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Qualification Certificates

API 6A alignment, ISO 9001, EN 10204 3.1 and optional NACE MR0175 documentation.

By Steinhart Quality , Quality · 2026-08-18

Documentation supporting API 6A-aligned high-pressure fittings, ISO 9001 quality management, EN 10204 3.1 material certificates and optional NACE MR0175 sour service.

FAQ

API 6A

Wellhead and Christmas-tree equipment / high-pressure oilfield fittings manufactured to API Spec 6A requirements with supporting MTR, NDT and hydrotest documentation.

ISO 9001

Quality management system supporting controlled processes from forging and machining through inspection and shipment.

EN 10204 3.1

Material test certificates (type 3.1) available on demand for traceable heat and chemical/mechanical properties.

NACE MR0175

Optional sour-service heat treatment and material selection for H₂S-containing environments — specify medium condition at order.

STEINHART PETROLEUM PIPING

Steinhart Petroleum Piping (Hebei) Co., Ltd. supplies high-pressure oilfield fittings — hammer unions, manifolds, valves and skids — for fracturing, cementing and wellhead projects worldwide.

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Hengshui, Hebei

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