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Heat Treatment 0.26%-0.34% Carbon Steel Round Bar ASTM 4130 / SCM430 Grade

Categories Hot Rolled Steel Bar
Brand Name: Unite Steel
Model Number: Dia : 10-320mm
Certification: ISO/MTC/BV/SGS
Place of Origin: China
MOQ: MOQ:2-3 Ton
Price: USD 600-950 Ton
Payment Terms: D/A, L/C, D/A, D/P, T/T
Supply Ability: 3000 Ton per Month
Delivery Time: Within 15-35 days
Packaging Details: Standard seaworthy packing or as your request .
Product name: ASTM 4130/SCM430/ SCM2/DIN 1.7220 Hot Rolled Steel Bar ,Heat Treatment Steel Bar
Material grade: ASTM 4130/SCM430/ SCM2/DIN 1.7220
Deliervy condition: annealed/hot rolled/cold drawn/quenched & tempered
Surface: black/machined/peeled/polished/turned
Certificate: ISO/MTC/BV/SGS
Process: LD+LF+VOD+CC+HOT ROLLED+CUT+SLOW COOLING+STRAIGHTENED
UT: 100% Ultrasonic according to the test standards:SEP1921-84
Shape: Round shape
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Heat Treatment 0.26%-0.34% Carbon Steel Round Bar ASTM 4130 / SCM430 Grade

ASTM 4130/SCM430/ SCM2/DIN 1.7220 Hot Rolled Steel Bar ,Heat Treatment Steel Bar


1. Standards: AISI 4130,ASTM 4130 ,JIS: SCM430,JIS: SCM2,DIN: 1.7220, 30CrMo


2. Specification: Dia: 10~200mm Length:2000-13000mm or as required


3. Process: EAF(BOF)+LF+VD+ Hot Rolled+ Heat Treatment (optional)


4.Type: Cr-Mo Steel usually used in the hardened, quenched and tempered condition.


Nominal Composition (GB 30CrMo)
ElementWeight %
Carbon0.26-0.34
Silicon0.17-0.37
Manganese0.40 - 0.70
Phosphorus0.025 max *
Sulphur0.025 max *
Molybdenum0.15 - 0.25
Chromium0.80 - 1.10

5.Mechanical Properties:


PropertyValues
Tensile Strength>=885 Mpa
Yield Strength>=685Mpa
Elongation>=12 %
Reduction of Area50 %
Charpy Impact Toughness42 mean/ 33 min J at -18o C
Hardness (HBS)<=197

6.Applications:

Grade 4130 is typically used for pressure containing applications such as valve bodies or pipework, also used for valve gates and stems.

Very good weldability, and so may be readily welded to itself or weld inlayed. However there have been recent concerns on using the grade for buttered connections.

The grade has a typical ruling section of around 4 inches (at 75 Ksi) depending on the composition and analysis, and it is critical that the hardenability of the grade must be taken into account when designing and selecting it for specific equipment.



Quality Heat Treatment 0.26%-0.34% Carbon Steel Round Bar ASTM 4130 / SCM430 Grade for sale
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