Overview
About ASTM A193 B7 Alloy Steel
C P Steel Suppliers supplies ASTM A193 B7 Alloy Steel for engineering, industrial machinery and manufacturing applications. It is classified as Chromium-Molybdenum High-Temperature & High-Pressure Bolting Steel. Available forms include ROUND BAR.
Contact our Mumbai team with your required size and quantity to confirm availability, documentation and delivery.
ASTM A193 B7 Round Bar Suppliers, ASTM A193 B7 Stockist, ASTM A193 B7 Big Dia, ASTM A193 B7 Cut to size as per requirement, ASTM A193 B7 Flat Bar, ASTM A193 B7 Small Quantity, ASTM A193 B7 Larger Dia, ASTM A193 B7 Circle, Ring. ASTM A193 B7 Mumbai, Chennai, Tamil Nadu, Gujarat, Pune, Maharashtra, India etc.
Specification
Chemical Composition
ElementComposition (wt%)
CCarbon
0.37 - 0.49%
MnManganese
0.65 - 1.10%
SiSilicon
0.15 - 0.35%
CrChromium
0.75 - 1.20%
MoMolybdenum
0.15 - 0.25%
PPhosphorus
max 0.035%
SSulfur
max 0.040%
FeIron
Balance
Performance
Mechanical, Physical & Processing Properties
PropertyValue / Reading
Tensile Strengthmin 860 MPa (<= 64mm) / min 795 MPa (64 - 100mm)
Yield Strengthmin 720 MPa (<= 64mm) / min 655 MPa (64 - 100mm)
Elongationmin 16 %
Hardness Brinellmax 321 HBW (max 35 HRC)
PropertyValue / Reading
Density7.85 g/cm³
Melting Point1416 °C
Modulus Of Elasticity205 - 210 GPa
Thermal Conductivity42.6 W/m·K
PropertyValue / Reading
WeldabilityNot intended for welding in bolting applications.
MachinabilityGood machinability for thread rolling and cutting in quenched and tempered state.
Case HardeningSupplied quenched and tempered (min tempering temp 593 °C) for high-temperature fasteners.
Corrosion ResistanceOften PTFE coated, zinc plated, or hot-dip galvanized for petrochemical service.
Cross Reference
Equivalent Grades by Standard
Standard / RegionEquivalent Grade
Indian IS40Cr4Mo3 (IS 1570)
European EN42CrMo4 (EN 10269 / EN 10083-3)
Germany DIN42CrMo4 (DIN 17200)
Japan JISSNB7 (JIS G4107) / SCM440
UK (BS)708M40 / EN19A (BS 1506-621)
USA (SAE / AISI)ASTM A193 Grade B7 (SAE 4140 / 4142)
Availability
Available Forms & Sizes
- ROUND BAR
Form TypeSize Range Available
Black Round BarsOD 16MM - OD 200MM
FAQ
ASTM A193 B7 — frequently asked questions
What is the equivalent of ASTM A193 B7?
Standards: Indian IS: 40Cr4Mo3 (IS 1570); European EN: 42CrMo4 (EN 10269 / EN 10083-3); Germany DIN: 42CrMo4 (DIN 17200); Japan JIS: SNB7 (JIS G4107) / SCM440; UK (BS): 708M40 / EN19A (BS 1506-621); USA (SAE / AISI): ASTM A193 Grade B7 (SAE 4140 / 4142).
Which forms of ASTM A193 B7 are available?
ASTM A193 B7 is available as ROUND BAR.
Where can I buy ASTM A193 B7 Alloy Steel in Mumbai or across India?
C P Steel Suppliers supplies ASTM A193 B7 Alloy Steel from Mumbai. Contact us with your size and quantity to confirm availability and delivery.
Interested in Alloy Steel ASTM A193 B7?
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