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Metallurgy & Materials Specifications Directory

Complete engineering chemistry, tensile parameters, heat treatment cycles, and international grade equivalents for 25 certified forging alloys. Hot-forged and precision-machined in Rajkot, Gujarat strictly up to 50 kg max piece weight with full EN 10204 3.1 Mill Test Certificate (MTC) traceability.

Certified Alloys25 Grades
Max Piece WeightUp to 50 kg
Testing Protocol100% UT & PMI
Export Proximity240 km Mundra

Quick AnswerFeatured

Jayesh Forge manufactures 25 certified metallurgy grades in Rajkot, Gujarat strictly up to 50 kg per piece, including ASTM A105, A350 LF2 (-46°C cryogenic), AISI 4140/4340 alloy steels, Stainless Steel 304L/316L/321/347, Duplex 2205 (PREN ≥35), Super Duplex 2507 (PREN ≥42), and non-ferrous C36000 brass and C11000 copper. All shipments include EN 10204 3.1 MTC with 100% Ultrasonic Testing (ASTM A388) and heat-number traceability.

Showing 25 of 25 certified forging alloys (Up to 50 kg max piece weight)

Carbon SteelUNS K03504

ASTM A105 / ASME SA105 Carbon Steel

DIN/EN: 1.0460 •Density: 7.85 g/cm³

ASTM A105 is the premier forged carbon steel specification for high-pressure industrial piping components, flanges, fittings, and valves operating from ambient to 425°C. Drop-forged in Rajkot strictly up to 50 kg per piece with unbroken grain alignment.

Tensile Strength:485 MPa min
Yield Strength:250 MPa min
Hardness:137 – 187 HBW
Chemistry Signature:
C: ≤0.35%Mn: 0.6-1.05%P: ≤0.035%S: ≤0.04%Si: 0.1-0.35%+5 more
Full Metallurgy Data
Carbon SteelUNS K03011

ASTM A350 LF2 Class 1 Carbon Steel

DIN/EN: 1.0566 •Density: 7.85 g/cm³

ASTM A350 LF2 is a specialized low-temperature carbon steel engineered for sub-zero cryogenic, arctic, and LNG piping applications requiring mandatory Charpy V-notch toughness down to -46°C (-50°F). Precision forged up to 50 kg.

Tensile Strength:485 – 655 MPa
Yield Strength:250 MPa min
Hardness:197 HBW max
Chemistry Signature:
C: ≤0.3%Mn: 0.6-1.35%P: ≤0.035%S: ≤0.04%Si: 0.15-0.3%+5 more
Full Metallurgy Data
Carbon SteelUNS G10180

AISI 1018 / IS 2062 Mild Low-Carbon Steel

DIN/EN: 1.0401 •Density: 7.87 g/cm³

AISI 1018 is a ductile, versatile low-carbon forging steel offering superior machinability, case-carburizing capacity, and effortless welding. Precision closed-die forged in Rajkot strictly up to 50 kg for hardware, tie rods, and industrial bushes.

Tensile Strength:440 MPa min
Yield Strength:370 MPa min
Hardness:126 – 160 HBW
Chemistry Signature:
C: 0.15-0.2%Mn: 0.6-0.9%P: ≤0.04%S: ≤0.05%
Full Metallurgy Data
Carbon SteelUNS G10450

AISI 1045 / C45 Medium Carbon Steel

DIN/EN: 1.1191 •Density: 7.85 g/cm³

AISI 1045 / C45 is a medium-tensile carbon steel delivering balanced strength, wear resistance, and surface-hardenability. Widely utilized in Rajkot for hot-forged drive shafts, crankshafts, hubs, and gear blanks strictly up to 50 kg.

