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BS 708M40 Alloy Hot Rolled Steel Round Bar Size 10-350mm Length As Your Request
BS 708M40 Alloy Hot Rolled Steel Round Bar Size 10-350mm Length As Your Request
BS 708M40 Alloy Hot Rolled Steel Round Bar Size 10-350mm Length As Your Request
BS 708M40 Alloy Hot Rolled Steel Round Bar Size 10-350mm Length As Your Request
Specifications
Brand Name :
Unite Steel
Model Number :
Round bar
Certification :
ISO/MTC/SGS/BV
Place of Origin :
China
MOQ :
MOQ:2-3 Ton
Price :
USD 700-1000 Ton
Payment Terms :
L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability :
3000 Ton per month
Delivery Time :
Within 15-45 days
Packaging Details :
Standard seaworthy packing
Product name :
BS 708M40 Hot Rolled Steel Bar ,Alloy Steel Round Bars , Size 10-350mm , Length as your request ,Peeled&turned&polished
Material grade :
BS 708M40
Delivery condition :
Annealed/hot rolled/cold drawn/quenched & tempered
Surface :
Machined/peeled/polished/turned
Process :
LD+LF+VOD+CC+HOT ROLLED+CUT+SLOW COOLING+STRAIGHTENED
UT :
100% Ultrasonic according to the test standards:SEP1921-84
Certificate :
ISO/MTC/BV/SGS
Shape :
round section
Description

BS 708M40 Alloy Hot Rolled Steel Round Bar Size 10-350mm Length As Your Request

1. RELATED SPECIFICATIONS:

USA :AISI 4140 / ASTM A29/A29M-91 4140 / ASTM A322 4140 / ASTM A331 4140 (cold finish) / SAE 4140

JAPAN :JIS G 4103 SNCM4 / JIS G 4105 SCM4 / JIS G 4105 SCM440

GERMANY :DIN 17212 W.Nr. 1.7223 Type 41CrMo4 / DIN17200-1654 W.Nr 1.7225 Type 42CrMo4

GREAT BRITAIN:BS970 - 1955 EN19A / BS970 Part 3:1991 709M40

AUSTRALIA :AS 1444-2007 - 4140

2. DESCRIPTION:

AISI 4140 is a medium carbon, chromium and molybdenum alloy steel. The normal condition is hardened
and tempered to a range of 850 to 1000 Mpa ultimate tensile strength for bar sizes up to 220mm
diameter. Limited ruling sections may apply according to Australian Standards

3. APPLICATIONS:
AISI 4140 is an ideal general purpose high tensile constructional steel ready for use after machining. It is
used for shafts, axles, studs & bolts, large gears and light duty form rolls. The steel is suitable for
induction or flame hardening.


BS 708M40 Alloy Hot Rolled Steel Round Bar Size 10-350mm Length As Your Request

4. TYPICAL CHEMICAL ANALYSIS:

BS 708M40 ALLOY STEEL ROUND BAR

Carbon Silicon Manganese Chromium Nickel Molybdenum Phosphorus Sulfur
0.38-0.45 0.17-0.37 0.50-0.80 0.90-1.20 / 0.15-0.25 0.035 max 0.035 max

Note:The figures are based on the data of 42CrMo, according to Chinese Standard GB-T 699-1999

Chemical compositions can be adjusted as your requirements with a MOQ of 300MTs.

5. HEAT TREATMENT CONDITION AND MECHANICAL PROPERTIES:

BS 708M40 ALLOY STEEL ROUND BAR

Heat Treatment Mechanical Properties Hardness
Normalizing Quenching Tempering Tensile
Strength
(Mpa)

Yield Point

(Mpa)

Elongation

(%)

 Reduction of are (%)

Impact Absorbing

Energy (J)

Before Heat

Treatment (HB)
Celsius Degree MIN MAX
/ 850 550 1080 930 12 45 63 217

6. SIZE RANGE:

Diameter:10-350mm

Length:200-1300mm(cut as your requirement)

BS 708M40 Alloy Hot Rolled Steel Round Bar Size 10-350mm Length As Your Request

PACKAGE AND DELIVERY:

Seaworthy package or as your requirments;

10-25 days after confirmed.

BS 708M40 Alloy Hot Rolled Steel Round Bar Size 10-350mm Length As Your Request

CERTIFICATE OF QUALITY :

Issued in English , in addition the normal terms, production process, the mechanical property (yield strength,tensile strength, elongation and hardness. forged ratio, UT test result,Grain size, heat treatment methods and the sample of is shown on the certificate of quality.

MARKING :

Heat no will be cold stamped and steel grade, diameter (mm)length(mm) and the manufacture Logo and weight(KG) is painted.


BS 708M40 Alloy Hot Rolled Steel Round Bar Size 10-350mm Length As Your Request

Product tags

12mm steel bar length

,

4140 steel flat bar

,

1 8 diamond plate aluminum sheet
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BS 708M40 Alloy Hot Rolled Steel Round Bar Size 10-350mm Length As Your Request

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Product Detail
Brand Name :
Unite Steel
Model Number :
Round bar
Certification :
ISO/MTC/SGS/BV
Place of Origin :
China
MOQ :
MOQ:2-3 Ton
Price :
USD 700-1000 Ton
Contact Supplier
BS 708M40 Alloy Hot Rolled Steel Round Bar Size 10-350mm Length As Your Request
BS 708M40 Alloy Hot Rolled Steel Round Bar Size 10-350mm Length As Your Request

SHANGHAI UNITE STEEL

Active Member
9 Years
shanghai, shanghai
Since 2010
Business Type :
Manufacturer, Distributor/Wholesaler, Agent, Exporter, Trading Company, Seller
Main Products :
Hydraulic Cylinder Steel Tube, Cold Drawn Steel Tube, Cold Rolled Steel Tube
Total Annual :
10000000-25000000
Employee Number :
50~110
Certification Level :
Active Member
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