ASTM A193 Grade B7 Bolts Manufacturer, Supplier & Exporter in Mumbai, India
ASTM A193 Grade B7 is the most widely specified chromium-molybdenum alloy steel bolting grade for high-temperature and high-pressure service covering pressure vessels, flanges, valves and fittings across oil & gas, petrochemical and power generation globally. Manufactured from AISI 4140, 4142 or 4145 Cr-Mo steel and supplied in the quenched and tempered condition, Grade B7 delivers a minimum tensile strength of 125 ksi (860 MPa) with a controlled maximum hardness of 35 HRC.
Jade Alloys holds dual ASTM and ASME certification as a manufacturer, supplier and exporter of ASTM A193 / ASME SA193 Grade B7 Bolts, operating from Mumbai, India. We supply refineries, power plants, petrochemical EPC contractors and procurement teams in the USA, Middle East, Europe and Asia. Every B7 fastener we produce is batch-tested for chemistry and mechanical properties, with full Mill Test Reports issued per EN 10204 3.1. You can find a detailed breakdown of what the standard covers on our ASTM A193 standard overview page.
Pair your B7 bolts with ASTM A194 Grade 2H Heavy Hex Nuts for a fully code-compliant bolting assembly. For sour-service environments containing wet H₂S, specify Grade B7M available in the same sizes with NACE MR0175 / ISO 15156 documentation. Browse our complete range of Alloy Steel Fasteners for all related grades and specifications.
ASTM A193 Grade B7 Bolts Specification Overview
| Property | Details |
|---|---|
| Standard | ASTM A193 / ASME SA193 |
| Grade | B7 (also available: B7M, B16, B8, B8M) |
| Material / Alloy | Chromium-Molybdenum Alloy Steel — AISI 4140, 4142, 4145 |
| Heat Treatment | Quenched & Tempered — min. tempering temp. 1150°F (620°C) |
| Bolt Dimensions Standard | ASME B18.2.1, ASME B18.3 |
| Thread Configuration | ASME B1.1 (2A/3A) — UNC/UNF; ASME B1.13M 6h — Metric Coarse |
| Thread Note (Diameter > 1″) | 8 TPI (threads per inch) for traditional applications |
| Size Range — Inch | ¼″ to 4″; custom to 7″ |
| Size Range — Metric | M6 to M180 |
| Certification | Dual Certified ASTM & ASME; PED 97/23/EC; Merkblatt AD 2000 W2 |
| NACE Compliance | NACE MR0103; NACE MR0175 / ISO 15156 |
| Recommended Nut | ASTM A194 Grade 2H (standard); A194 Grade 2HM (sour service) |
| Operating Temp Range | –50°C to +482°C (–58°F to +900°F) |
| Product Origin | Made in India — Mumbai |
Request a Free Quote for ASTM A193 B7 Bolts
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Types of ASTM A193 Grade B7 Fasteners
Also available: Threaded Rods, Double End Studs, Square Head Bolts, J-Bolts and custom profiles. See our Alloy Steel Bolts category for all grades.
ASTM A193 Grade B7 Fasteners Chemical Composition
Grade B7 fasteners are produced from chromium-molybdenum alloy steel. The chromium content provides corrosion resistance and hardenability, while molybdenum enhances strength at elevated temperatures. The following composition limits apply:
| Element | Symbol | Min (%) | Max (%) |
|---|---|---|---|
| Carbon | C | 0.37 | 0.49 |
| Manganese | Mn | 0.65 | 1.10 |
| Phosphorus | P | — | 0.035 |
| Sulfur | S | — | 0.040 |
| Silicon | Si | 0.15 | 0.35 |
| Chromium | Cr | 0.75 | 1.20 |
| Molybdenum | Mo | 0.15 | 0.25 |
Source: ASTM A193 Standard Specification for Alloy-Steel and Stainless Steel Bolting for High Temperature or High Pressure Service.
ASTM A193 Grade B7 Mechanical Properties
Mechanical properties vary with diameter. For a full grade comparison by tensile class, see our Bolt Tensile Strength Chart blog.
