Standards & Specifications | RR Hydraulic – ISO, ASME, DIN, ASTM Certified

Quality Assurance

InternationalStandards &Specifications

RR Hydraulic manufactures to all major international standards — ISO, ASME, DIN, ASTM, BS, EN, JIS and more. Every product is certified, documented and traceable.

ISO 9001:2015

ASME B18

DIN Standards

ASTM / AISI

EN 14399

BS / PED

JIS Standards

IS Standards

Standards We Follow

Certifications & Standards

Our products conform to the most widely recognised international standards used across construction, oil & gas, power and industrial sectors.

ISO

ISO — International

ISO 9001:2015

Quality management system standard. Covers entire production process from raw material procurement to final dispatch and documentation.

QualityCertifiedAll Products

ASME

ASME — American

ASME B18

American Society of Mechanical Engineers standard for bolts, screws, nuts and fasteners — dimensional and mechanical requirements.

B18.2.1B18.2.2B18.3Fasteners

DIN

DIN — German

DIN Standards

German Institute for Standardization covering all major fastener, flange and pipe fitting grades including DIN 931, 933, 934, 2573 and more.

DIN 931DIN 933DIN 934DIN 975DIN 2573

ASTM

ASTM / AISI — American

ASTM Standards

American Society for Testing and Materials — covers all material grades for fasteners and pressure equipment including A193, A194, A307, A325.

A193A194A307A325A490

EN — European

EN 14399

European standard for high-strength structural bolting assemblies for preloading — critical for structural steel connections and bridges.

StructuralHigh StrengthPreloading

BS / PED — British / EU

BS & PED

British Standards and Pressure Equipment Directive — for fasteners used in pressure vessels, boilers and piping systems in Europe.

Pressure EquipmentPED 2014/68/EUBS 4190

ANSI

ANSI / ASME — American

ANSI B16 — Flanges

ANSI/ASME B16 series covers pipe flanges, fittings, valves and gaskets — the most widely used standard for piping systems worldwide.

B16.5B16.9B16.11B16.47

BIS — Indian

IS Standards

Bureau of Indian Standards — covering fasteners, flanges and structural hardware for Indian infrastructure and government projects.

IS 1363IS 1364IS 1367IS 6392

JIS

JIS — Japanese

JIS Standards

Japanese Industrial Standards for bolts, nuts, washers and pipe fittings — widely used in Japanese OEM manufacturing and export projects.

JIS B1180JIS B1181JIS B2220

Standards Reference

Fastener Standard Cross-Reference

Quick reference mapping of product types to their applicable international standards.

Product Type	DIN	ISO	ASME/ANSI	ASTM	BS/EN	IS
Hex Bolt — Full Thread	DIN 933	ISO 4017	ASME B18.2.1	A307A325	EN 15048	IS 1363
Hex Bolt — Part Thread	DIN 931	ISO 4014	ASME B18.2.1	A307	EN 14399	IS 1364
Hex Nut	DIN 934	ISO 4032	ASME B18.2.2	A194	EN 24032	IS 1364
Stud Bolt	DIN 939	ISO 4033	ASME B16.5	A193 B7	EN 14399	IS 1367
Socket Cap Screw	DIN 912	ISO 4762	ASME B18.3	A574	EN ISO 4762	IS 2269
Plain Washer	DIN 125	ISO 7089	ASME B18.22.1	F436	EN ISO 7089	IS 2016
Spring Washer	DIN 127	ISO 7090	ASME B27.1	F959	EN ISO 7090	IS 3063
Slip-On Flange	DIN 2573	ISO 7005	ASME B16.5	A105	EN 1092	IS 6392
Weld Neck Flange	DIN 2633	ISO 7005	ASME B16.5B16.47	A105A182	EN 1092-1	IS 6392
Elbow 90°	DIN 2605	ISO 3419	ASME B16.9	A234A403	EN 10253	IS 1239
Threaded Rod	DIN 975DIN 976	ISO 888	ASME B18.31	A307	EN ISO 898	IS 1367

Deep Dive

Standard Details & Scope

Click any standard to see its full scope, applicable products and material grades.

ISO

ISO 9001:2015 — Quality Management

International Organization for Standardization

Scope

Covers quality management across the entire production process — design, raw material procurement, manufacturing, inspection, packaging and dispatch. All RR Hydraulic products are manufactured under this certified system.

Applicable Products

All FastenersAll FlangesAll FittingsCustom Parts

Key Requirements

Full material traceability · Dimensional inspection records · Non-conformance reporting · Customer satisfaction monitoring · Continuous improvement

ASME

ASME B18 — Fastener Dimensions

American Society of Mechanical Engineers

Scope

ASME B18 is a series of standards covering the dimensional and mechanical requirements of bolts, screws, nuts and washers used in mechanical and structural applications.

Key Sub-Standards

B18.2.1 — Hex BoltsB18.2.2 — Hex NutsB18.3 — Socket ScrewsB18.6 — Wood ScrewsB18.22.1 — Washers

ASTM

ASTM — Material Standards

American Society for Testing and Materials

Scope

ASTM standards define the material composition, mechanical properties and heat treatment requirements for fasteners and pressure equipment. These are the most widely used material standards globally for bolting.

Key Grades

A193 B7 — Alloy Stud BoltsA194 2H — Heavy Hex NutsA307 — Low Carbon BoltsA325 — Structural BoltsA490 — High StrengthA320 L7 — Low Temp

ANSI

ANSI B16 — Pipe Flanges & Fittings

American National Standards Institute

Scope

ANSI/ASME B16 series is the most comprehensive standard for pipe flanges, fittings, valves and gaskets. Covers pressure-temperature ratings, materials, dimensions, tolerances, testing and marking.

Key Sub-Standards

B16.5 — Pipe FlangesB16.9 — Butt Weld FittingsB16.11 — Socket / ThreadedB16.47 — Large Diameter FlangesB16.25 — Buttweld Ends

DIN

DIN Standards — German Institute

Deutsches Institut für Normung

Scope

DIN standards are the most commonly specified European standards for fasteners. They define dimensional requirements for hex bolts, hex nuts, threaded rods, washers and flanges. Most DIN standards are now harmonised with ISO.

Key Standards

DIN 931 — Hex Bolts PTDIN 933 — Hex Bolts FTDIN 934 — Hex NutsDIN 975 — Threaded RodDIN 912 — Socket ScrewsDIN 125 — Flat WashersDIN 127 — Spring WashersDIN 580 — Eye Bolts

EN 14399 — Structural Bolting

European Committee for Standardization

Scope

EN 14399 covers high-strength structural bolting assemblies for preloading — used in structural steel construction, bridges and heavy infrastructure projects across Europe and internationally.

Parts Covered

Part 1 — General RequirementsPart 2 — Suitability TestingPart 3 — HR SystemPart 4 — HV SystemPart 6 — Plain Chamfered WashersPart 8 — DTI Washers

Standards Comparison

Which Standard Do You Need?

Use this table to identify the right standard for your project region and application.

Standard	USA / Canada	Europe / UK	India	Middle East	Australia	Japan
ASME / ASTM	✓ Primary	Accepted	Accepted	✓ Primary	Accepted	—
DIN / ISO	Accepted	✓ Primary	✓ Used	✓ Used	✓ Used	Accepted
EN / BS	—	✓ Primary	Accepted	Accepted	Accepted	—
IS (BIS)	—	—	✓ Primary	—	—	—
JIS	—	—	—	—	—	✓ Primary
ISO 9001	✓ Global	✓ Global	✓ Global	✓ Global	✓ Global	✓ Global