Tensile Strength:570 – 700 MPa
Yield Strength:310 – 380 MPa
Hardness:170 – 210 HBW
Chemistry Signature:
C: 0.43-0.5%Mn: 0.6-0.9%P: ≤0.04%S: ≤0.05%Si: 0.15-0.35%
Full Metallurgy Data
Carbon SteelUNS K03014

ASTM A694 F52 High-Yield Carbon Steel

DIN/EN: 1.0562 •Density: 7.85 g/cm³

ASTM A694 Grade F52 is a high-yield micro-alloyed forging steel tailored for cross-country petroleum pipelines, gas transmission headers, and offshore risers requiring minimum 52,000 psi yield strength. Precision forged up to 50 kg.

Tensile Strength:455 MPa min
Yield Strength:360 MPa min
Hardness:170 – 220 HBW
Chemistry Signature:
C: ≤0.26%Mn: ≤1.4%P: ≤0.025%S: ≤0.025%Si: 0.15-0.35%+2 more
Full Metallurgy Data
Carbon SteelUNS K03015

ASTM A694 F65 High-Yield Pipeline Steel

DIN/EN: 1.8905 •Density: 7.85 g/cm³

ASTM A694 Grade F65 delivers a minimum 65,000 psi (450 MPa) yield strength, matching high-strength API 5L X65 line pipe. Quenched and tempered in Rajkot to maximize impact toughness for demanding offshore and arctic gas mains.

Tensile Strength:530 MPa min
Yield Strength:450 MPa min
Hardness:190 – 235 HBW
Chemistry Signature:
C: ≤0.26%Mn: ≤1.6%P: ≤0.025%S: ≤0.02%Si: 0.15-0.35%+2 more
Full Metallurgy Data
Alloy SteelUNS G41400

AISI 4140 / 42CrMo4 High-Tensile Alloy Steel

DIN/EN: 1.7225 •Density: 7.85 g/cm³

AISI 4140 (42CrMo4 / EN19) is a premier Cr-Mo through-hardening alloy steel combining high tensile strength (up to 1000 MPa), exceptional fatigue resistance, and high torsional toughness. Hot forged in Rajkot strictly up to 50 kg.

Tensile Strength:850 – 1000 MPa
Yield Strength:650 – 750 MPa
Hardness:260 – 310 HBW
Chemistry Signature:
C: 0.38-0.43%Cr: 0.8-1.1%Mn: 0.75-1%Mo: 0.15-0.25%Si: 0.15-0.35%+2 more
Full Metallurgy Data
Alloy SteelUNS G43400

AISI 4340 / 34CrNiMo6 Ultra-High Strength Steel

DIN/EN: 1.6582 •Density: 7.85 g/cm³

AISI 4340 (34CrNiMo6 / EN24) is a deep-hardening Ni-Cr-Mo alloy steel designed for heavily stressed dynamic components requiring extreme fracture toughness and impact absorption. Drop-forged strictly up to 50 kg.

Tensile Strength:1000 – 1200 MPa
Yield Strength:850 – 1000 MPa
Hardness:300 – 360 HBW
Chemistry Signature:
C: 0.38-0.43%Ni: 1.65-2%Cr: 0.7-0.9%Mn: 0.6-0.8%Mo: 0.2-0.3%+1 more
Full Metallurgy Data
Alloy SteelUNS G86200

AISI 8620 Case-Hardening Triple Alloy Steel

DIN/EN: 1.6523 •Density: 7.85 g/cm³

AISI 8620 is a low-carbon triple-alloy steel developed specifically for case-carburizing. Provides an ultra-hard surface case (60–64 HRC) backed by an exceptionally tough, shock-absorbing ductile core. Forged up to 50 kg.

Tensile Strength:750 – 950 MPa
Yield Strength:550 – 700 MPa
Hardness:Surface: 58 – 62 HRC
Chemistry Signature:
C: 0.18-0.23%Ni: 0.4-0.7%Cr: 0.4-0.6%Mo: 0.15-0.25%Mn: 0.7-0.9%+1 more
Full Metallurgy Data
Alloy SteelUNS H51200

20MnCr5 / 16MnCr5 Chrome-Manganese Alloy Steel

DIN/EN: 1.7147 •Density: 7.85 g/cm³

20MnCr5 (1.7147) and 16MnCr5 are European-standard chromium-manganese carburizing steels engineered for high surface wear resistance and high core strength in automotive transmissions and tractor gearboxes. Forged up to 50 kg.