Inch Sizes
| Diameter (in) | Min Temp (°F) | Tensile Min | Yield Min (0.2%) | Elong Min | Red. of Area | Hardness Max |
|---|---|---|---|---|---|---|
| ≤ 2½″ | 1100 | 125 ksi / 860 MPa | 105 ksi / 725 MPa | 16% | 50% | 321 HBW / 35 HRC |
| 2½″ to 4″ | 1100 | 115 ksi / 795 MPa | 95 ksi / 655 MPa | 16% | 50% | 321 HBW / 35 HRC |
| 4″ to 7″ | 1100 | 100 ksi / 690 MPa | 75 ksi / 515 MPa | 18% | 50% | 321 HBW / 35 HRC |
Metric Sizes
| Diameter (mm) | Min Temp (°C) | Tensile Min (MPa) | Yield Min (MPa) | Elong Min | Red. of Area | Hardness Max |
| M64 and under | 593 | 860 | 720 | 16% | 50% | 321 HBW / 35 HRC |
| Over M64 to M100 | 593 | 795 | 655 | 16% | 50% | 321 HBW / 35 HRC |
| Over M100 to M180 | 593 | 690 | 515 | 18% | 50% | 321 HBW / 35 HRC |
ASTM A193 B7 vs B7M — Choosing the Right Grade
Both grades use the same Cr-Mo alloy base, but B7M is heat-treated to a lower maximum hardness specifically for sour (H₂S) service compliance under NACE MR0175 / ISO 15156.
| Property | Grade B7 | Grade B7M |
|---|---|---|
| Base Material | AISI 4140/4142/4145 | AISI 4140/4142/4145 |
| Max Hardness | 35 HRC / 321 HBW | 22 HRC / 235 HBW |
| Min Tensile (≤2½″) | 125 ksi (860 MPa) | 100 ksi (690 MPa) |
| Sour Service (NACE MR0175) | Not qualified | Fully qualified |
| Paired Nut Grade | A194 Gr. 2H | A194 Gr. 2HM |
| Typical Application | General high-press / high-temp | Wet H₂S / sour crude / acid gas |
Specify B7M when the bolting environment contains wet H₂S. Paired with ASTM A194 Grade 2H Nuts for standard service or A194 2HM for sour environments. See also our ASTM A194 standard page.
ASTM A193 B7 vs B16 — When to Upgrade to Vanadium Grade
For service above ~482°C (900°F) particularly steam turbines and boiler bolting engineers specify ASTM A193 B16 Bolts (vanadium-enhanced Cr-Mo). B7 remains the workhorse for standard petrochemical and refinery bolting.
| Property | Grade B7 | Grade B16 |
|---|---|---|
| Alloying Element | Cr-Mo (no vanadium) | Cr-Mo + 0.25–0.35% Vanadium |
| Min Tensile (≤2½″) | 125 ksi (860 MPa) | 125 ksi (860 MPa) |
| Max Service Temp | ~482°C (900°F) | ~593°C (1100°F) |
| Creep Resistance | Moderate | Superior |
| Typical Application | Standard high-press/temp | Ultra-high-temp steam, boilers, turbines |
Temperature & Pressure Service Range
|
Operating Temperature: –50°C to +482°C (–58°F to +900°F) For below –50°C: Specify ASTM A320 L7 Bolts (Charpy impact tested) For above +482°C: Specify ASTM A193 B16 (vanadium grade for creep resistance) Min. Tempering Temp: 620°C (1150°F) per ASTM A193 Design Pressure: Suitable for ASME B16.5 / B16.47 rated flanges and pressure vessels |
For sub-zero cryogenic applications, see ASTM A320 L7 Bolts. For an in-depth comparison, read our blog: ASTM A193 vs A320 — High Temperature vs Cryogenic Bolting.
ASTM A193 B7 Heavy Hex Bolt Dimensions (Inch — ASME B18.2.1)
For a printable bolt weight reference, see our Bolts Weight Chart and the Bolt Weight Chart blog (M6–M64). All dimensions in inches.
