T/JSQA 135-2022 Active Group standards

T/JSQA 135-2022 Double-phase stainless steel welded pipe fittings

Publish Date: 2022-05-16 Implement Date: 2022-05-16 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/JSQA 135-2022

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Mechanical

ICS Name: Flanges, pipe joints, and connectors

Publish Date: 2022-05-16

Implement Date: 2022-05-16

Scope

Scope: This document specifies the types and designations of DN15~DN1500 (NPS1/2~NPS60) duplex stainless steel butt-welded fittings (elbows, tees, and cross tees, reducers, pipe caps), their pressure design, dimensions, surface profiles, end bevels, materials, manufacturing and heat treatment, requirements, inspection and test methods, and inspection rules. This document applies to duplex stainless steel butt-welded seamless fittings and welded fittings. Main technical content: This standard specifies the types and designations of factory-manufactured duplex stainless steel butt-welded fittings, key dimensions, surface profiles, end bevels, tolerances, materials, manufacturing and heat treatment, quality requirements, inspection rules, marking, packaging, storage, and quality certificates. This standard specifies the types and designations, dimensions and tolerances, materials, manufacturing, inspection and testing, marking, protection and packaging of factory-manufactured duplex stainless steel butt-welded fittings (elbows, tees, and cross tees, reducers, pipe caps) with diameters ranging from DN50 to DN1200 (NPS2 to NPS48). This standard applies to non-welded fittings (seamless fittings) made from duplex stainless steel seamless pipes and welded fittings made from duplex stainless steel plates.