Tensile Strength:1000 – 1300 MPa
Yield Strength:700 – 900 MPa
Hardness:Surface: 59 – 63 HRC; Core: 30 – 38 HRC
Chemistry Signature:
C: 0.17-0.22%Mn: 1.1-1.4%Cr: 1-1.3%Si: ≤0.4%P: ≤0.035%+1 more
Full Metallurgy Data
Alloy SteelUNS K11572

ASTM A182 F11 Class 2 Low-Alloy Boiler Steel

DIN/EN: 1.7335 •Density: 7.85 g/cm³

ASTM A182 F11 Class 2 (1.25% Cr - 0.5% Mo) is a creep-resistant low-alloy steel engineered for supercritical power piping, steam boilers, and hydroprocessing reactors operating up to 590°C (1100°F). Forged strictly up to 50 kg.

Tensile Strength:485 MPa min
Yield Strength:275 MPa min
Hardness:143 – 207 HBW
Chemistry Signature:
C: 0.1-0.2%Mn: 0.4-0.65%P: ≤0.04%S: ≤0.04%Si: 0.5-0.8%+2 more
Full Metallurgy Data
Alloy SteelUNS K21590

ASTM A182 F22 Class 3 High-Temp Alloy Steel

DIN/EN: 1.7380 •Density: 7.85 g/cm³

ASTM A182 Grade F22 Class 3 (2.25% Cr - 1.0% Mo) is a heavy-duty creep-resistant alloy steel engineered to resist high-temperature hydrogen attack (Nelson Curves) in refinery hydrodesulfurization and subsea wellheads. Forged up to 50 kg.

Tensile Strength:515 MPa min
Yield Strength:310 MPa min
Hardness:156 – 207 HBW
Chemistry Signature:
C: 0.05-0.15%Mn: 0.3-0.6%P: ≤0.04%S: ≤0.04%Si: ≤0.5%+2 more
Full Metallurgy Data
Alloy SteelUNS K90901

ASTM A182 F91 Martensitic Creep-Resistant Steel

DIN/EN: 1.4903 •Density: 7.76 g/cm³

ASTM A182 Grade F91 (Grade 91) is a 9% Chromium - 1% Molybdenum steel micro-alloyed with Vanadium and Niobium (V & Nb). Engineered specifically for high-temperature creep strength in ultra-supercritical steam systems operating up to 650°C (1200°F). Forged up to 50 kg.

Tensile Strength:585 – 760 MPa
Yield Strength:415 MPa min
Hardness:190 – 248 HBW
Chemistry Signature:
C: 0.08-0.12%Mn: 0.3-0.6%P: ≤0.02%S: ≤0.01%Si: 0.2-0.5%+5 more
Full Metallurgy Data
Stainless SteelUNS S30400

Stainless Steel 304 / ASTM A182 F304

DIN/EN: 1.4301 •Density: 7.93 g/cm³

SS 304 (1.4301 / UNS S30400) is the classic 18% Cr - 8% Ni austenitic stainless steel offering superior formability, toughness down to cryogenic temperatures, and resistance to atmospheric and chemical oxidation. Forged in Rajkot up to 50 kg.

Tensile Strength:515 MPa min
Yield Strength:205 MPa min
Hardness:140 – 192 HBW max
Chemistry Signature:
C: ≤0.08%Cr: 18-20%Ni: 8-11%Mn: ≤2%Si: ≤1%+2 more
Full Metallurgy Data
Stainless SteelUNS S30403

Stainless Steel 304L / ASTM A182 F304L

DIN/EN: 1.4306 •Density: 7.93 g/cm³

SS 304L is the extra-low carbon variant (C ≤ 0.030%) of grade 304. Specifically engineered to eliminate sensitization during welding, making it the preferred choice for heavy welded flanges, pipe tees, and process vessels. Forged strictly up to 50 kg.