| Dia (D) | Body Max | Body Min | Flats Max | Flats Min | Corners Max | Corners Min | Head H Max | Head H Min | Thread <6″ | Thread >6″ |
|---|---|---|---|---|---|---|---|---|---|---|
| 1/2″ | 0.515 | 0.482 | 0.875 | 0.850 | 1.010 | 0.969 | 0.364 | 0.302 | 1.25″ | 1.50″ |
| 5/8″ | 0.642 | 0.605 | 1.062 | 1.031 | 1.227 | 1.175 | 0.444 | 0.378 | 1.50″ | 1.75″ |
| 3/4″ | 0.768 | 0.729 | 1.250 | 1.212 | 1.443 | 1.383 | 0.524 | 0.455 | 1.75″ | 2.00″ |
| 7/8″ | 0.895 | 0.852 | 1.438 | 1.394 | 1.660 | 1.589 | 0.604 | 0.531 | 2.00″ | 2.25″ |
| 1″ | 1.022 | 0.976 | 1.625 | 1.575 | 1.876 | 1.796 | 0.700 | 0.591 | 2.25″ | 2.50″ |
| 1-1/4″ | 1.277 | 1.223 | 2.000 | 1.938 | 2.309 | 2.209 | 0.876 | 0.749 | 2.75″ | 3.00″ |
| 1-1/2″ | 1.531 | 1.470 | 2.375 | 2.300 | 2.742 | 2.622 | 1.036 | 0.902 | 3.25″ | 3.50″ |
| 2″ | 2.039 | 1.964 | 3.125 | 3.025 | 3.608 | 3.449 | 1.388 | 1.175 | 4.25″ | 4.50″ |
| 2-1/2″ | 2.559 | 2.461 | 3.875 | 3.750 | 4.474 | 4.275 | 1.708 | 1.479 | 5.25″ | 5.50″ |
| 3″ | 3.081 | 2.961 | 4.625 | 4.475 | 5.340 | 5.102 | 2.060 | 1.815 | 6.25″ | 6.50″ |
ASTM A193 B7 Hex Bolt Dimensions (Metric — mm)
| Size | D Max | D Min | H Max | H Min | F Max | F Min | C Max | C Min |
|---|---|---|---|---|---|---|---|---|
| M10 | 10.00 | 9.78 | 6.63 | 6.17 | 17.00 | 15.73 | 18.48 | 17.77 |
| M12 | 12.00 | 11.73 | 7.76 | 4.24 | 19.00 | 17.73 | 20.78 | 20.03 |
| M16 | 16.00 | 15.73 | 10.32 | 9.68 | 24.00 | 23.67 | 27.71 | 26.75 |
| M20 | 20.00 | 19.67 | 12.88 | 12.12 | 30.00 | 29.16 | 34.64 | 32.95 |
| M24 | 24.00 | 23.67 | 15.44 | 14.56 | 36.00 | 35.00 | 41.57 | 39.55 |
| M30 | 30.00 | 29.67 | 19.48 | 17.92 | 46.00 | 45.00 | 53.12 | 50.85 |
| M36 | 36.00 | 35.61 | 23.38 | 21.63 | 55.00 | 53.80 | 63.51 | 60.79 |
| M48 | 48.00 | 47.38 | 31.07 | 28.93 | 75.00 | 72.60 | 86.60 | 82.76 |
| M64 | 64.00 | 63.26 | 41.32 | 38.68 | 95.00 | 91.80 | 109.70 | 104.65 |
| M80 | 80.00 | 79.26 | 51.58 | 48.42 | 115.00 | 111.00 | 132.72 | 126.54 |
| M100 | 100.00 | 99.13 | 63.90 | 60.10 | 145.00 | 140.00 | 167.43 | 159.60 |
ASTM A193 B7 Torque Chart With A194 Grade 2H Nuts
Reference torque values with ASTM A194 Grade 2H Nuts and K = 0.15 (standard lubricant). Always verify against ASME PCC-1 or your project bolt tightening specification.
| Bolt Size | TPI | Torque Dry (ft-lbs) | Torque Lubricated (ft-lbs) | Torque Lubricated (Nm) | Proof Load (lbs) | Clamp Load (lbs) |
|---|---|---|---|---|---|---|
| 1/4″ | 20 | 9 | 7 | 9 | 3,350 | 2,513 |
| 3/8″ | 16 | 32 | 24 | 33 | 8,150 | 6,113 |
| 1/2″ | 13 | 77 | 58 | 79 | 14,900 | 11,175 |
| 5/8″ | 11 | 151 | 113 | 153 | 23,750 | 17,813 |
| 3/4″ | 10 | 267 | 200 | 271 | 35,050 | 26,288 |
| 7/8″ | 9 | 432 | 324 | 439 | 48,500 | 36,375 |
| 1″ | 8 | 648 | 486 | 659 | 63,650 | 47,738 |
| 1-1/4″ | 8 | 1,293 | 970 | 1,315 | — | — |
| 1-1/2″ | 8 | 2,299 | 1,725 | 2,339 | — | — |
| 2″ | 8 | 5,750 | 4,313 | 5,849 | — | — |
| 2-1/2″ | 8 | 11,340 | 8,505 | 11,534 | — | — |
⚠️ Reference values only. Consult ASME PCC-1 or applicable project spec for final torque requirements.
