Shanghai Roc-Master Hardware Co., Ltd.

Shanghai Roc-Master Hardware Co., Ltd. is a professional manufacturer and supplier of piping products. We have more than ten years' experience in serving for the projects related to oil and gas, petroleum, power plant, petrol-chemical, mining, textile, mechanical, pulp and marine industries.

Our production scope is listed as follows:
Forged flanges:
1) Material: ASTM A105, ASTM A350 LF2, ASTM A694 F52, ASTM A694 F60,
ASTM A694 F65, ASTM A694 F70, ASTM A182 F304, ASTM A182 304L,
ASTM A182 F316, ASTM A182 316L, ASTM B62
2) Specification: ANSI B16.5, ANSI B16.47 A (MSS SP-44), ANSI B16.48,
ANSI B16.36, ANSI B 16.24

Forged fittings:
1) Elbows, tees, reducing couplings, unions, couplings, nipples, caps,
bushings, crosses, weldolets, and threadolets
2) Material: ASTM A105, ASTM A350 LF2, ASTM A694 F52, ASTM A694 F60,
ASTM A694 F65, ASTM A694 F70, ASTM A182 F304, ASTM A182 F304L,
ASTM A182 F316 and ASTM A182 F316L
3) Specification: ANSI B16.11, MSS SP-79, MSS SP-83, MSS SP-95 and MSS
SP-97

Bolts, nuts and washers:
1) Stud bolts (threaded rods) and hex bolts
a) Material: ASTM A193 B7, ASTM A307, ASTM A325
b) Specification: UNC, DIN 975, ANSI B18.2.1, DIN931 and DIN933
2) Nuts
a) Material: ASTM A194 2H, ASTM A563
b) Specification: ANSI B 18.2.2, DIN 934,DIN985
3) Flat and spring washers:
a) Material: carbon steel and stainless steel
b) Specification: ANSI B 18.22.1, ANSI B18.21.1, DIN 125, DIN9021,
DIN 127, DIN 7980

Butt weld pipe fittings:
1) Material: ASTM A234 WPB, WPHY-42, WPHY-46, WPHY-52, WPHY-56,
WPHY-60, WPHY-65, WPHY-70, ASTM A403 WP 304, ASTM A403 WP
304L, ASTM A403 WP 316, ASTM A403 WP316L
2) Specification: ANSI B16.9/16.28, MSS SP-43, MSS SP-75

EMT and rigid steel conduit:
1) Specification: UL 797, UL 6

Welded pipes / tubes:
1) Outside diameter: 8mm to 89mm.
2) Wall thickness: 0.5mm to 4mm
3) Finish: plain or hot dip galvanized

Cut groove pipes:
1) Material: ASTM A53 grade B seamless or ERW
2) Standard cut groove specifications: 25.01 and 25.02

There are eleven production plants and more than 1,000 skillful workers and intelligent staffs in our company. We attach great importance to quality control and we have set up our special quality control department.

Proudly speaking, we have five competent technical and quality control engineers with engineering bachelor degrees and more than 35 years' relevant experience.

ISO quality standard is implemented throughout the whole production process from raw material to finished products. Our products are widely accepted by many world famous multinational companies, such as ABB, AMEC, APP, BASF, BECHTEL, CNOOC, COOEC, CPPMEC, FLUOR, IVANHOE MINES, JGC, KODAK, ROCKWELL, SHELL, and VETCOGRAY.

We have exported products to more than 10 countries with the export volume reaching USD2,000,000. And now we are making more efforts to do better. You are warmly welcomed to our company for quality products, reasonable price and best services.