Tensile Strength:485 MPa min
Yield Strength:170 MPa min
Hardness:135 – 187 HBW max
Chemistry Signature:
C: ≤0.03%Cr: 18-20%Ni: 8-12%Mn: ≤2%Si: ≤1%+2 more
Full Metallurgy Data
Stainless SteelUNS S31600

Stainless Steel 316 / ASTM A182 F316

DIN/EN: 1.4401 •Density: 8 g/cm³

SS 316 contains 2.0% to 3.0% Molybdenum, providing drastically superior resistance to chloride pitting, crevice corrosion, and sulfuric/acetic acids compared to standard 304. Forged in Rajkot strictly up to 50 kg.

Tensile Strength:515 MPa min
Yield Strength:205 MPa min
Hardness:145 – 195 HBW max
Chemistry Signature:
C: ≤0.08%Cr: 16-18%Ni: 10-14%Mo: 2-3%Mn: ≤2%+3 more
Full Metallurgy Data
Stainless SteelUNS S31603

Stainless Steel 316L / ASTM A182 F316L

DIN/EN: 1.4404 •Density: 8 g/cm³

SS 316L (1.4404 / UNS S31603) combines the chloride resistance of Molybdenum with an ultra-low carbon chemistry (C ≤ 0.030%). Fully certified to NACE MR0175 / ISO 15156 for sour gas petroleum lines and marine subsea manifolds. Forged up to 50 kg.

Tensile Strength:485 MPa min
Yield Strength:170 MPa min
Hardness:140 – 187 HBW max
Chemistry Signature:
C: ≤0.03%Cr: 16-18%Ni: 10-14%Mo: 2-3%Mn: ≤2%+3 more
Full Metallurgy Data
Stainless SteelUNS S31635

Stainless Steel 316Ti / 1.4571 Titanium-Stabilized

DIN/EN: 1.4571 •Density: 8 g/cm³

SS 316Ti (1.4571) is a titanium-stabilized variant of grade 316. The titanium binds with carbon to form titanium carbides (TiC), preventing sensitization during extended exposure to the 550°C to 800°C temperature window. Forged up to 50 kg.

Tensile Strength:515 – 690 MPa
Yield Strength:205 MPa min
Hardness:150 – 205 HBW
Chemistry Signature:
C: ≤0.08%Cr: 16.5-18.5%Ni: 10.5-13.5%Mo: 2-2.5%Ti: 0.4-0.7%
Full Metallurgy Data
Stainless SteelUNS S32100

Stainless Steel 321 / ASTM A182 F321

DIN/EN: 1.4541 •Density: 7.92 g/cm³

SS 321 (1.4541) is an 18/8 austenitic stainless steel stabilized with Titanium (Ti ≥ 5x %C). Specifically developed to eliminate chromium carbide precipitation during continuous operation in the sensitization range of 425°C to 900°C. Forged up to 50 kg.

Tensile Strength:515 MPa min
Yield Strength:205 MPa min
Hardness:140 – 192 HBW max
Chemistry Signature:
C: ≤0.08%Cr: 17-19%Ni: 9-12%Ti: 0.4-0.7%Mn: ≤2%+1 more
Full Metallurgy Data
Stainless SteelUNS S34700

Stainless Steel 347 / ASTM A182 F347

DIN/EN: 1.4550 •Density: 7.96 g/cm³

SS 347 (1.4550) is an austenitic stainless steel stabilized with Niobium (Columbium). Provides superior creep resistance and higher allowable working stresses at temperatures above 550°C compared to titanium-stabilized grades. Forged up to 50 kg.