A193 B7 Stud Bolt Weight Chart (lbs/piece)
Approximate weights for plain (uncoated) double-end stud bolts. Hot-dip galvanizing adds ~3–5%. Full weight tables at our Bolts Weight Chart page and Bolt Weight Chart blog.
| Length | 1/2″ | 3/4″ | 1″ | 1-1/4″ | 1-1/2″ |
|---|---|---|---|---|---|
| 3″ | 0.13 | 0.30 | 0.55 | 0.90 | 1.33 |
| 4″ | 0.17 | 0.40 | 0.74 | 1.20 | 1.77 |
| 5″ | 0.22 | 0.51 | 0.93 | 1.50 | 2.22 |
| 6″ | 0.26 | 0.61 | 1.11 | 1.80 | 2.66 |
| 7″ | 0.30 | 0.71 | 1.30 | 2.10 | 3.10 |
Compatible Nuts & Washers for ASTM A193 B7 Bolts
| Nut Grade | Service Condition | Standard | Notes |
|---|---|---|---|
| ASTM A194 Grade 2H | General high-pressure/high-temp | ASTM A194 | Most common pairing with B7 |
| ASTM A194 Grade 2HM | Sour service H₂S (with B7M) | ASTM A194 | Lower hardness — NACE MR0175 compliant |
| ASTM A194 Grade 4 | High-temp service >900°F | ASTM A194 | Mo alloy; for extreme temps |
| ASTM A194 Grade 7 | Low-temp service (with A320 L7) | ASTM A194 | Quenched & tempered alloy steel |
| ASTM A563 Grade DH | General purpose alternative | ASTM A563 | Heavy hex; where A194-2H unavailable |
Washer Recommendation: ASTM F436 Type 1 hardened steel washers under ASME PCC-1.
Available Surface Coatings & Finishes
For a full comparison of bolt coating types and corrosion protection levels, read: Types of Fastener Coatings and Galvanized Bolts vs Stainless Steel Bolts.
| Coating / Finish | Standard / Process | Best Application |
|---|---|---|
| Plain (Self-Colour) | No coating — natural steel | Dry / indoor; apply bolt lubricant at site |
| Hot-Dip Galvanized | ASTM A153 / ISO 1461 | Outdoor / marine; significant corrosion protection |
| PTFE / Xylan Coated | ASTM B117 salt-spray tested | Chemical environments; consistent assembly torque |
| Zinc-Nickel Plated | ASTM B633 | Atmospheric corrosion; marine and industrial use |
| Black Phosphate | MIL-DTL-16232 | Assembly lubrication; mild corrosion protection |
| Ceramic Coated | Project-specific | Ultra-high-temp furnace and exhaust applications |
Quality Testing & Certifications
Every batch of ASTM A193 B7 Bolts from Jade Alloys is tested before dispatch. View our Quality Policy and Certificates page for Mill Test Certificate samples and inspection accreditation.
| Test / Inspection | Method / Standard | Acceptance Criteria |
|---|---|---|
| Tensile & Yield Test | ASTM A370 — Universal Testing Machine | Min. tensile & yield per diameter range |
| Hardness Test | Rockwell HRC / Brinell HBW — ASTM E18 / E10 | Max 35 HRC / 321 HBW |
| Chemical Analysis (PMI) | OES / XRF Spectrometry | Within ASTM A193 composition limits |
| Dimensional Inspection | Vernier, micrometer, CMM, Go/No-Go gauges | Per ASME B18.2.1 / B18.3 tolerances |
| Thread Gauging | ASME B1.1 thread gauges (Go/No-Go) | Class 2A / 3A as specified |
| Charpy Impact Test | ASTM E23 (on request) | Per ASTM A320 if low-temp service required |
| MPI / UT | ASTM E709 / ASTM A388 (on request) | No surface or sub-surface defects |
Certifications: Dual Certified ASTM & ASME | PED 97/23/EC | AD 2000 W2 | NACE MR0175 / MR0103 | MTC EN 10204 3.1 standard; 3.2 on request | TPI: TUV, BV, SGS, Lloyds, Intertek
ASTM A193 B7 Bolts Inventory
ASTM A193 B7 Bolts
ASTM A193 B7 Stud Bolts
ASTM A193 B7 Hex Bolts
Applications of ASTM A193 B7 Bolts by Industry
Read Benefits of Using Alloy Steel Fasteners in Industrial Applications for an in-depth look at why Cr-Mo B7 bolts outperform carbon steel fasteners in demanding service.
