SAE 4137h Scm4h Steel with High Quality

Product Details
Customization: Available
Type: Flat
Standard: AISI, ASTM, JIS
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  • SAE 4137h Scm4h Steel with High Quality
  • SAE 4137h Scm4h Steel with High Quality
  • SAE 4137h Scm4h Steel with High Quality
  • SAE 4137h Scm4h Steel with High Quality
  • SAE 4137h Scm4h Steel with High Quality
  • SAE 4137h Scm4h Steel with High Quality
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Basic Info.

Model NO.
SAE 4137H SCM4H 708M40
Composition
Ferrous Steel Scrap
Technique
Hot Forged,or Hot Rolled
Shape
Round,Flat or Square
Surface Treatment
Black Surface, Grinded,Peeled,Milled,Polished
Special Use
Alloy Structural Steel
Application
Structural Steel Bar
Size Range
Round Bar:Dia12~420mm Flat Bar:2~420 X 30~1500mm
Smelting Process
Ef, Eaf, ESR
Delivery Condition
Hot Rolled, Forged, Annealed,Quenched and Tempered
Surface Condition
Black Surface, Grinded,Peeled,Milled,Polished
Transport Package
Seaworth Packing
Specification
Round Bar: Dia12~420mm Flat Bar: 2~420 X 30~1500mm
Trademark
CHENGQUAN
Origin
Huangshi, Hubei
HS Code
7228600000
Production Capacity
5000tons/Year

Product Description

SAE 4137h Scm4h Steel with High QualitySAE 4137h Scm4h Steel with High QualitySAE 4137h Scm4h Steel with High QualityIntroduction:
SAE 4137H is an H-Steel gradeAlloy Steel. It is commonly called SAE 4137H Chromium-molybdenum steel.SAE 4137H offers good ductility and shock resisting properties combined with resistance to wear. With these characteristics it is a popular high tensile engineering steel with a tensile of 850-1000Mpa. At low temperatures it has reasonably good impact properties. It is also suitable for a variety of elevated temperature applications. For maximum wear and abrasion resistance the steel can be nitrided to give a shallow depth wear resistant case. Flame or induction hardening of 708M40T can give a case hardness of 50HRc or higher.
Applications:
SAE 4137H is now widely used in areas such as the motor, oil and gas industries. Suitable for components such as shafts, gears, spindles, bolts, studs and a wide variety of applications where a good quality high tensile steel grade is required.

All Grades Comparison

DIN
BS SAE ASTM JIS ANFOR UNI SS
1.7225 708M40 J1268 4137H SCM4H 40CD4 38CrMo4KB 2244

Chemical Composition(%)

C
Mn Si P S Cr Mo
0.34-0.41 0.60-1.00 0.15-0.35 0.035 max 0.040 max 0.75-1.20 0.15-0.25

Mechanical Properties(T=20°C if not differently stated)

Tensile Strength (Mpa)
Yield Strength(Mpa) Fracture elongation A5 (%) Notch impact energy ISO-V [J] Hardness (HB)
850-1000 650 min 13 min 35 min 248-302

HEAT TREATMENT
Forging:Preheat SAE 4137H carefully, then raise temperature to 850-1200°C for forging. Do not forge below 850°C. After forging SAE 4137H, cool slowly in still air.
Annealing:Heat SAE 4137H slowly to 680-700°C. Cool in air.
Hardening:SAE 4137H is commonly supplied ready heat treated. If further heat treatment is required annealed SAE 4137H should be heated slowly to 860-890°C and after adequate soaking at this temperature quench in oil. Temper as soon as tools reach room temperature.
 SAE 4137h Scm4h Steel with High Quality

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