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Hot Rolled Steel 817M40 Alloy Round Bar

Type: 817M40 Rolled Steel
Standard: AISI, ASTM,  GB, DIN, JIS
Technology: Hot Rolled/Forged/Cold Drawn
Form: Round Bars/ Flat Bar / Blocks/ Tube
Surface: Black; Peeled; Polished; Machined; Grinded; Turned
Process: Eaf+Lf+Vd+Forged+Heat Treatment(Optional)
Certificate: ISO/ Mill Certificate   
Warranty: Three Years
Sample Supply: Yes
 
 
Availability:
Quantity:
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  • 817M40

  • Qilu

Product Description

Hot Rolled Steel 817M40 Alloy Round Bar


1: 817M40 Steel Introduction

Alloy steel 817M40 is an alloy steel with high strength and good toughness for applications requiring high strength and durability. It has high strength, good toughness, good hardenability and resistance to overheating stability, but also has high white point sensitivity and temper brittleness, which means that under certain conditions it may be brittle or damage. Therefore, attention needs to be paid to proper treatment and service temperatures to avoid these problems. In addition, the poor weldability of 817M40 steel requires high-temperature preheating and post-weld stress relief treatment to improve the reliability and durability of welded joints.


817M40热轧

817M40 Steel Stock in Warehouse


2: 817M40 Quality Standard

817M40 steel according to BS 970.


3: 817M40 Steel Equivalent

Country

Japan

Germany

Britain

USA

Standard

JIS G4103

EN10250

BS970

ASTM A29

Grade

SNCM439

36CrNiMo4/1.6511

EN24/817M40

4340


4: 817M40 Steel Chemical Composition

Grade

C

Si

Mn

P

S

Cr

Mo

Ni

4340

0.38-0.43

0.15-0.35

0.60-0.80

0.035

0.040

0.70-0.90

0.20-0.30

1.65-2.00

36CrNiMo4

0.32-0.40

0.40

0.50-0.80

0.035

0.035

0.90-1.20

0.15-0.30

/

817M40

0.36-0.44

0.10-0.40

0.45-0.70

0.035

0.040

1.00-1.40

0.20-0.35

1.30-1.70

SNCM439

0.36-0.43

0.15-0.35

0.60-0.90

0.030

0.030

0.60-1.00

0.15-0.30

1.60-2.00


5: 817M40 Steel Mechanical Properties 

The mechanical properties mainly include tensile strength, yield strength, elongation, area or reduction, hardness, impact value, non-metalic inclusion etc. Different heat treatment, the mechanical properties will be different, such as normalized, tempered, QT. If you want to know the properties, kindly contact the salesman.


6: Qilu Company Profile

Hunan Qilu was engaged in steel exporting since 2008 year, the former was the sales company for Qilu Special Steel co.,ltd which was founded in 1986 year. Now Hunan Qilu Metal is one of most professional steel manufacturer and exporter in China. We already exported steel material to Germany, UK, Ireland, Greece, Italy, Poland,Belgium, Estonia, Latvia, Spain, France, Netherlands, Portugal, Czech republic, Finland, Russia, Belarus, Canada, Mexico, Brazil, Chile, Colombia, Peru, Argentina, Venezuela, Thailand, Indonesia, Vietnam, Singapore, Malaysia, Philippines, UAE, South Africa, Zambia, Australia etc.


Factory


7: Production Equipment

The company owns advanced special steel smelting facilities and forging processing equipment, the main steel-making equipment include 2 set of 50t and 25t ultra-high power electric arc furnaces, 2 set of 60t and 30t LF refining furnaces, 2 set of 60t and 30t vacuum degassing refining furnace. 4 sets of 1-20t electroslag re-melting furnaces.

The main forging equipment mainly include:3 sets of 3t 5t and 8t electro-hydraulic hammers, 3 sets of high-speed forging units of 1600t, 2000t and 4500t respectively.


Production Equipment


8: Our Company Certificate

We already passed ISO 9000 : 2015 certificate of quality system, and we could supply steel forging material with all kinds of Classification Society Certification, such as ABS, ,DNV, BV, CCS etc. We also supplied steel material to oil industry with API certificate, such as API20B, API6A etc.


Certificate


9: Stock&Warehouse

Besides forging material, we also supply hot rolled material from Dongbei special steel, Tiangong, Changcheng special steel, Lihuai Special Steel, Laisteel, Juneng steel, Yongsteel, Xinxin steel, Shijiazhuang steel etc. We have two warehouses for hot rolled material. Further processing such as heating treatment, rough machining and milled are also provided by us.


Stock


10: 817M40 Steel Overviews

Size

Round

Dia 6-1200mm

Plate/Flat/Block

Thickness
6mm-500mm

Width
20mm-1000mm

Heat treatment

Normalized ; Annealed ; Quenched ; Tempered

Surface condition

Black; Peeled; Polished; Machined; Grinded; Turned; Milled

Delivery condition

Forged; Hot rolled; Cold drawn

Test

Tensile strength, Yield strength, elongation, area of reduction, impact value,

hardness, grain size, ultrasonic test, US inspection, magnetic particle testing, etc.

Payment terms

T/T;L/C;/Money gram/ Paypal

Trade terms

FOB; CIF; C&F; etc..

Delivery time

30-45 days


11: 817M40 Steel Tolerance


Diameter(mm)

Tolerance

Forged Steel Round Bar

80-600

Black Surface:0~+5

Rough Machined or Turned:0~+3

650-1200

Black Surface:0~+15

Rough Machined or Turned:0~+3

Hot Rolled Steel Round Bar

16-310

Black Surface:0~+1

Peeled:H11

Cold Drawn Steel Round Bar

6-100

Black Surface:H11

Peeled:H11


12: Packing& Delivery

For the delivery, we will choose LCL, FCL and Bulk carrier according to order quantity. Usually if the quantity is less than 10tons, we will recommend LCL. If the quantity is more than 100tons, we will recommend bulk carrier. Usually FCL will be the most common for delivery.

In order to better ensure the safety of your goods, we will provide professional, environmentally friendly, convenient and efficient packaging services. Such as pallet, wooden box, package with woven bag etc.


Packing&Delivery


13: 817M40 Steel Application

  • High-load transmissions such as gears, shafts and bearings.

  • Machine parts and tools requiring high strength and toughness, such as drive shafts, chucks, etc.

  • Wear-resistant materials for special applications, such as cutting tools, hammer heads, etc.


14: Delivery Condition

For hot forged or hot rolled bar, usually the delivery condition is hot forged or rolled, annealed or QT, black surface or rough turned.
For hot forged plate, usually the delivery condition is hot forged, annealed or QT, milled surface.
For hot rolled plate, usually the delivery condition is hot rolled, annealed or QT, black surface.


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SPECIALIZING IN SPECIAL STEEL SMELTING AND FORGING

About Us

Hunan Qilu Metal is one of the professional steel manufacturers and exporters in China, with multiple certificates such as ISO9001. Our products can be produced according to customer requirements, with a small minimum order quantity and affordable prices.

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Tel:+86-731-85185765
Email:enquiry@qilumetal.com
Address:Room 2832, Building B3 to B6, Taskin Urban Plaza, No. 18 Xiangfu Middle Road,Yuhua District, Changsha City
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