| Industry | Specific Applications |
|---|---|
| Oil & Gas Upstream | Wellhead flanges, BOP assemblies, Christmas tree components, pipeline flanges |
| Petrochemical & Refining | Pressure vessel bolting, heat exchanger flanges, reactor closures, pump casings |
| Power Generation | Steam turbine casings, boiler drum flanges, high-pressure valve bonnet bolting |
| Chemical Processing | Reactor flanges, agitator shaft retention, pressure system bolting |
| Heavy Construction | Structural bolting in industrial frames, high-load anchor bolt systems |
| Shipbuilding & Marine | Engine room pressure connections, exhaust manifolds, high-temp piping |
Manufacturing Process at Jade Alloys, Mumbai
| Step | Stage | Description |
|---|---|---|
| 1 | Raw Material | Mill-certified AISI 4140/4142/4145 bar stock — traceable heat numbers |
| 2 | Forming | Cold heading or hot forging depending on diameter and fastener type |
| 3 | Heat Treatment | Austenitizing → liquid quench → temper at min. 620°C (1150°F) |
| 4 | Threading | Thread rolling / cutting to ASME B1.1 (UNC/UNF) or B1.13M (metric) |
| 5 | Surface Treatment | Plain, HDG, PTFE, Zinc-Nickel, Black Phosphate as specified |
| 6 | Inspection | 100% dimensional verification — calibrated gauges, CMM, thread gauges |
| 7 | Testing | Tensile, hardness, PMI chemical analysis, Charpy impact on request |
| 8 | TPI / MTC | Third-party inspection; MTC per EN 10204 3.1 / 3.2 issued |
| 9 | Packing & Dispatch | Rust-preventive packing; ISPM-15 fumigated export crating |
Packaging & Global Export from Mumbai
Jade Alloys ships ASTM A193 B7 Bolts to 35+ countries. Packaging complies with ISPM-15 fumigation requirements. Export documents: commercial invoice, packing list, certificate of origin, MTC and fumigation certificate.
Why Choose Jade Alloys for ASTM A193 B7 Bolt Manufacturer in Mumbai?
- 20+ years manufacturing experience in alloy steel fasteners
- Direct manufacturer — no middlemen; competitive ex-works pricing
- Ready stock ¼″ to 4″ (M6 to M100) for urgent project requirements
- Dual-certified ASTM & ASME; PED compliant for European supply
- Third-party inspection at our Mumbai facility by customer-nominated bodies
- Custom sizes, thread forms and coatings in 5–15 working days
- Full material traceability — heat numbers on every MTC
- Mercury-free & radioactive contamination-free certification available
- Established export track record — 35+ countries, 6 continents
Frequently Asked Questions — ASTM A193 B7 Bolts
What is ASTM A193 Grade B7?
ASTM A193 Grade B7 is a standard specification for high-strength chromium-molybdenum alloy steel bolts, studs and threaded fasteners used in pressure vessels, valves, flanges and fittings for high-temperature or high-pressure service. Grade B7 is manufactured from AISI 4140, 4142 or 4145 Cr-Mo steel and supplied in the quenched and tempered condition. It delivers a minimum tensile strength of 125 ksi (860 MPa) for diameters up to 2½ inches and is the most widely used bolting specification in oil & gas and petrochemical industries worldwide.
What material are ASTM A193 B7 bolts made from?
ASTM A193 Grade B7 bolts are made from chromium-molybdenum (Cr-Mo) alloy steel, most commonly AISI 4140, 4142 or 4145 steel grades. The chemical composition includes 0.75–1.20% chromium and 0.15–0.25% molybdenum, which together provide the hardenability, elevated-temperature strength and creep resistance required for high-pressure bolting service. The steel is supplied in the quenched and tempered condition, with a minimum tempering temperature of 593°C (1100°F) as specified in ASTM A193.
What nut should be used with ASTM A193 B7 bolts?
ASTM A194 Grade 2H heavy hex nuts are the standard recommended mating nut for ASTM A193 Grade B7 bolts in general high-pressure and high-temperature service. For sour-service applications specifying B7M bolts — where the medium contains wet hydrogen sulphide (H₂S) — ASTM A194 Grade 2HM nuts are required. ASTM F436 Type 1 hardened steel washers are recommended where required by the flange assembly code. Jade Alloys supplies complete bolting sets with a single documentation package.
What is the temperature range for A193 B7 bolts?
