Gold Member Since 2014
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Qingdao Helio Steel Co., Ltd.

Grade 8.8 Steel, Grade 8.8 Steel Equivalent, Grade 8.8 Specification manufacturer / supplier in China, offering Grade 8.8 / Grade 10.9 Steel Equivalent, SAE1045 AISI 1045 S45c Forged Steel Round Bar, Bearing Steel Bar SAE52100 AISI52100 100cr6 Suj2 and so on.

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Grade 8.8 / Grade 10.9 Steel Equivalent

FOB Price: US $700 / Ton
Min. Order: 25 Tons
Min. Order FOB Price
25 Tons US $700/ Ton
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Production Capacity: 3000mt Per Month
Transport Package: Anti-Rusty Package
Payment Terms: L/C, T/T, Western Union, Paypal, Money Gram

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Basic Info
  • Model NO.: grade 8.8 steel specification
  • Standard: AISI, ASTM, GB, JIS, DIN, BS
  • Application: Tool Steel Bar
  • Alloy: Alloy
  • Heat Treatment: Quenching and Tempering (Qt)
  • Surface: Black or Bright
  • Specification: 16mm to 50mm
  • HS Code: 72283090
  • Type: Alloy Steel Bar
  • Technique: Hot Rolled, Cold Drawn, Peeled, Qt
  • Surface Treatment: Polished
  • Special Use: Cold Heading Steel
  • Surface Treat Ment: Cold Drawing, Peeling
  • Trademark: LE REN
  • Origin: Laiwu, China
Product Description
grade 8.8 / grade 10.9 steel equivalent
Grade 8.8 steel is equivalent steel materials with enough mechanical properties to be used to produce grade 8.8 steel bolts. 40Cr 41Cr4 SCr440 40X aisi5140 sae5140 steel can be used to produce grade 10.9 steel bolts after quenching and tempering. Grade 8.8 steel specification:
1. grade 8.8 steel equivalent
GBJISDINAISISAE
40CrSCr44041Cr4aisi5140sae5140
2. grade 8.8 steel chemical composition
CSiMnCrNi(≤)Cu(≤)P(≤)S(≤)
0.37-0.440.17-0.370.5-0.80.8-1.00.30.030.0350.035
3. grade 8.8 steel mechanical properties
Tensile strengthYild strengthElongationreduction of area
Min (%)Min (%)Min (%)Min (%)
MpaMpaMpaMpa
980785945
Grade 10.9 steel is equivalent steel materials with enough mechanical properties to be used to produce grade 10.9 steel bolts. 42CrMo4 aisi4140 sae4140 SCM440 ASTM A193 grade b7 steel can be used to produce grade 10.9 steel bolts after quenching and tempering. Grade 10.9 steel specification:
1. Grade 10.9 steel equivalent
GBJISDINAISISAEASTM
42CrMoASCM44042CrMo4aisi4140sae4140astm a193 grade b7
2. Grade 10.9 steel chemcial composition

C

SI

MN

S

P

Cr

Mo

0.38-0.45

0.15 - 0.35

0.60-1.00

0.035  (max)

0.035  (max)

0.80-1.10

0.15-025
3. Grade 10.9 steel mechanical properties
Yield Strength(MPa)Tensile Strength(MPa)Elongation(%)Hardness(HRC)
930(min)1080(mIn)12%(min)28-32

Our company:
Our company QINGDAO HELIO STEEL CO., LTD is belong to LAIWU LE REN TRADE CO., LTD. We have our own factory SHANDONG LE SHAN MACHINERY CO., LTD. to produce cold drawn steel bars and heat treatable steel bars. The grade 8.8 steel and grade 10.9 steel we supply includes: 
40Cr 41Cr4 SCr440 40X aisi5140 sae5140 hot rolled steel round bar
40Cr 41Cr4 SCr440 40X aisi5140 sae5140 cold drawn steel round bar
40Cr 41Cr4 SCr440 40X aisi5140 sae5140 hot rolled and QT steel bar (quenching and tempering)
40Cr 41Cr4 SCr440 40X aisi5140 sae5140 cold drawn and QT steel bar (quenching and tempering)
40Cr 41Cr4 SCr440 40X aisi5140 sae5140 peeled or turned and QT steel bar (quenching and tempering)

Our equipments:
1. Cold drawing machinery:
Grade 8.8 / Grade 10.9 Steel Equivalent
2. Quenching and tempering processing machinery:
Grade 8.8 / Grade 10.9 Steel Equivalent
3. Mechanical properties inspection facilities:

Grade 8.8 / Grade 10.9 Steel Equivalent
Our products and application:
Grade 8.8 / Grade 10.9 Steel Equivalent
Grade 8.8 / Grade 10.9 Steel Equivalent
Grade 8.8 / Grade 10.9 Steel Equivalent
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