Tensile Strength:515 MPa min
Yield Strength:205 MPa min
Hardness:145 – 195 HBW max
Chemistry Signature:
C: ≤0.08%Cr: 17-19%Ni: 9-13%Nb+Ta: 0.8-1%Mn: ≤2%+1 more
Full Metallurgy Data
Stainless SteelUNS S20200

Stainless Steel 202 Low-Nickel High-Manganese

DIN/EN: 1.4373 •Density: 7.8 g/cm³

SS 202 is a low-nickel (4%–6%), manganese-nitrogen stabilized austenitic stainless steel offering higher yield strength than standard 304 at an economical price point. Hot forged in Rajkot strictly up to 50 kg for commercial and hardware fittings.

Tensile Strength:620 MPa min
Yield Strength:310 MPa min
Hardness:170 – 217 HBW
Chemistry Signature:
C: ≤0.15%Mn: 7.5-10%Cr: 17-19%Ni: 4-6%N: ≤0.25%+1 more
Full Metallurgy Data
Duplex & Super DuplexUNS S31803 / UNS S32205

Duplex 2205 / ASTM A182 F51 / S31803 / S32205

DIN/EN: 1.4462 •Density: 7.8 g/cm³

Duplex 2205 (1.4462) has an optimized 50/50 austenitic-ferritic microstructure delivering twice the mechanical yield strength of standard austenitic stainless steels, combined with outstanding resistance to chloride stress corrosion cracking. Forged up to 50 kg.

Tensile Strength:655 – 880 MPa
Yield Strength:450 MPa min
Hardness:290 HBW max
Chemistry Signature:
Cr: 22-23%Ni: 4.5-6.5%Mo: 3-3.5%N: 0.14-0.2%C: ≤0.03%+2 more
Full Metallurgy Data
Duplex & Super DuplexUNS S32750

Super Duplex 2507 / ASTM A182 F53 / S32750

DIN/EN: 1.4410 •Density: 7.8 g/cm³

Super Duplex 2507 (1.4410 / UNS S32750) is an alloyed 25% Cr - 7% Ni - 4% Mo super duplex stainless steel designed for extreme deepwater subsea environments, aggressive sour oil reservoirs, and high-chloride industrial scrubbers. Forged up to 50 kg.

Tensile Strength:750 – 1000 MPa
Yield Strength:550 MPa min
Hardness:310 HBW max
Chemistry Signature:
Cr: 24-26%Ni: 6-8%Mo: 3-5%N: 0.24-0.32%C: ≤0.03%+1 more
Full Metallurgy Data
Non-Ferrous AlloyUNS C36000

C36000 Free-Cutting Brass / IS 319

DIN/EN: CW614N •Density: 8.5 g/cm³

C36000 Free-Cutting Brass (CW614N) is the global benchmark for high-speed CNC machinability (100% rating) combined with non-magnetic and non-sparking safety properties. Hot-forged in Rajkot strictly up to 50 kg for plumbing, gas valves, and electrical hardware.

Tensile Strength:380 – 480 MPa
Yield Strength:180 – 280 MPa
Hardness:110 – 145 HBW
Chemistry Signature:
Cu: 60-63%Pb: 2.5-3.7%Fe: ≤0.35%Zn: 33-37%
Full Metallurgy Data
Non-Ferrous AlloyUNS C11000

C11000 Electrolytic Tough Pitch (ETP) Copper

DIN/EN: CW004A •Density: 8.94 g/cm³

C11000 ETP Copper provides a guaranteed minimum electrical conductivity of 100% IACS along with exceptional thermal transfer. Hot-forged in Rajkot strictly up to 50 kg for heavy electrical switchgear, furnace electrodes, and power substation terminals.

Tensile Strength:220 – 310 MPa
Yield Strength:70 – 180 MPa
Hardness:50 – 85 HBW
Chemistry Signature:
Cu+Ag: 99.9-100%O: 0.02-0.04%
Full Metallurgy Data

Forging Metallurgy Classifications at a Glance

Cross-compare core mechanical capabilities, temperature envelopes, and corrosion ratings across all 5 alloy categories.