ASTM A193 Grade B7 bolts are rated for service temperatures from –50°C to +482°C (–58°F to +900°F). Below –50°C, impact toughness may be insufficient and ASTM A320 Grade L7 bolts (Charpy impact tested) should be specified instead. For service temperatures above 482°C — such as high-pressure steam turbine or boiler applications — ASTM A193 Grade B16 bolts (chromium-molybdenum-vanadium) are the appropriate upgrade, offering superior creep resistance up to approximately 593°C.
What is the difference between A193 B7 and B7M?
Both grades use the same Cr-Mo alloy steel base, but B7M is heat-treated to a lower maximum hardness of 235 HBW (22 HRC) compared to 321 HBW (35 HRC) for standard B7. This lower hardness makes B7M resistant to hydrogen-induced stress cracking (HISC) in wet H₂S environments, qualifying it for sour service under NACE MR0175 and ISO 15156. Always specify B7M — paired with A194 Grade 2HM nuts — when the service medium contains hydrogen sulphide, regardless of H₂S concentration.
What are the mechanical properties of ASTM A193 Grade B7?
For diameters up to 2½ inches (M64 and under), ASTM A193 Grade B7 has a minimum tensile strength of 125 ksi (860 MPa), minimum yield strength of 105 ksi (720 MPa), minimum elongation of 16%, minimum reduction of area of 50%, and a maximum hardness of 321 HBW or 35 HRC. For larger diameters, strength requirements step down proportionally — 115 ksi tensile for 2½″–4″, and 100 ksi tensile for 4″–7″. Full tables in inch and metric are available on our specification page.
Are ASTM A193 B7 bolts NACE compliant?
Standard ASTM A193 B7 bolts are not qualified for sour service under NACE MR0175 or ISO 15156 because their maximum hardness of 321 HBW exceeds the 235 HBW limit required for H₂S environments. For NACE compliance, the B7M variant must be specified — it uses the same Cr-Mo alloy steel tempered to a lower hardness. Jade Alloys supplies B7M with full NACE MR0103, NACE MR0175 and ISO 15156 documentation, including hardness test certificates per ASTM A370.
What coatings are available for A193 B7 bolts?
ASTM A193 B7 bolts are available in plain (as-machined / black finish), hot-dip galvanized (HDG per ASTM A153), zinc electroplated (ASTM B633), PTFE or Xylan coated, black phosphate and oil, and Dacromet or Geomet coated finishes. The appropriate coating depends on the service environment — HDG for outdoor structural use, PTFE for chemical service requiring galling resistance, and Dacromet for high-corrosion offshore or subsea applications. Jade Alloys supplies all standard and special coatings with coating process certificates on request.
What sizes are ASTM A193 B7 bolts available in?
ASTM A193 Grade B7 bolts are available from Jade Alloys in inch sizes from ¼″ to 7″ diameter and metric sizes from M6 to M180. Standard thread configurations follow ASME B1.1 (UNC/UNF inch unified threads) and ASME B1.13M (metric coarse threads). Custom lengths, non-standard diameters and special thread forms are available to order. Stud bolts, heavy hex bolts, hex bolts, threaded rods, double-end studs, anchor bolts and eye bolts are all manufactured to ASTM A193 B7 in these size ranges.
What documentation does Jade Alloys supply with A193 B7 bolts?
Every Jade Alloys shipment of ASTM A193 Grade B7 bolts includes: Mill Test Reports (MTR) per EN 10204 3.1 or 3.2 as specified; dual ASTM A193 and ASME SA193 certification documents; chemical analysis and mechanical test certificates; hardness test certificates per ASTM A370; NACE MR0103 / MR0175 / ISO 15156 compliance certificates for B7M; and PED 97/23/EC documentation for EU supply. Complete documentation packages to EPC contractor and refinery procurement requirements are available in PDF on despatch.
Related Products
ASTM A193 Grade B7 Bolts are the proven, industry-standard Cr-Mo alloy fastening solution for high-temperature and high-pressure pressure equipment. Jade Alloys, Mumbai, supplies the complete range of B7 Stud Bolts, Heavy Hex Bolts, Anchor Bolts and Threaded Rods dual-certified, ready-stocked and export-ready. For a free quote, detailed MTC samples or technical support, contact our team today.
Request a Free Quote for ASTM A193 B7 Bolts
- Fast response within 4 business hours
- Competitive ex-works pricing from Mumbai
- All sizes, grades and certifications available
📞 +91 9987685906 | ✉ sales@jadealloys.com
