1.60～2.39
>25.4～76	-0.79～1.19	>178～254	-1.98～3.18
>76～127	-1.19～1.60	>254～305	-2.39～3.96

If you need product information or price, please fill in your contact information in the form, we will usually contact you within 12 hours. You could also email me info@lyapm.com to get prompt reply.

1. Company profile

Luoyue Precision Metal established in 2018, is a leading Stockists and global distributor for Metal Raw Materials like Steel/Aluminum/ Stainless steel/Copper/ Nickel Rods, Bars, Plates, Sheets,Pipes, fittings, fasteners, Inconel alloys, Wire and Wire-Mesh to customers from aerospace, automotive, electronics, precision manufacturing, ordnance, marine, shipbuilding, oil & gas, power plant and construction.

The company has a high-precision, high-efficiency modern processing site, CNC machine tools and complete testing and inspection technology, and introduces international advanced technologies.

           2. Certificates. (Business certificate/ISO9001/Trading certificate/SGS/FormE)

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          3. Our customers 

                 Customer visits 

           4. Past Inquiry

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If you need product information or price, please fill in your contact information in the form below, we will usually contact you within 12 hours. You could also email me info@lyapm.com to get prompt reply.

Customer Feedback:

           Comments

           HOT FAQ:

Q1. Where is your factory ?

A1: Our company’s processing center is located in Shanghai, China.Which is well equipped with kinds of machines, such as laser cutting machine,mirror polishing machine and so on.We can provide a wide range of personalized services according to the customers’ needs.

Q2. What are your company's main products ?

A2: We are professional one-stop meta supplier for Aluminium/ steel/ stainless steel/ copper etc.  

Q3. How do you control quality ?

A3: Mill Test Certification is supplied with shipment, Third Party Inspection is available.

Q4. What are the advantages of your company ?

A4: We have many professionals, technical personnel, more competitive prices and best after-dales service than other stainless steel companies.

Q5. How many coutries you already exported ?

A5: Exported to more than 50 countries mainly from America, Russia, UK, Kuwait, Egypt,Turkey, Jordan, India, etc. We are based in Shanghai, China, start from 2019,sell to Southeast Asia(50.00%),South America(10.00%),North America(5.00%),Eastern Europe(5.00%),Eastern Asia(5.00%),Northern Europe(5.00%),Domestic Market(15.00%),Mid East(10.00%). There are total about 11-50 people in our office.

Q6. Can you provide sample ?

A6: Small samples in store and can provide the samples for free.

Customized samples will take about 5-7days.

Q7Could we visit your factory?  

A7: Sure, we welcome you to visit the factory , check our production lines and know more about our strength and quality.  

Q8: Do you have quality control system?  

A8: Yes, we have ISO, BV, SGS certifications and our own quality control laboratory.  

Q9: Can you arrange the shipment for us?  

A9: Yes, we have designated sea freight and railway freight forwarders with decades of experiences and we get the best  price with earliest vessel and professional service.

Q10: How long is the delivery time?  

A10: Generally it is 7 days if we have the exact goods in our stock. If not, it will take around 15-20 days to get goods ready for delivery.  

Q11: Can I get some samples?  

A11: We are glad to provide free samples to you, but we do not offer the freight.  

Q12: What is your after-sale service?  

A12: We provide after-sale service and offer 100% guarantee on our products.  

Q13: What is your MOQ?  

A13: Depend on the request material, sometimes for customized one have MOQ.

Q14: why should you buy from us not from other suppliers?

Luoyue precision metals (Shanghai) Co., Ltd. is located in Shanghai, China. It is one of the most professional metal material suppliers in China, providing nearly 100 kinds of metal materials, from raw materials to CNC processing

Q15: what services can we provide?

Accepted Delivery Terms: FOB, CFR, CIF, EXW, CIP, DDP, Express Delivery

Accepted Payment Currency:USD,EUR,JPY,CAD,GBP,CNY;

Accepted Payment Type: T/T,L/C,D/P D/A

Language Spoken:English,Chinese,Spanish

Supply Ability

500 Ton/Tons per Month

Packaging & Delivery

Airworthy package. Waterproof cloth, wooden case, craft paper and steel belt packing.

Port: shanghai

Exhibition

Production Workshop

Package & Shipping

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