• Sourcing Solutions
  • Services & Membership
  • Help & Community

Quick Details

  • Steel Grade: Alloy Steel
  • Standard: AISI, ASTM, BS, DIN, GB, JIS
  • Dimensions: 16-60mm
  • Place of Origin: Shandong, China (Mainland)
  • Brand Name: LS
  • Model Number: 40cr
  • Technique: heat treatment
  • Application: Structural Steel Bar
  • Alloy Or Not: Is Alloy
  • Special Use: Mold Steel
  • Type: Alloy Steel Bar
  • Product Name: high quality Grade 8.8 40Cr qt steel round bar
  • Grade: Grade 8.8 40Cr
  • Length: 3.66/6/5.8m
  • application: bolts and nuts
  • Certificate: ISO9001

Packaging & Delivery

Packaging Details 1): Paint oil on the surface to protect steel bars from rusting.
2): Bundle packing by Iron Strips.
3): Bundle weight is from 2mt to 3 mt.
4): Two or three tags will be attached on each bundle
Delivery Time within 20days after received deposit

high quality Grade 8.8 40Cr qt steel round bar

 

Used in the manufacture of shafts, connecting rods, gears and bolts

Hardenability is better, High overall mechanical properties, good low temperature impact toughness, low notch sensitivity, with temper brittleness.

 

Production Process:

Blast Furnance→ Molten Iron Pretreatment→Converter→LF→VD/RH→ContinuousCasting→Hot Rolling(KOCKS)→ Heat Treatment→ UT Inspection→Finish Product
EAF→LF→VD/RH→ Continuous Casting→Hot Rolling(KOCKS)→ Heat Treatment→ UT Inspection→ Finish Product

 

Chemical Composition 

Grade

C

Cr

Mn

Si

P

S

Ni

Cu

Mo

 

 

 

 

 

40Cr

0.37-0.44

0.80-1.10

0.50-0.80

0.17-0.37

0.035

0.035

0.30

0.30

0.15

 

Mechanical Property

 

Tensile strength

Yild strength

Elongation

reduction of area

Min (%)

Min (%)

Min (%)

Min (%)

Mpa

Mpa

Mpa

Mpa

980 

785 

45 

 

 

Packing:
1): Paint oil on the surface to protect steel bars from rusting.
2): Bundle packing by Iron Strips.
3): Bundle weight is from 2mt to 3 mt.
4): Two or three tags will be attached on each bundle

5140 steel bar/ qt steel/ steel/ steel bar/ qt steel bar/grade 8.8/ grade 8.8 bolts

Transaction History of the Supplier

Below is the information about the supplier's transactions conducted via Alibaba.com. If you require further details regarding the transaction data, please contact the supplier directly.

Transaction Overview

Transactions

Transaction Details

This supplier has completedtransactions with buyers from .

Shipping Destination
Transaction Value
Transaction Date
Email to this supplier
China (Mainland) | Manufacturer, Trading Company
Transaction Level:
Supplier Assessments:
The supplier supports Trade Assurance – A free service that protects your orders from payment to delivery.
Supplier's Trade Assurance Limit: US $93,000
Learn More