Material FamilyKey GradesTensile RangeTemperature RangePrimary AdvantagePrimary Application
Carbon SteelA105, A350 LF2, 1018, 1045, A694 F52/F65440 – 655 MPa-46°C to +425°CCost-effective, reliable weldability & pressure containmentProcess piping flanges, transmission lines, fittings
Alloy Steel4140, 4340, 8620, 20MnCr5, F11, F22, F91485 – 1200 MPa-20°C to +650°CHigh torsional toughness, fatigue resistance & creep strengthGears, pinions, heavy couplings, boiler headers
Stainless Steel304, 304L, 316, 316L, 316Ti, 321, 347, 202485 – 690 MPa-196°C to +870°CPassivated corrosion immunity, cryo-toughness & hygieneFood & pharma lines, marine fittings, exhaust manifolds
Duplex & Super Duplex2205 (F51 / S31803), 2507 (F53 / S32750)655 – 1000 MPa-50°C to +250°C2x austenitic yield strength + PREN ≥35/42 chloride immunityOffshore platforms, subsea trees, desalination plants
Non-Ferrous AlloysC36000 Brass, C11000 ETP Copper220 – 480 MPa-40°C to +200°C100% machinability, non-sparking, 100% IACS conductivityElectrical busbars, non-sparking hardware, valves
Rajkot Metallurgy & Metallography Testing Facility

Rigorous Raw Material Certification & Traceability

Explore Quality Infrastructure

100% OES Positive Material Identification

Optical Emission Spectrometry (OES) calibrated to NIST standards verifies every raw billet heat before heating, guaranteeing strict compliance with ASTM, ASME, DIN, and UNS chemistry limits.

ASTM A388 Level II Ultrasonic Testing

100% volumetric ultrasonic evaluation detects internal micro-voids, pipe shrinkage, or inclusions, ensuring zero porosity in high-pressure flanges and seamless rolled rings.

EN 10204 3.1 Mill Test Certificates

Every dispatch carries an authenticated 3.1 MTC containing heat number traceability, actual ladle chemistry, tensile yield elongation, and Charpy V-notch impact values.

Procurement & Engineering Intelligence

Frequently Asked Materials & Metallurgy Questions

Jayesh Forge hot-forges and CNC-machines 25 industrial alloy grades spanning Carbon Steels (ASTM A105, A350 LF2, AISI 1018, 1045, A694 F52/F65), Alloy Steels (AISI 4140, 4340, 8620, 20MnCr5, A182 F11/F22/F91), Austenitic Stainless Steels (SS 304/304L, 316/316L, 316Ti, 321, 347, 202), Duplex & Super Duplex (2205 F51/S31803, 2507 F53/S32750), and Non-Ferrous Alloys (C36000 Brass, C11000 ETP Copper).

Jayesh Forge specializes strictly in closed-die hot forgings, seamless rolled rings, and precision CNC machined components up to 50 kg (110 lbs) max piece weight. We do not manufacture open-die forgings exceeding 50 kg.

Every raw material billet undergoes 100% Optical Emission Spectrometry (OES / PMI) upon receipt. Shipments are accompanied by an EN 10204 Type 3.1 Mill Test Certificate (MTC) detailing heat number, ladle chemical analysis, tensile properties, Charpy impact toughness, and ASTM A388 Level II Ultrasonic Testing.

Yes, our ASTM A350 LF2, SS 316L, Duplex 2205, and Super Duplex 2507 forgings are supplied in fully solution-annealed or normalized and tempered conditions with hardness strictly controlled below 22 HRC (or 28 HRC for Duplex), conforming 100% to NACE MR0175 / ISO 15156 sour service.

Located in the precision engineering hub of Rajkot, Gujarat, Jayesh Forge is 240 km from Port Mundra and 230 km from Port Kandla. Containerized dispatches reach UAE/GCC ports in 3–5 days, European ports in 18–22 days, and North American ports in 28–32 days.

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