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Qingdao Helio Steel Co., Ltd.

Steel, Steel Bar, Steel Round Bar manufacturer / supplier in China, offering 20mncr5 Alloy Round Steel Bar, Bearing Steel Bar SAE52100 AISI52100 100cr6 Suj2, B2 B3 B6 Steel Round Bar for Grinding Rod and so on.

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20mncr5 Alloy Round Steel Bar

FOB Price: US $450 / Ton
Min. Order: 25 Tons
Min. Order FOB Price
25 Tons US $450/ Ton
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Production Capacity: 500000 Tons Per Month
Transport Package: Standard Seaworthy
Payment Terms: L/C, T/T

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Basic Info
  • Model NO.: Alloy Round Steel Bar
  • Technics: Hot Rolled
  • Surface: Polished
  • Special Use: Mold Steel
  • Shape: Round, Square, Flat, Hexagonal
  • Heat Treatment: Annealed, Normalized, Qt
  • Specification: 16mm to 800mm
  • HS Code: 72283090
  • Standard: DIN, JIS, AISI, ASTM, GB, BS
  • Application: Tool Steel Bar
  • Alloy: Alloy
  • Delivery Condition: Hot Rolled, Cold Drawn, Forged
  • Surface Treatment: Cold Drawn, Peeled, Polished, Turned
  • Trademark: LE REN steel
  • Origin: China
Product Description
20mncr5 Alloy Round Steel Bar
1. Chemical composition(%):

C

Si

Mn

S

P

Cr

0.17-0.23

0.17-0.37

0.90-1.20

0.035(max)

0.035(max)

0.90-1.20

2. Mechanical Property:

Tensile Strength

Yield Strength

Elongation

AKV

Reduction of Area

930MPa

735MPa

10%

47J

45%

3. Heat treatment:
Quenching: 850°C, cooling in oil.
Tempering: 200°C, cooling in water and air
4. Size:
1). 16mm to 60mm for cold drawn bars
2): 20mm to 300mm for hot-rolled bars
3): 250mm to 800mm for forged bars
5. Size tolerance:
1): for hot-rolled bars
Hot-rolled steel round or square bar:

d/a(mm)

5.5-7

7-20

20-30

30-50

50-80

80-110

110-150

150-190

190-250

(mm)

+0.30
-0.30

+0.35
-0.35

+0.40
-0.40

+0.50
-0.50

+0.70
-0.70

+1.0
-1.0

+1.3
-1.3

+2.0
-2.0

+2.5
-2.5

Hot-rolled flat bar:

Width(mm)

Thickness(mm)

Size

Size tolerance

Size

Size tolerance

 

Normal

Better

 

Normal

Better

10-50

+0.5, -1.0

+0.3, -0.9

3-16

+0.3, -0.5

+0.2, -0.4

50-75

+0.6, -1.3

+0.4, -1.2

16-60

+1.5%
-3.0%

+1.0%
-2.5%

75-100

+0.9, -1.8

+0.7, -1.7

100-150

+1.0%, -2.0%

+0.8%, -1.8%

 20mncr5 Alloy Round Steel Bar
20mncr5 Alloy Round Steel Bar
 
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